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Wang K, Zen L, Sheng L, Lu F, Lin Q, Li Y, Tong H. Silencing PsASH2 affects embryo development in the cotton mealybug. INSECT MOLECULAR BIOLOGY 2025. [PMID: 40448281 DOI: 10.1111/imb.13003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2025] [Accepted: 04/24/2025] [Indexed: 06/02/2025]
Abstract
Mealybugs are highly aggressive pests that infest various plants and cause substantial economic losses. Histone lysine methyltransferases (KMT) are evolutionarily conserved and proposed to be essential in early embryo development in animals. However, few KMTs have been reported in mealybugs. Here, we identified a novel KMT gene, PsASH2, in the cotton mealybug, Phenacoccus solenopsis Tinsley. This gene was highly expressed in the ovary of female adults. Through RNA interference (RNAi) of PsASH2 by dsRNA microinjection, we found a reduction in the number of male embryos and total embryos in the ovaries of pregnant females. Continuous downregulation of PsASH2 in mated females until their death resulted in few changes in sex ratio but significant decreases in the number of both male and female offspring. Therefore, we believe that PsASH2 plays essential roles in embryo survival for both sexes of the cotton mealybug which may provide a potential target gene for the management of cotton mealybug by disrupting embryo development.
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Affiliation(s)
- Kaixin Wang
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Lingqi Zen
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Lilu Sheng
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Feihuang Lu
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Qianjin Lin
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Yifan Li
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Haojie Tong
- College of Life Sciences, China Jiliang University, Hangzhou, China
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Badenes-Pérez FR. Plant-Insect Interactions: Host Plant Resistance, Biological Control, and Pollination. PLANTS (BASEL, SWITZERLAND) 2025; 14:1488. [PMID: 40431053 PMCID: PMC12115269 DOI: 10.3390/plants14101488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/12/2025] [Accepted: 05/14/2025] [Indexed: 05/29/2025]
Abstract
The evolving field of plant-insect interactions impacts basic and applied fields of plant sciences, entomology, and agronomy [...].
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Ricupero M, Porcu E, Russo A, Zappalà L, Siscaro G. New Records of Phenacoccus solenopsis Natural Enemies in Europe and Taxonomic Additions on Anagyrus matritensis. INSECTS 2025; 16:169. [PMID: 40003799 PMCID: PMC11856743 DOI: 10.3390/insects16020169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2025] [Revised: 01/28/2025] [Accepted: 02/03/2025] [Indexed: 02/27/2025]
Abstract
The cotton mealybug Phenacoccus solenopsis (Hemiptera: Pseudococcidae) is a polyphagous invasive species native to America and considered one of the major cotton pests in Asia. It is currently threatening horticultural and ornamental protected crops in Mediterranean countries. Due to ecological and environmental concerns, the conventional chemical control of P. solenopsis in new areas of introduction is being replaced by exploring the potential of indigenous natural enemies as a sustainable biological control tool. After P. solenopsis introduction in Sicily (Italy), field surveys were conducted on native natural enemies attacking the mealybug to select promising biocontrol agents for field applications. For the first time, Aenasius arizonensis (Hymenoptera: Encyrtidae) was reported in Europe, and the native Anagyrus matritensis (Hymenoptera: Encyrtidae) was recorded in association with P. solenopsis. The two parasitoid species were identified by morphological features and molecularly using a portion of the mitochondrial cytochrome oxidase subunit I (mtCOI) gene. Because of missing information, additional morphological features were provided for the morphological identification of A. matritensis. In addition, the generalist predators Cryptolaemus montrouzieri, Hippodamia variegata and Parexochomus nigripennis (Coleoptera: Coccinellidae) were also recorded attacking the invasive mealybug.
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Affiliation(s)
- Michele Ricupero
- Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy; (A.R.); (L.Z.); (G.S.)
| | - Emanuele Porcu
- Department of Agriculture, University of Reggio Calabria, Feo di Vito, 89122 Reggio Calabria, Italy;
| | - Agatino Russo
- Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy; (A.R.); (L.Z.); (G.S.)
| | - Lucia Zappalà
- Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy; (A.R.); (L.Z.); (G.S.)
| | - Gaetano Siscaro
- Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy; (A.R.); (L.Z.); (G.S.)
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Harbi A, Abbes K, Chermiti B, Suma P. Life History Parameters of the Invasive Cotton Mealybug Phenacoccus solenopsis on Tomato at Four Constant Temperatures. INSECTS 2024; 16:16. [PMID: 39859597 PMCID: PMC11765583 DOI: 10.3390/insects16010016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2024] [Revised: 12/20/2024] [Accepted: 12/27/2024] [Indexed: 01/27/2025]
Abstract
The cotton mealybug, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae), is an invasive polyphagous pest that has been reported in several tomato-producing Mediterranean countries. However, information regarding the impact of temperature variations on its potential damage and population dynamics on this crop is limited. The effect of four temperatures (20 ± 1 °C, 25 ± 1 °C, 30 ± 1 °C and 35 ± 1 °C) on the development, reproduction, and population growth parameters of P. solenopsis on tomatoes under controlled laboratory conditions was investigated using age-stage two-sex life tables. The increase in temperature caused a significant decrease in the developmental periods of all instars except eggs. The shortest durations of the life cycle (29.58 ± 0.28 days for females and 13.91 ± 0.25 days for males), the adult preoviposition period (APOP), and the total preoviposition period (TPOP) (APOP: 7.78 ± 0.09 days and TPOP: 18.33 ± 0.13 days) were obtained at 35 ± 1 °C. Fecundity varied with temperature, and the highest value was recorded at 30 ± 1 °C (183.29 ± 7.13 eggs/female). The highest average net reproduction rate (R0) (154.24 ± 14.681 offspring/female), intrinsic rate of increase (r) (0.222 ± 0.0036 d-1), and finite rate of increase (λ) (1.248 ± 0.00495 d-1) were observed at 35 ± 1 °C. A simulation of population increase and structure under different temperatures over a period of 90 days revealed that the greatest expected population size was at 35 ± 1 °C, with the completion of four overlapping generations. The data from this study provide valuable information for adapted pest management approaches against P. solenopsis on tomato crops.
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Affiliation(s)
- Ahlem Harbi
- Department of Biological Sciences and Plant Protection, High Agronomic Institute of Chott-Mariem, University of Sousse, Chott-Mariem 4042, Tunisia; (K.A.); (B.C.)
- Laboratory of Agrobiodiversity and Ecotoxicology LR21AGR02, University of Sousse, Sousse 4000, Tunisia
| | - Khaled Abbes
- Department of Biological Sciences and Plant Protection, High Agronomic Institute of Chott-Mariem, University of Sousse, Chott-Mariem 4042, Tunisia; (K.A.); (B.C.)
- Laboratory of Agrobiodiversity and Ecotoxicology LR21AGR02, University of Sousse, Sousse 4000, Tunisia
| | - Brahim Chermiti
- Department of Biological Sciences and Plant Protection, High Agronomic Institute of Chott-Mariem, University of Sousse, Chott-Mariem 4042, Tunisia; (K.A.); (B.C.)
| | - Pompeo Suma
- Department of Agriculture, Food and Environments, University of Catania, I-95123 Catania, Italy;
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Li Z, Tong H, Ni M, Zheng Y, Yang X, Tan Y, Li Z, Jiang M. An at-leg pellet and associated Penicillium sp. provide multiple protections to mealybugs. Commun Biol 2024; 7:580. [PMID: 38755282 PMCID: PMC11099121 DOI: 10.1038/s42003-024-06287-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 05/03/2024] [Indexed: 05/18/2024] Open
Abstract
Beneficial fungi are well known for their contribution to insects' adaptation to diverse habitats. However, where insect-associated fungi reside and the underlying mechanisms of insect-fungi interaction are not well understood. Here, we show a pellet-like structure on the legs of mealybugs, a group of economically important insect pests. This at-leg pellet, formed by mealybugs feeding on tomato but not by those on cotton, potato, or eggplant, originates jointly from host secretions and mealybug waxy filaments. A fungal strain, Penicillium citrinum, is present in the pellets and it colonizes honeydew. P. citrinum can inhibit mealybug fungal pathogens and is highly competitive in honeydew. Compounds within the pellets also have inhibitory activity against mealybug pathogens. Further bioassays suggest that at-leg pellets can improve the survival rate of Phenacoccus solenopsis under pathogen pressure, increase their sucking frequency, and decrease the defense response of host plants. Our study presents evidences on how a fungi-associated at-leg pellet provides multiple protections for mealybugs through suppressing pathogens and host defense, providing new insights into complex insect × fungi × plant interactions and their coevolution.
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Affiliation(s)
- Zicheng Li
- Institute of Insect Sciences, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture and Rural Affairs of the People's Republic of China, State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
| | - Haojie Tong
- Institute of Insect Sciences, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture and Rural Affairs of the People's Republic of China, State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
- College of Life Sciences, China Jiliang University, Hangzhou, China
| | - Meihong Ni
- Institute of Insect Sciences, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture and Rural Affairs of the People's Republic of China, State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
| | - Yiran Zheng
- Institute of Insect Sciences, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture and Rural Affairs of the People's Republic of China, State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
| | - Xinyi Yang
- Institute of Insect Sciences, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture and Rural Affairs of the People's Republic of China, State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
| | - Yumei Tan
- Institute of Insect Sciences, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture and Rural Affairs of the People's Republic of China, State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
| | - Zihao Li
- Institute of Insect Sciences, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture and Rural Affairs of the People's Republic of China, State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
| | - Mingxing Jiang
- Institute of Insect Sciences, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture and Rural Affairs of the People's Republic of China, State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China.
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Abbes K, Harbi A, Guerrieri E, Chermiti B. Using Age-Stage Two-Sex Life Tables to Assess the Suitability of Three Solanaceous Host Plants for the Invasive Cotton Mealybug Phenacoccus solenopsis Tinsley. PLANTS (BASEL, SWITZERLAND) 2024; 13:1381. [PMID: 38794451 PMCID: PMC11125115 DOI: 10.3390/plants13101381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024]
Abstract
Phenacoccus solenopsis Tinsley (Hemiptera: Coccomorpha: Pseudococcidae), the cotton mealybug, is an invasive polyphagous species that has been extending its geographic range, posing a conspicuous threat to many Mediterranean crops of economic importance. These include three species of Solanaceae, namely Solanum lycopersicum L. (tomato), Solanum tuberosum L. (potato) and Solanum melongena L. (eggplant) all of which are economically important worldwide. In this study, we used age-stage two-sex life tables to investigate the suitability of these three plant species as hosts for P. solenopsis and to calculate pest fitness, life history parameters and population projection parameters. All tested host plants that were suitable for the pest and eggplant host plant induced a higher fecundity (276.50 ± 10.78 eggs/female), net reproductive rate (R0) (243.32 ± 15.83 offspring/female) and finite rate of increase (λ) (1.18 ± 0.0043 day-1) and more extended adult longevity (males: 6.50 ± 0.34 days and females: 24.15 ± 0.50 days). Population growth predictions over a period of 90 days of infestation, commencing with an initial population of 10 eggs showed that adult population size was 674,551 on tomato, 826,717 on potato and 355,139 on eggplant. Our data on plant host preference of P. solenopsis will aid the development of appropriate management strategies and achieve successful control of this invasive pest in key Mediterranean crop systems.
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Affiliation(s)
- Khaled Abbes
- Department of Biological Sciences and Plant Protection, High Agronomic Institute of Chott-Mariem, University of Sousse, Sousse 4042, Tunisia; (K.A.); (A.H.)
| | - Ahlem Harbi
- Department of Biological Sciences and Plant Protection, High Agronomic Institute of Chott-Mariem, University of Sousse, Sousse 4042, Tunisia; (K.A.); (A.H.)
| | - Emilio Guerrieri
- Institute for Sustainable Plant Protection, National Research Council of Italy, URT IPSP-DISIT, 15121 Alessandria, Italy;
| | - Brahim Chermiti
- Department of Biological Sciences and Plant Protection, High Agronomic Institute of Chott-Mariem, University of Sousse, Sousse 4042, Tunisia; (K.A.); (A.H.)
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7
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Zhang Y, Pan Y, Bai X, Sun W, Zhou X, Dong Q, Wang H, Zhang Y, Bai W, Zhang W. Deciphering the impact of greenhouse pesticides on hepatic metabolism profile: Toxicity experiments on HepG2 cells using chlorpyrifos and emamectin benzoate. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 275:116230. [PMID: 38552389 DOI: 10.1016/j.ecoenv.2024.116230] [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: 10/08/2023] [Revised: 01/28/2024] [Accepted: 03/14/2024] [Indexed: 04/12/2024]
Abstract
Epidemiological evidence on the health effects of pesticide exposure among greenhouse workers is limited, and the mechanisms are lacking. Building upon our team's previous population study, we selected two pesticides, CPF and EB, with high detection rates, based on the theoretical foundation that the liver serves as a detoxifying organ, we constructed a toxicity model using HepG2 cells to investigate the impact of individual or combined pesticide exposure on the hepatic metabolism profile, attempting to identify targeted biomarkers. Our results showed that CPF and EB could significantly affect the survival rate of HepG2 cells and disrupt their metabolic profile. There were 117 metabolites interfered by CPF exposure, which mainly affected ABC transporter, biosynthesis of amino acids, center carbon metabolism in cancer, fatty acid biosynthesis and other pathways, 95 metabolites interfered by EB exposure, which mainly affected center carbon metabolism in cancer, HIF-1 signaling pathway, valine, leucine and isoleucine biosynthesis, fatty acid biosynthesis and other pathways. The cross analysis and further biological experiments confirmed that CPF and EB pesticide exposure may affect the HIF-1 signaling pathway and valine, leucine and isoleucine biosynthesis in HepG2 cells, providing reliable experimental evidence for the prevention and treatment of liver damage in greenhouse workers.
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Affiliation(s)
- Yingying Zhang
- Shanxi Key Laboratory of Environmental Health Impairment and Prevention, NHC Key Laboratory of Pneumoconiosis, MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, 030001, China
| | - Yun Pan
- Shanxi Key Laboratory of Environmental Health Impairment and Prevention, NHC Key Laboratory of Pneumoconiosis, MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, 030001, China
| | - Xiangyu Bai
- Shanxi Key Laboratory of Environmental Health Impairment and Prevention, NHC Key Laboratory of Pneumoconiosis, MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, 030001, China
| | - Wen Sun
- Shanxi Key Laboratory of Environmental Health Impairment and Prevention, NHC Key Laboratory of Pneumoconiosis, MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, 030001, China
| | - Xingfan Zhou
- Training Academy for Executive Leadership, Ministry of Emergency Mangement, Beijing 100054, China
| | - Qing Dong
- Changzhi maternal and child health care hospital, Shanxi 030001, China
| | - Hui Wang
- Changzhi maternal and child health care hospital, Shanxi 030001, China
| | - Yuanbao Zhang
- Beijing Key Laboratory of Occupational Safety and Health, Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing 100054, China
| | - Wenlin Bai
- Shanxi Key Laboratory of Environmental Health Impairment and Prevention, NHC Key Laboratory of Pneumoconiosis, MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, 030001, China
| | - Wenping Zhang
- Shanxi Key Laboratory of Environmental Health Impairment and Prevention, NHC Key Laboratory of Pneumoconiosis, MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, 030001, China.
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Cui S, Zhang H, Liu L, Lyu W, Xu L, Zhang Z, Han Y. Hypervolume Niche Dynamics and Global Invasion Risk of Phenacoccus solenopsis under Climate Change. INSECTS 2024; 15:250. [PMID: 38667380 PMCID: PMC11050190 DOI: 10.3390/insects15040250] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024]
Abstract
As a globally invasive quarantine pest, the cotton mealybug, Phenacoccus solenopsis, is spreading rapidly, posing serious threats against agricultural and forestry production and biosecurity. In recent years, the niche conservatism hypothesis has been widely debated, which is particularly evident in invasive biology research. Identifying the niche dynamics of P. solenopsis, as well as assessing its global invasion risk, is of both theoretical and practical importance. Based on 462 occurrence points and 19 bioclimatic variables, we used n-dimensional hypervolume analysis to quantify the multidimensional climatic niche of this pest in both its native and invasive ranges. We examined niche conservatism and further optimized the MaxEnt model parameters to predict the global invasion risk of P. solenopsis under both current and future climate conditions. Our findings indicated that the niche hypervolume of this pest in invasive ranges was significantly larger than that in its native ranges, with 99.45% of the niche differentiation contributed by niche expansion, with the remaining less than 1% explained by space replacement. Niche expansion was most evident in Oceania and Eurasia. The area under the receiver operating characteristic curve (0.83) and true skill statistic (0.62) indicated the model's robust performance. The areas of suitable habitats for P. solenopsis are increasing significantly and the northward spread is obvious in future climate change scenarios. North Africa, northern China, Mediterranean regions, and northern Europe had an increased invasion risk of P. solenopsis. This study provided scientific support for the early warning and control of P. solenopsis.
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Affiliation(s)
- Shaopeng Cui
- College of Forestry, Shanxi Agricultural University, Jinzhong 030801, China; (S.C.); (Z.Z.)
- Shanxi Dangerous Forest Pest Inspection and Identification Center, Jinzhong 030801, China
| | - Huisheng Zhang
- College of Forestry, Shanxi Agricultural University, Jinzhong 030801, China; (S.C.); (Z.Z.)
| | - Lirui Liu
- College of Forestry, Shanxi Agricultural University, Jinzhong 030801, China; (S.C.); (Z.Z.)
| | - Weiwei Lyu
- College of Forestry, Shanxi Agricultural University, Jinzhong 030801, China; (S.C.); (Z.Z.)
| | - Lin Xu
- College of Forestry, Shanxi Agricultural University, Jinzhong 030801, China; (S.C.); (Z.Z.)
| | - Zhiwei Zhang
- College of Forestry, Shanxi Agricultural University, Jinzhong 030801, China; (S.C.); (Z.Z.)
- Shanxi Dangerous Forest Pest Inspection and Identification Center, Jinzhong 030801, China
| | - Youzhi Han
- College of Forestry, Shanxi Agricultural University, Jinzhong 030801, China; (S.C.); (Z.Z.)
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Zhao J, Liu Y, Xu S, Wang J, Zhang Z, Wang MQ, Turlings TCJ, Zhang P, Zhou A. Mealybug salivary microbes inhibit induced plant defenses. PEST MANAGEMENT SCIENCE 2023; 79:4034-4047. [PMID: 37287215 DOI: 10.1002/ps.7600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/03/2023] [Accepted: 06/08/2023] [Indexed: 06/09/2023]
Abstract
BACKGROUND Phenacoccus solenopsis is a polyphagous invasive mealybug that caused serious damage to crops worldwide. Phloem-sucking hemipterans are known to carry symbiotic microbes in their saliva. However, the role of salivary bacteria of P. solenopsis in modulating plant defenses remains limited. Exploring the impact of salivary bacteria on plant defense responses will contribute to the development of new targets for efficient control of invasive mealybugs. RESULTS Salivary bacteria of the invasive mealybug P. solenopsis can suppress herbivore-induced plant defenses and thus enhance mealybug fitness. Mealybugs treated with an antibiotic showed decreased weight gain, fecundity and survival. Untreated mealybugs suppressed jasmonic acid (JA)-regulated defenses but activated salicylic acid (SA)-regulated defenses in cotton plants. In contrast, antibiotic-treated mealybugs triggered JA-responsive gene expression and JA accumulation, and showed shortened phloem ingestion. Reinoculating antibiotic-treated mealybugs with Enterobacteriaceae or Stenotrophomonas cultivated from mealybug saliva promoted phloem ingestion and fecundity, and restored the ability of mealybugs to suppress plant defenses. Fluorescence in situ hybridization visualization revealed that Enterobacteriaceae and Stenotrophomonas colonize salivary glands and are secreted into the mesophyll cells and phloem vessels. Exogenous application of the bacterial isolates to plant leaves inhibited JA-responsive gene expression and activated SA-responsive gene expression. CONCLUSION Our findings imply that symbiotic bacteria in the saliva of the mealybug play an important role in manipulating herbivore-induced plant defenses, enabling this important pest to evade induced plant defenses and promoting its performance and destructive effects on crops. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Jing Zhao
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yongheng Liu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Shouye Xu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jialu Wang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zan Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
| | - Man-Qun Wang
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ted C J Turlings
- Laboratory of Fundamental and Applied Research in Chemical Ecology, Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
| | - Pengjun Zhang
- School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Aiming Zhou
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
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Wen X, Chen Z, Yang Z, Wang M, Jin S, Wang G, Zhang L, Wang L, Li J, Saeed S, He S, Wang Z, Wang K, Kong Z, Li F, Zhang X, Chen X, Zhu Y. A comprehensive overview of cotton genomics, biotechnology and molecular biological studies. SCIENCE CHINA. LIFE SCIENCES 2023; 66:2214-2256. [PMID: 36899210 DOI: 10.1007/s11427-022-2278-0] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/09/2023] [Indexed: 03/12/2023]
Abstract
Cotton is an irreplaceable economic crop currently domesticated in the human world for its extremely elongated fiber cells specialized in seed epidermis, which makes it of high research and application value. To date, numerous research on cotton has navigated various aspects, from multi-genome assembly, genome editing, mechanism of fiber development, metabolite biosynthesis, and analysis to genetic breeding. Genomic and 3D genomic studies reveal the origin of cotton species and the spatiotemporal asymmetric chromatin structure in fibers. Mature multiple genome editing systems, such as CRISPR/Cas9, Cas12 (Cpf1) and cytidine base editing (CBE), have been widely used in the study of candidate genes affecting fiber development. Based on this, the cotton fiber cell development network has been preliminarily drawn. Among them, the MYB-bHLH-WDR (MBW) transcription factor complex and IAA and BR signaling pathway regulate the initiation; various plant hormones, including ethylene, mediated regulatory network and membrane protein overlap fine-regulate elongation. Multistage transcription factors targeting CesA 4, 7, and 8 specifically dominate the whole process of secondary cell wall thickening. And fluorescently labeled cytoskeletal proteins can observe real-time dynamic changes in fiber development. Furthermore, research on the synthesis of cotton secondary metabolite gossypol, resistance to diseases and insect pests, plant architecture regulation, and seed oil utilization are all conducive to finding more high-quality breeding-related genes and subsequently facilitating the cultivation of better cotton varieties. This review summarizes the paramount research achievements in cotton molecular biology over the last few decades from the above aspects, thereby enabling us to conduct a status review on the current studies of cotton and provide strong theoretical support for the future direction.
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Affiliation(s)
- Xingpeng Wen
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
- College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Zhiwen Chen
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, University of CAS, Chinese Academy of Sciences, Shanghai, 200032, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, 572025, China
| | - Zuoren Yang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Maojun Wang
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuangxia Jin
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Guangda Wang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Li Zhang
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China
| | - Lingjian Wang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, University of CAS, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Jianying Li
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Sumbul Saeed
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shoupu He
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Zhi Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China
| | - Kun Wang
- College of Life Sciences, Wuhan University, Wuhan, 430072, China
| | - Zhaosheng Kong
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
- Shanxi Agricultural University, Jinzhong, 030801, China.
| | - Fuguang Li
- State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
| | - Xianlong Zhang
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Xiaoya Chen
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, University of CAS, Chinese Academy of Sciences, Shanghai, 200032, China.
- Hainan Yazhou Bay Seed Laboratory, Sanya, 572025, China.
| | - Yuxian Zhu
- Institute for Advanced Studies, Wuhan University, Wuhan, 430072, China.
- College of Life Sciences, Wuhan University, Wuhan, 430072, China.
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11
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Wang L, Liu X, Ruan Y. Sex-specific differences in symbiotic microorganisms associated with an invasive mealybug ( Phenacoccus solenopsis Tinsley) based on 16S ribosomal DNA. PeerJ 2023; 11:e15843. [PMID: 37601250 PMCID: PMC10434102 DOI: 10.7717/peerj.15843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/12/2023] [Indexed: 08/22/2023] Open
Abstract
The ability of Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) to utilize a wide range of host plants is closely related to the symbiotic bacteria within its body. This study investigated the diversity of symbiotic microorganisms associated with the sap-sucking hemipteran insect. Using deep sequencing of the 16S rDNA gene and subsequent analysis with the Qiime software package, we constructed a comprehensive library of bacterial operational taxonomic units (OTUs). We compared the microbial communities of female and male adult mealybugs. Our results showed significant differences in bacterial composition between the sexes, with Proteobacteria, Firmicutes, and Bacteroidetes being the dominant phyla in both female and male mealybugs. These results suggest that the diverse assemblage of symbiotic bacteria in P. solenopsis may be critical in enabling this insect to utilize a wide range of host plants by facilitating carbohydrate digestion and energy uptake.
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Affiliation(s)
- Lu Wang
- Zhejiang Normal University, College of Life Sciences, Jinhua, Zhejiang, China
| | - Xia Liu
- Zhejiang Normal University, College of Life Sciences, Jinhua, Zhejiang, China
| | - Yongming Ruan
- Zhejiang Normal University, College of Life Sciences, Jinhua, Zhejiang, China
- Key Lab of Wildlife Biotechnology and Conservation and Utilization of Zhejiang Province, Jinhua, Zhejiang, China
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12
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Shankarganesh K, Ricupero M, Sabtharishi S. Field evolved insecticide resistance in the cotton mealybug Phenacoccus solenopsis and its direct and indirect impacts on the endoparasitoid Aenasius arizonensis. Sci Rep 2022; 12:16764. [PMID: 36202878 PMCID: PMC9537310 DOI: 10.1038/s41598-022-20779-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/19/2022] [Indexed: 11/17/2022] Open
Abstract
Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae) an invasive mealybug on cotton is primarily controlled by conventional insecticides. An endoparasitoid Aenasius arizonenesis (Girault) (Hymenoptera: Encyrtidae) is a potential biocontrol agent of this pest. We assessed the susceptibility in field populations of P. solenopsis and A. arizonensis to commonly used insecticides: profenofos, imidacloprid and thiodicarb. Reproductive traits of the parasitoid and Environmental Risk Assessment (ERA) parameters viz., Reduction coefficient, Descriptive analysis, Risk Index (RI), Selectivity ratio and Hazard quotient were measured to assess the direct and indirect effects of these insecticides on the parasitoid. Probit analysis revealed heterogeneity in the insecticide resistance development for both the cotton mealybug and its parasitoid. The field populations of P. solenopsis exhibited resistance to profenofos (18.87-59.86 folds) and thiodicarb (20.07 folds) and susceptibility to imidacloprid. Development of resistance to profenofos was observed in field populations of A. arizonensis. Exposure to lethal doses of imidacloprid and profenofos caused a reduction in parasitization (19-23%) and adult emergence (62-69%) of the parasitoid. Profenofos, thiodicarb and imidacloprid were found to be hazardous, non-selective and harmful to the endoparasitoid, A. arizonensis. There is an urgent need for optimizing insecticide applications for sustainable management of this invasive mealybug in cotton.
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Affiliation(s)
- Karuppan Shankarganesh
- ICAR-Central Institute for Cotton Research, Regional Station, Coimbatore, 641 003, India
| | - Michele Ricupero
- Department of Agriculture, Food and Environment, University of Catania, Via Santa Sofia, 100, 95123, Catania, Italy
| | - Subramanian Sabtharishi
- Dr. Subramanian Sabtharishi Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India.
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13
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Yaseen A, Arif MJ, Majeed W, Eed EM, Naeem M, Mushtaq S, Qamar SUR, Nazir K. Determination of hormoligosis of organophosphate insecticides against Phenacoccus solenopsis. BRAZ J BIOL 2022; 82:e261971. [DOI: 10.1590/1519-6984.261971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/17/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract Cotton mealybug is a highly invasive pest of agricultural crops worldwide. Major agriculturists most rely on the use of insecticides for the control of pesticides. So, the indiscriminate use of insecticides leads to resistance development in recent years. For this purpose, an experiment was conducted using different concentrations of the three insecticides (profenfos chlorpyrifos and triazophos) to check the hormoligosis effects against cotton mealybug (CMB) in laboratory conditions. Investigation of variations for % mortality of adults of CMB after three days revealed that all treatments had statistically significant (P ˂ 0.05). The highest mortality was observed at the highest concentrations of profenofos 2.4% (38.55%). After 7 days, all the treatments were significant with difference in means (P ˂ 0.05). The highest mortality was recorded at the highest dilution of pesticide profenofos 2.4% (77.11%). The values of fecundity and longevity exposed a valid difference among treatments (P ˂ 0.05). Maximum fecundity was observed at the concentration 2.4% (181.41%) and longevity showed (38.46%). The highest mortality was observed at a concentration of triazophos 4% (27.98%). For chlorpyriphos the highest mortality was examined at concentration 4% (24.79%). The fecundity showed a statistically significant difference for different concentrations of triazophos and chlorpyriphos (P ˂ 0.05). The results of the recent study provide valuable information regarding the selection of insecticides and hormoligosis effects. The study can be helpful in the implications of integrated pest management of P. solenopsis.
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Affiliation(s)
- A. Yaseen
- University of Agriculture Faisalabad, Pakistan
| | | | - W. Majeed
- University of Agriculture Faisalabad, Pakistan
| | | | | | - S. Mushtaq
- Government College for Women University, Pakistan
| | | | - K. Nazir
- University of Mianwali, Pakistan
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14
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Duke SO. Success, despite another plague year. PEST MANAGEMENT SCIENCE 2022; 78:7-11. [PMID: 34874600 DOI: 10.1002/ps.6708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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15
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Idrees A, Qadir ZA, Akutse KS, Afzal A, Hussain M, Islam W, Waqas MS, Bamisile BS, Li J. Effectiveness of Entomopathogenic Fungi on Immature Stages and Feeding Performance of Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) Larvae. INSECTS 2021; 12:1044. [PMID: 34821844 PMCID: PMC8624455 DOI: 10.3390/insects12111044] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 11/16/2022]
Abstract
Maize is a major staple crop in China, and the sustainable productivity of this primary crop has been recently threatened by fall armyworm (FAW), Spodoptera frugiperda, invasion. The five fungal isolates, Aspergillus sp. BM-3 and SE-2-1, Cladosporium tenuissimum SE-10, Penicillium citrinum CTD-24, and Beauveria bassiana ZK-5 were assessed for their efficacy in causing mortality against first to sixth instar eggs and neonate larvae seven days post-treatment, and their effects on the feeding performance of sixth instar S. frugiperda larvae at 48 h post-treatment at three concentrations (1 × 106, 1 × 107, and 1 × 108 conidia mL-1) were also assessed. The six instar S. frugiperda larvae were not susceptible to the five tested fungal isolates. However, B. bassiana ZK-5 caused the highest egg mortality of 40, 70, and 85.6% at 1 × 106, 1 × 107, and 1 × 108 conidia mL-1, respectively, followed by P. citrinum CTD-24 (30.6, 50, and 75.6%) and C. tenuissimum SE-10 (25.6, 40, and 55.6%). In addition, B. bassiana ZK-5 caused the highest neonate mortality of 54.3% at 1 × 108 conidia mL-1. B. bassiana ZK-5 and P. citrinum CTD-24 caused cumulative mortality, including 93.3 and 83.3% mortality of eggs and neonates, respectively, at 1 × 108 conidia mL-1. Furthermore, B. bassiana ZK-5 reduced the feeding efficacy of first to third instar S. frugiperda larvae by 66.7 to 78.6%, while P. citrinum CTD-24 and C. tenuissimum SE-10 reduced larval feeding by 48.3 to 57.1% at 1 × 108 conidia mL-1. However, these fungal isolates were less potent in reducing the feeding activity of fourth to sixth instar S. frugiperda larvae (>46% with B. bassiana at 48 h post-treatment). The tested fungal isolates could play an essential role as microbial biopesticides in suppressing the S. frugiperda population in China after further investigations on their efficacy are obtained in the field.
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Affiliation(s)
- Atif Idrees
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China;
| | - Ziyad Abdul Qadir
- Honeybee Research Institute, National Agricultural Research Centre, Park Road, Islamabad 45500, Pakistan;
- Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE 19716, USA
| | - Komivi Senyo Akutse
- Plant Health Theme, International Centre of Insect Physiology and Ecology, Nairobi P.O. Box 30772-00100, Kenya;
| | - Ayesha Afzal
- Institute of Molecular Biology and Biotechnology, The University of Lahore, 1-Km Defense Road, Lahore 54000, Pakistan;
| | - Mubasher Hussain
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Engineering Research Center for Mineral oil pesticides, Institute of Zoology, Guangdong Academy of Science, Guangzhou 510260, China;
| | - Waqar Islam
- Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Muhammad Saad Waqas
- Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, and Scientific Observing and Experimental Station of Crop Pest in Guiyang, Institute of Entomology, Ministry of Agricultural and Rural Affairs, Guizhou University, Guiyang 550025, China;
| | - Bamisope Steve Bamisile
- Laboratory of Quarantine and Invasive Pests, Department of Entomology, South China Agricultural University, Guangzhou 510642, China;
| | - Jun Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou 510260, China;
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