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Liu Y, Zhai Q, Lv J, Wu Y, Liu X, Zhang H, Wu X. Construction of a fusant bacterial strain simultaneously degrading atrazine and acetochlor and its application in soil bioremediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2025; 962:178478. [PMID: 39818196 DOI: 10.1016/j.scitotenv.2025.178478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2024] [Revised: 12/05/2024] [Accepted: 01/09/2025] [Indexed: 01/18/2025]
Abstract
Application of herbicide-degrading bacteria is an effective strategy to remove herbicide in soil. However, the ability of bacteria to degrade a herbicide is often severely limited in the presence of other pesticide. In this study, the atrazine-degrading strain Klebsiella varicola FH-1 and acetochlor-degrading strain Bacillus Aryabhatti LY-4 were used as parent strains to construct the recombinant RH-92 strain through protoplast fusion technology. Compared with the parent strains, RH-92 exhibited enhanced ability to degrade herbicide mixture containing atrazine and acetochlor, exhibiting 63.16 % and 68.48 % higher degradation rates, respectively. RAPD analysis showed that gene rearrangement occurred during protoplast fusion, and the genetic similarity indexes of the fused strain RH-92 and the two parent strains were 0.5853 and 0.4240, respectively. HPLC-MS analysis confirmed that RH-92 shared similar degradation products and pathways with both parent strains but exhibited a novel metabolic pathway for the continuous degradation of CMEPA (degradation product of acetochlor) into MEA through amide bond hydrolysis. The activities of GSH, GST and SOD of RH-92 increased and the level of MDA decreased under the stress of compound herbicides. Strain RH-92 did not show a large number of bacterial apoptosis, and maintained good cell membrane integrity and permeability. The half-lives of atrazine and acetochlor were 4.9 d and 7.6 d when the parent strains FH-1 and LY-4 were applied in unsterilized soil containing herbicide mixture treatment,the application fusant RH-92 strain significantly reduced the half-life to 1.6 and 1.8 d, respectively. Furthermore, 16S rRNA sequencing indicated that RH-92 application effectively restored bacterial taxa with diminished relative abundances under herbicide mixture treatment, ameliorated phytotoxicity in soybean seedlings, and promoted enhanced vegetative growth in the roots and plant height. This study highlighted the application of fusant strains as a bioremediation strategy for combatting atrazine and acetochlor pollution in soil and provided theoretical insights.
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Affiliation(s)
- Yue Liu
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China
| | - Qianhang Zhai
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China
| | - Jiaxu Lv
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China
| | - Yulin Wu
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China
| | - Xuewei Liu
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China
| | - Hao Zhang
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China.
| | - Xian Wu
- Jilin Academy of Agricultural Sciences (Northeast Agricultural Research Center of Chin), Gongzhuling 136100, Jilin, China.
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Sindhu S, Theradimani M, Vellaikumar S, Paramasivam M, Ramamoorthy V. Development of novel rapid-growing and delicious Pleurotus djamor strains through hybridization. Arch Microbiol 2023; 206:13. [PMID: 38070036 DOI: 10.1007/s00203-023-03739-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/24/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023]
Abstract
The development of fast-growing/short cropping period oyster mushroom (Pleurotus species) having good taste is one of the important needs of mushroom growers. Pleurotus djamor strain woody1, collected recently from the dead wood, has a short cropping period of 30 days but a moderately acceptable taste. One of the cultivated Pleurotus spp., P. djamor strain MDU1, has good taste but a long cropping period of 47 days. Thus, genetic improvement of P. djamor was carried out between these two strains by pairing monokaryons (anastomosis) to develop elite hybrid strains having a short cropping period and good taste. Monokaryons of parental strains showed variation in time required for germination; i.e., basidiospores of P. djamor strain woody1 germinated and developed monokaryotic colonies in 6 days, whereas that of P. djamor strain MDU1 developed monokaryotic colonies in 8 days of incubation. In addition, variation in the growth rate and morphology of the monokaryotic mycelia of both parental strains was noticed, and fast-growing monokaryons were selected for anastomosis. Out of 60 crosses made between mycelia of monokaryotic isolates of both parental strains, 20 crosses showed clamp connection, indicating that they were successful crosses. Out of 20 hybrids, two hybrid strains, viz., W2M4 and W4M4, exhibited higher yields than their parents. They exhibited the short cropping period trait, good taste attribute, and some specific volatile metabolites. This study showed that the developed two hybrid varieties, having desirable agronomic traits, could be used in mushroom farming to increase the mushroom grower's income.
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Affiliation(s)
- S Sindhu
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - M Theradimani
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - S Vellaikumar
- Department of Biotechnology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - M Paramasivam
- Pesticide Toxicology Laboratory, Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - V Ramamoorthy
- Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India.
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Xie J, Yu Y, You J, Ye Z, Zhou F, Wang N, Zhong J, Guo L, Lin J. Ganoderma Fusions with High Yield of Ergothioneine and Comparative Analysis of Its Genomics. J Fungi (Basel) 2023; 9:1072. [PMID: 37998877 PMCID: PMC10672712 DOI: 10.3390/jof9111072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 11/25/2023] Open
Abstract
Ergothioneine (EGT), an exceptional antioxidant found ubiquitously across diverse living organisms, plays a pivotal role in various vital physiological regulatory functions. Its principal natural sources are mushrooms and animal liver tissues. Ganoderma spp., a traditional Chinese food and medicinal mushroom, boasts high concentrations of EGT. To advance the development of novel Ganoderma spp. strains with enhanced EGT yields, we employed an efficient Ganoderma spp. protoplasmic fusion system. Through molecular and biological characterization, we successfully generated seven novel fusion strains. Notably, fusion strain RS7 demonstrated a remarkable increase in mycelial EGT production (12.70 ± 1.85 mg/L), surpassing the parental strains FQ16 and FQ23 by 34.23% and 39.10%, respectively. Furthermore, in the context of the fruiting body, fusion strain RS11 displayed a notable 53.58% enhancement in EGT production (11.24 ± 1.96 mg/L) compared to its parental strains. Genomic analysis of the RS7, the strain with the highest levels of mycelial EGT production, revealed mutations in the gene EVM0005141 associated with EGT metabolism. These mutations led to a reduction in non-productive shunts, subsequently redirecting more substrate towards the EGT synthesis pathway. This redirection significantly boosted EGT production in the RS7 strain. The insights gained from this study provide valuable guidance for the commercial-scale production of EGT and the selective breeding of Ganoderma spp. strains.
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Affiliation(s)
- Jiaqi Xie
- College of Food Science, South China Agricultural University, Guangzhou 510640, China; (J.X.); (Y.Y.); (J.Y.); (F.Z.); (L.G.)
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Yinghao Yu
- College of Food Science, South China Agricultural University, Guangzhou 510640, China; (J.X.); (Y.Y.); (J.Y.); (F.Z.); (L.G.)
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Junjiang You
- College of Food Science, South China Agricultural University, Guangzhou 510640, China; (J.X.); (Y.Y.); (J.Y.); (F.Z.); (L.G.)
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Zhiwei Ye
- College of Food Science, South China Agricultural University, Guangzhou 510640, China; (J.X.); (Y.Y.); (J.Y.); (F.Z.); (L.G.)
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Fenglong Zhou
- College of Food Science, South China Agricultural University, Guangzhou 510640, China; (J.X.); (Y.Y.); (J.Y.); (F.Z.); (L.G.)
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Na Wang
- Guangzhou Alchemy Biotechnology Co., Ltd., 139 Hongming Road Guangzhou Economic Technology Zone, Guangzhou 510760, China; (N.W.); (J.Z.)
| | - Jingru Zhong
- Guangzhou Alchemy Biotechnology Co., Ltd., 139 Hongming Road Guangzhou Economic Technology Zone, Guangzhou 510760, China; (N.W.); (J.Z.)
| | - Liqiong Guo
- College of Food Science, South China Agricultural University, Guangzhou 510640, China; (J.X.); (Y.Y.); (J.Y.); (F.Z.); (L.G.)
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
| | - Junfang Lin
- College of Food Science, South China Agricultural University, Guangzhou 510640, China; (J.X.); (Y.Y.); (J.Y.); (F.Z.); (L.G.)
- Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510640, China
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Qian K, Qi Z, Xu A, Li X, Zhang B, Li Y. Interspecies hybridization between Auricularia cornea cv. Yu Muer and Auricularia heimuer cv. Bai Muer through protoplast fusion. Front Microbiol 2023; 14:1280420. [PMID: 38029091 PMCID: PMC10643175 DOI: 10.3389/fmicb.2023.1280420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Color variations in cultivated edible mushrooms present novel and potentially valuable alternatives to the research and cultivation industries. We collected, identified, and domesticated a white strain of Auricularia cornea and a white strain of Auricularia heimuer from China. However, due to an unstable phenotype and stricter requirements on environment and management technology, the production and utilization of Auricularia heimuer cv. Bai Muer make slow progress. Outcrossing is an essential means to broaden the intraspecific genetic resources to expand the gene pool and compensate for the limitations of related species hybridization. In this study, interspecies hybridization between Auricularia cornea cv. Yu Muer and Auricularia heimuer cv. Bai Muer was conducted using polyethylene glycol (PEG)-induced double-inactivated protoplast fusion. Apart from the functional complementation of double-inactivated protoplasts, the hybrids were characterized by colony morphology, antagonistic test, primordial morphology, and polymerase chain reaction (PCR) fingerprinting. The results suggested that the hybrids and their parents showed significant differences in their colony morphology. Moreover, positive barrage reactions were observed between each parent and hybrid. Inter-simple sequence repeat (ISSR) and start codon targeted (SCoT) profile analysis of fusants and parents depicted that fusants contained polymorphic bands, which indicated the rearrangement and deletion of deoxyribonucleic acid (DNA) in the fusants. Yellowish-white primordia were obtained from two hybrids. Protoplast fusion may reinforce the genetic potential and provide an ideal alternative for breeding albino Auricularia.
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Affiliation(s)
- Keqing Qian
- Northeast Asian Specialty Germplasm Resources Innovation Centre, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Zhengxiang Qi
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
| | - Anran Xu
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
| | - Xiao Li
- Northeast Asian Specialty Germplasm Resources Innovation Centre, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Bo Zhang
- Northeast Asian Specialty Germplasm Resources Innovation Centre, Jilin Agricultural University, Changchun, China
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Yu Li
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
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Data-Mining Techniques: A New Approach to Identifying the Links among Hybrid Strains of Pleurotus with Culture Media. J Fungi (Basel) 2021; 7:jof7100882. [PMID: 34682303 PMCID: PMC8538256 DOI: 10.3390/jof7100882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/04/2021] [Accepted: 10/13/2021] [Indexed: 11/18/2022] Open
Abstract
In this study, a data set of mycelial and cultural characteristics of hybrid strains of Pleurotus ostreatus and Pleurotus djamor were analyzed using three data-mining techniques: the K-medoids clustering algorithm, PCA biplot and the association rules algorithm. The characteristics evaluated were as follows: maximum velocity; lag phase; biomass; and exopolysaccharides content in the cultivation of 50 hybrid strains of Pleurotus ostreatus and 50 hybrid strains of Pleurotus djamor. Different mixtures of culture media were used to supplement Ecuadorian agricultural products. Data of the parameters obtained in the experimental methods were grouped into four clusters, obtaining a presentation of the hybrid strains of Pleurotus with a higher relation to each characteristic measured. Data-mining tools showed the hybrid strains cultivated on solid-culture media (M1 = malt extract agar and rice flour) and liquid-culture media (L1 = maltose, yeast extract and rice flour) presented the highest mycelial and cultural characteristics. These results are good indicators to improve the industrial production of edible fungi by using rice flour in the cultivation, contributing to the mushroom market and circular economy.
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Interspecific hybridization between Ganoderma lingzhi and G. applanatum through protoplast fusion. World J Microbiol Biotechnol 2021; 37:114. [PMID: 34115218 DOI: 10.1007/s11274-021-03084-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 06/02/2021] [Indexed: 10/21/2022]
Abstract
Interspecific hybridization between Ganoderma lingzhi and G. applanatum was attempted through polyethylene glycol (PEG) induced fusion technique. The protoplast isolation procedure was simplified, and we obtained a significant number of protoplasts from both Ganoderma species. The number of protoplasts obtained was 5.27 ± 0.31 × 107/mL in G. lingzhi and 5.57 ± 0.49 × 106/mL in G. applanatum. Osmotic stabilizer NaCl (0.4 M) at pH 5.8 and enzymolysis time 3.5 h have supported high frequency of protoplast regeneration. G. lingzhi and G. applanatum regeneration frequency was 1.73 ± 0.04% and 0.23 ± 0.02%, respectively. 40% of PEG induced high number of protoplast fusion the regeneration frequency was 0.09% on a minimal medium. Two hundred fifty-two fusant colonies were isolated from the following four individual experiments. Among them, ten fusants showed the mycelial morphological difference compared to their parents and other fusant isolates. The fruiting body could be generated on oak sawdust and wheat bran substrate, and a few of them showed recombined morphology of the parental strains. The highest yield and biological efficacy (BE) were recorded in GF248, while least in GF244. The hybridity of the fusant was established based on mycelia, fruiting morphology, and PCR fingerprinting. ISSR and RAPD profile analysis of ten fusants and parents depicted that fusants contained polymorphic bands, which specified the rearrangement and deletion of DNA in the fusants. A Dendrogram was constructed based on the RAPD profile, and the clustering data exhibited two major clusters: cluster I included the G. lingzhi and Cluster II, including the G. applanatum and fusant lines. Total polysaccharide (α, β and total glucan) content was compared with fusants and parental strains. The present study highlighted the efficient methods for protoplast isolation from Ganoderma species. PEG-induced fusants showed high polymorphic frequency index, while the phenotypic characters showed high similarity to G. applanatum. A significant difference was observed in the mushroom yield and its total polysaccharide between the fusants and parental strains.
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Nutritional analysis and molecular characterization of hybrid mushrooms developed through intergeneric protoplast fusion between Pleurotus sajor-caju and Calocybe indica with the purpose to achieve improved strains. World J Microbiol Biotechnol 2021; 37:69. [PMID: 33748875 DOI: 10.1007/s11274-021-03032-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 03/08/2021] [Indexed: 10/21/2022]
Abstract
Two edible mushrooms Calocybe indica and Pleurotus sajor-caju were chosen as parent strains in this study to approach the concept of hybridization through the protoplast fusion technique. Protoplast fusion in presence of polyethylene glycol (PEG) was conducted between the parent strains and by further double selection screening method, six somatic hybrid lines were developed. Those fruit bodies of the hybrid lines showed phenotypic resemblance with Pleurotus sajor-caju when grown on paddy straw under favorable conditions. The hybridity of the newly developed somatic hybrid strains was established by barrage reaction, morphological traits, fruitbody parameter and, inter single sequence repeat (ISSR) profiling. One-way analysis of variance (ANOVA) was used for the analysis of phenotypic data of hybrid lines and parents. Five ISSR primers were used to generate 51 amplified DNA fragments ranged between 250 and 3000 bp in size in six hybrids and two parents with 90.19% polymorphism. Some of the hybrids contain some non-parental bands which indicate that recombination might happen in the hybrid genome hence confirming the hybridity of newly developed strains. The dendrogram was created using the Average Linkage (Between Groups) method based on ISSR profiling and genetic distance between parent-hybrids and hybrid-hybrid was analyzed by Jaccard's proximity matrix. A definite improvement in nutritional properties and biological activity was observed in the study. Due to ease in their cultivation, it can play a significant role in the rural economic development.
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He P, Yu M, Wang K, Cai Y, Li B, Liu W. Interspecific hybridization between cultivated morels Morchella importuna and Morchella sextelata by PEG-induced double inactivated protoplast fusion. World J Microbiol Biotechnol 2020; 36:58. [PMID: 32236741 DOI: 10.1007/s11274-020-02835-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 03/27/2020] [Indexed: 12/17/2022]
Abstract
The commercial production of Morchella mushrooms calls for urgent breeding of excellent varieties or strains with appropriate tools, such as protoplast fusion. However, the protoplast fusion in morels has not been studied. In this paper, interspecific hybridization between cultivated morels of M. importuna and M. sextelata by PEG-induced protoplast fusion was conducted. Apart from functional complementation of double inactivated protoplasts, the fusants were characterized by cultural and cultivated characters and molecular markers of random amplified polymorphic DNA (RAPD). The results suggested that the hybrids and their parents showed significant difference in their inoculum recovery time, mycelial growth rate, yield of cultivation and total amino acid content of ascocarps. Moreover, positive barrage reactions were observed between parental strains as well as between each parent and a hybrid line. A dendrogram created on the basis of RAPD fingerprints exhibited three major clusters, in which morel hybrids showed intra-cluster variations, M. sextelata #6 formed an out group, while M. importuna #4 was phylogenetically closer to morel hybrids. All the results demonstrated that real fusants were obtained in our study. Protoplast fusion may provide an ideal alternative for new strain selection, and thus will promote the healthy development of morel industry.
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Affiliation(s)
- Peixin He
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Miao Yu
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Ke Wang
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, China
| | - Yingli Cai
- Institute of Vegetable, Wuhan Academy of Agricultural Sciences, Wuhan, 430070, China
| | - Bin Li
- Zhengzhou Institute of Agriculture and Forestry, Zhengzhou, 450005, China
| | - Wei Liu
- Institute of Applied Mycology, Huazhong Agricultural University, Wuhan, 430070, China.
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Chakraborty I, Sen IK, Mondal S, Rout D, Bhanja SK, Maity GN, Maity P. Bioactive polysaccharides from natural sources: A review on the antitumor and immunomodulating activities. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.101425] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Liu P, Yuan J, Jiang Z, Wang Y, Weng B, Li G. A lower cadmium accumulating strain of Agaricus brasiliensis produced by 60Co-γ-irradiation. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108370] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Aguilar Doroteo L, Zárate Segura PB, Villanueva Arce R, Yáñez Fernández J, Garín Aguilar ME, Guadarrama Mendoza PC, Valencia Del Toro G. [Use of ITS and ISSR markers in the molecular characterisation of Pleurotus djamor hybrid strains]. Rev Iberoam Micol 2018; 35:49-55. [PMID: 29361378 DOI: 10.1016/j.riam.2017.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 05/11/2017] [Accepted: 06/12/2017] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Molecular characterisation of wild type Pleurotus species is important for germplasm conservation and its further use for genetic improvement. No molecular studies have been performed with monokaryons used for producing hybrid strains, either with the reconstituted strains obtained by pairing those monokaryons. The molecular characterisation of parental dikaryons, hybrid, and reconstituted strains as well as monokaryotic strains, is therefore of utmost importance. AIMS To carry out the molecular identification of Pleurotus djamor strains, i.e. dikaryotic wild type strains, hybrid strains, and the monokaryotic strains used for the hybrid formation. METHODS Five wild type strains of P. djamor from different states in Mexico were collected and molecularly identified by sequencing the ITS1-5.8-ITS2 region using ITS1 and ITS4 universal oligonucleotides. Four hybrid strains were obtained by pairing neohaplonts of two wild type strains selected. Six ISSR markers were used for the molecular characterisation of monokaryotic and dikaryotic strains. RESULTS Using the ITS markers, an amplified product of 700bp was obtained in five wild type strains, with a 99-100% similarity with P. djamor. A total of 95 fragments were obtained using the ISSR markers, with 99% of polymorphism. CONCLUSIONS Wild type strains were identified as P. djamor, and were clearly grouped with Mexican strains from other states of Mexico. ISSR markers allowed the generation of polymorphic bands in monokaryotic and dikaryotic strains, splitting both types of strains. The high degree of polymorphism indicates the genetic diversity of P. djamor, an advantage in mushroom production and in the improving of the species.
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Affiliation(s)
- Leticia Aguilar Doroteo
- Laboratorio de Cultivos Celulares, Sección de Estudios de Posgrado e Investigación, UPIBI, Instituto Politécnico Nacional, Ciudad de México, DF, México
| | - Paola Berenice Zárate Segura
- Laboratorio de Cultivos Celulares, Sección de Estudios de Posgrado e Investigación, UPIBI, Instituto Politécnico Nacional, Ciudad de México, DF, México
| | - Ramón Villanueva Arce
- Laboratorio de Cultivos Celulares, Sección de Estudios de Posgrado e Investigación, UPIBI, Instituto Politécnico Nacional, Ciudad de México, DF, México
| | - Jorge Yáñez Fernández
- Laboratorio de Cultivos Celulares, Sección de Estudios de Posgrado e Investigación, UPIBI, Instituto Politécnico Nacional, Ciudad de México, DF, México
| | - María Eugenia Garín Aguilar
- Laboratorio de Farmacobiología, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Los Reyes Iztacala, Tlalnepantla, México, México
| | | | - Gustavo Valencia Del Toro
- Laboratorio de Cultivos Celulares, Sección de Estudios de Posgrado e Investigación, UPIBI, Instituto Politécnico Nacional, Ciudad de México, DF, México.
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Mallick P, Chattaraj S, Sikdar SR. Molecular characterizations of somatic hybrids developed between Pleurotus florida and Lentinus squarrosulus through inter-simple sequence repeat markers and sequencing of ribosomal RNA-ITS gene. 3 Biotech 2017; 7:298. [PMID: 28884065 PMCID: PMC5587416 DOI: 10.1007/s13205-017-0931-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 08/28/2017] [Indexed: 12/01/2022] Open
Abstract
The 12 pfls somatic hybrids and 2 parents of Pleurotus florida and Lentinus squarrosulus were characterized by ISSR and sequencing of rRNA-ITS genes. Five ISSR primers were used and amplified a total of 54 reproducible fragments with 98.14% polymorphism among all the pfls hybrid populations and parental strains. UPGMA-based cluster exhibited a dendrogram with three major groups between the parents and pfls hybrids. Parent P. florida and L. squarrosulus showed different degrees of genetic distance with all the hybrid lines and they showed closeness to hybrid pfls 1m and pfls 1h, respectively. ITS1(F) and ITS4(R) amplified the rRNA-ITS gene with 611-867 bp sequence length. The nucleotide polymorphisms were found in the ITS1, ITS2 and 5.8S rRNA region with different number of bases. Based on rRNA-ITS sequence, UPGMA cluster exhibited three distinct groups between L. squarrosulus and pfls 1p, pfls 1m and pfls 1s, and pfls 1e and P. florida.
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Affiliation(s)
- Pijush Mallick
- Division of Plant Biology, Bose Institute, P-1/12, C.I.T., Scheme VII M, Kolkata, 700 054 India
- Present Address: Unidad Académica Sistemas Arrecifales, Instituto de Ciencias del Mar y Limnología, UNAM, Prol. Avenida Niños Heroes S/N, 77580 Puerto Morelos, Quintana Roo Mexico
| | - Shruti Chattaraj
- Division of Plant Biology, Bose Institute, P-1/12, C.I.T., Scheme VII M, Kolkata, 700 054 India
| | - Samir Ranjan Sikdar
- Division of Plant Biology, Bose Institute, P-1/12, C.I.T., Scheme VII M, Kolkata, 700 054 India
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Wang G, Zhu D, Xiong M, Zhang H, Liu Y. Construction and analysis of an intergeneric fusion from Pigmentiphaga sp. strain AAP-1 and Pseudomonas sp. CTN-4 for degrading acetamiprid and chlorothalonil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:13235-13244. [PMID: 27023810 DOI: 10.1007/s11356-016-6482-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 03/15/2016] [Indexed: 06/05/2023]
Abstract
Pseudomonas sp. CTN-4 degrades chlorothalonil (CTN) but not acetamiprid (AAP), and Pigmentiphaga sp. strain AAP-1 degrades AAP but not CTN. A functional strain, AC, was constructed through protoplast fusion of two parental strains (Pseudomonas sp. CTN-4 and Pigmentiphaga sp. strain AAP-1) in order to simultaneously improve the degradation efficiency of AAP and CTN. Fusant-AC with eight transfers on plates containing two antibiotics and CTN was obtained. For the purpose of identifying and confirming the genetic relationship between fusant-AC and its parents, randomly amplified polymorphic DNA (RAPD), scanning electron microscopy (SEM), and 16S ribosomal DNA (rDNA) analysis were performed. In toto, RAPD fingerprint analysis produced 194 clear bands with 9 primers, which not only had bands in common with strains CTN-4 and AAP-1, but also had its own novel fusant-specific bands. The genetic similarity indices between fusant-AC and parental strains CTN-4 and AAP-1 were 0.40 and 0.69, respectively. The result of SEM indicated that the cell morphology of fusant-AC differed from both its parents. The fusant strain AC possesses a strong capability for AAP and CTN degradation. At AAP concentration (50-300 mg L(-1)), the degradation was achieved within 5 h. At the initial dose of 50 and 100 mg L(-1) CTN, the percentages reached 96 and 91 % over a 36-h incubation period. The present study indicates that the protoplast-fusion technique may have possible applications in environmental pollution control.
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Affiliation(s)
- Guangli Wang
- College of Life Sciences, Huaibei Normal University, 235000, Huaibei, China
| | - Danfeng Zhu
- College of Life Sciences, Huaibei Normal University, 235000, Huaibei, China
| | - Minghua Xiong
- College of Life Sciences, Huaibei Normal University, 235000, Huaibei, China.
| | - Hui Zhang
- College of Life Sciences, Huaibei Normal University, 235000, Huaibei, China
| | - Yuan Liu
- College of Life Sciences, Huaibei Normal University, 235000, Huaibei, China.
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Mallick P, Sikdar SR. Restriction fragment length polymorphism and sequence analysis of rRNA-ITS region of somatic hybrids produced between Pleurotus florida and Lentinula edodes. ANN MICROBIOL 2016. [DOI: 10.1007/s13213-015-1121-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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15
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Ruthes AC, Smiderle FR, Iacomini M. Mushroom heteropolysaccharides: A review on their sources, structure and biological effects. Carbohydr Polym 2016; 136:358-75. [DOI: 10.1016/j.carbpol.2015.08.061] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/17/2015] [Accepted: 08/19/2015] [Indexed: 01/10/2023]
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16
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Improving biological efficiency of Pleurotus strain through protoplast fusion between P. ostreatus var. florida and P. djamor var. roseus. Food Sci Biotechnol 2015. [DOI: 10.1007/s10068-015-0226-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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17
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Production and molecular characterization of somatic hybrids between Pleurotus florida and Lentinula edodes. World J Microbiol Biotechnol 2014; 30:2283-93. [DOI: 10.1007/s11274-014-1652-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 04/11/2014] [Indexed: 10/25/2022]
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18
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Maity KK, Patra S, Dey B, Bhunia SK, Mandal S, Bahera B, Maiti TK, Sikdar SR, Islam SS. A β-glucan from the alkaline extract of a somatic hybrid (PfloVv5FB) of Pleurotus florida and Volvariella volvacea: structural characterization and study of immunoactivation. Carbohydr Res 2013; 370:13-8. [DOI: 10.1016/j.carres.2013.01.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 01/13/2013] [Accepted: 01/16/2013] [Indexed: 10/27/2022]
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19
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A fusant of Sphingomonas sp. GY2B and Pseudomonas sp. GP3A with high capacity of degrading phenanthrene. World J Microbiol Biotechnol 2013; 29:1685-94. [DOI: 10.1007/s11274-013-1331-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 03/20/2013] [Indexed: 10/27/2022]
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20
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The novel role of fungal intracellular laccase: used to screen hybrids between Hypsizigus marmoreus and Clitocybe maxima by protoplasmic fusion. World J Microbiol Biotechnol 2012; 28:2625-33. [PMID: 22806188 DOI: 10.1007/s11274-012-1072-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 04/25/2012] [Indexed: 10/28/2022]
Abstract
Laccase has been proved important in decolorization of Remazol Brilliant Blue R (RBBR), oxidation of 2, 2'-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt, lignin degradation and fruiting-body formation. The decolorization of RBBR by laccase was firstly used to screen protoplast fusants. Fusants were obtained by protoplast fusion between the strains of Hypsizigus marmoreus and Clitocybe maxima, and two fusants (IM1 and IIIM5) were screened on PDA medium containing RBBR. These fusants were significant higher in laccase activity than H. marmoreus, nearly 413 and 395 times, respectively. Their hyphal growth rates were also remarkable higher than H. marmoreus, nearly 1.5 and 1.4 times, respectively. Sodium dodecyl sulfate polyacrylamide gel electrophoresis analysis showed these fusants contained the laccase, and the molecular mass of the laccase was consistent with the laccase of C. maxima, nearly 62 kDa. The pileus color of the IM1 and IIIM5 also showed partial recombined characteristics comparing to the parental strains, while biological efficiency ratios were prominent higher than that of H. marmoreus, up to 14.58 and 10.87 %, respectively. Randomly amplified polymorphic DNA bands of fusants not only were similar to parental bands, but presented new non-parental bands. Using the Unweighted pair-group method together with mathematic averages method to gain a dendrogram, in which the fusants showed intra-cluster variations. Significantly, H. marmoreus was the dominant parent, while C. maxima were distant from the fusants. The differences among IM1, IIIM5 and H. marmoreus, and the similarities among IM1, IIIM5 and C. maxima indicated IM1 and IIIM5 were somatic hybrids of H. marmoreus and C. maxima. Accordingly, it is feasible to use laccase to screen fusants of H. marmoreus and C. maxima.
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21
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Feng L, Xiong M, Cheng X, Hou N, Li C. Construction and analysis of an intergeneric fusant able to degrade bensulfuron-methyl and butachlor. Biodegradation 2012; 24:47-56. [PMID: 22618300 DOI: 10.1007/s10532-012-9556-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 05/04/2012] [Indexed: 11/26/2022]
Abstract
Rhodococcus sp. BX2 degrades bensulfuron-methyl but not butachlor, and Acinetobacter sp. LYC-1 degrades butachlor but not bensulfuron-methyl. Functional strains were constructed through protoplast fusion of Rhodococcus sp. BX2 and Acinetobacter sp. LYC-1 to generate fusants with an improved ability to simultaneously degrade bensulfuron-methyl and butachlor. Initial identification and stability tests of the fusants were performed. Three fusants with eighth transfer on plates containing two antibiotics and two herbicides were obtained. F1 also grew well in an inorganic salt solution containing bensulfuron-methyl and butachlor. F1 was characterized by its parents' morphological and physio-biochemical features. F1 not only had bands in common with BX2 and LYC-1, but also had its own specific bands analyzed by Random Amplified Polymorphic DNA. The genetic similarity indices between F1 and BX2 and F1 and LYC-1 were 0.507 and 0.470, respectively. The percentages bensulfuron-methyl and butachlor degradation by F1 in an inorganic salt solution supplemented with 100 mg/L bensulfuron-methyl and 100 mg/L butachlor were 65.35 and 62.41 %, respectively, and the percentages in soil contaminated with 10 mg/kg bensulfuron-methyl and 10 mg/kg butachlor with an inoculum size of 5 % at 34 °C and at a pH of 7.5 after 35 days were 63.74 and 61.53 %, respectively. It was demonstrated that F1 could simultaneously degrade bensulfuron-methyl and butachlor.
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Affiliation(s)
- Liping Feng
- College of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
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22
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Glucans from alkaline extract of a hybrid mushroom (backcross mating between PfloVv12 and Volvariella volvacea): structural characterization and study of immunoenhancing and antioxidant properties. Carbohydr Res 2012; 347:107-13. [DOI: 10.1016/j.carres.2011.10.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 10/26/2011] [Accepted: 10/28/2011] [Indexed: 11/24/2022]
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23
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Isolation and characterization of polysaccharides of a hybrid mushroom (backcross mating between PfloVv12 and Volvariella volvacea). Carbohydr Res 2011; 346:2451-6. [DOI: 10.1016/j.carres.2011.08.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 08/17/2011] [Accepted: 08/18/2011] [Indexed: 11/18/2022]
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24
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Patra S, Maity KK, Bhunia SK, Dey B, Mandal S, Maiti TK, Sikdar SR, Islam SS. Structural characterization and study of immunoenhancing properties of heteroglycan isolated from a somatic hybrid mushroom (PfloVv1aFB) of Pleurotus florida and Volvariella volvacea. Carbohydr Res 2011; 346:1967-72. [DOI: 10.1016/j.carres.2011.06.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 05/21/2011] [Accepted: 06/08/2011] [Indexed: 10/18/2022]
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25
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Das D, Mondal S, Roy SK, Maiti D, Bhunia B, Maiti TK, Sikdar SR, Islam SS. A (1→6)-β-glucan from a somatic hybrid of Pleurotus florida and Volvariella volvacea: isolation, characterization, and study of immunoenhancing properties. Carbohydr Res 2010; 345:974-8. [DOI: 10.1016/j.carres.2010.02.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Revised: 02/23/2010] [Accepted: 02/25/2010] [Indexed: 10/19/2022]
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26
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Intergeneric protoplast fusion between Calocybe indica (milky mushroom) and Pleurotus florida aids in the qualitative and quantitative improvement of sporophore of the milky mushroom. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-0162-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Zhang XX, Jia HY, Wu B, Zhao DY, Li WX, Cheng SP. Genetic analysis of protoplast fusant Xhhh constructed for pharmaceutical wastewater treatment. BIORESOURCE TECHNOLOGY 2009; 100:1910-1914. [PMID: 19027290 DOI: 10.1016/j.biortech.2008.10.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2008] [Revised: 10/10/2008] [Accepted: 10/12/2008] [Indexed: 05/27/2023]
Abstract
In order to analyse genetic relationships between functional strain Xhhh previously constructed through protoplast fusion for pharmaceutical wastewater treatment and its parents, random amplification polymorphic DNA (RAPD) and polymerase chain reaction (PCR) were used to investigate genetic similarities among the strains based on genome and functional genes analyses. A total of 739 clear and consistent bands were produced in the RAPD fingerprint analysis with 40 primers. The genetic similarity indices between Xhhh and parental strains PC (Phanerochaete chrysosporium), SC (Saccharomyces cerevisiae) and XZ (native bacterium Bacillus sp.) were 36.21%, 37.73% and 37.48%, respectively. With PCR amplification and DNA sequencing, Xhhh was found containing functional genes of mnp and lip from PC, FLO1 from SC and 16S rDNA fragments from XZ. Experimental results of genetic analyses were in accordance with Xhhh biochemical and phenotypic characteristics, and protoplast fusion technique is considered as a promising technique in environmental pollution control.
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Affiliation(s)
- Xu-Xiang Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, 22, Hankou Road, Nanjing University, Nanjing, Jiangsu 210093, China
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28
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Identification of protoplast fusion strain Fhhh by randomly amplified polymorphic DNA. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-9999-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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