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Afrouz M, Sayyed RZ, Fazeli-Nasab B, Piri R, Almalki W, Fitriatin BN. Seed bio-priming with beneficial Trichoderma harzianum alleviates cold stress in maize. PeerJ 2023; 11:e15644. [PMID: 37645014 PMCID: PMC10461543 DOI: 10.7717/peerj.15644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 06/05/2023] [Indexed: 08/31/2023] Open
Abstract
Maize is one of the major crops in the world and the most productive member of the Gramineae family. Since cold stress affects the germination, growth, and productivity of corn seeds, the present study aimed to investigate the effect of seed biopriming with Trichoderma harzianum on the tolerance of two genotypes of maize seedlings to cold stress. This study was conducted in triplicates in factorial experiment with a complete randomized block design (CRBD). The study was conducted in the greenhouse and laboratory of the University of Mohaghegh Ardabili, Ardabil, Iran. Experimental factors include two cultivars (AR68 cold-resistant and KSC703 cold-sensitive maize cultivars), four pretreatment levels (control, biopriming with T. harzianum, exogenous T. harzianum, and hydropriming), and two levels of cold stress (control and cold at 5 °C) in a hydroponic culture medium. The present study showed that maize leaves' establishment rate and maximum fluorescence (Fm) are affected by triple effects (C*, P*, S). The highest establishment (99.66%) and Fm (994 units) rates were observed in the KP3 control treatment. Moreover, among the pretreatments, the highest (0.476 days) and the lowest (0.182 days) establishment rates were related to P0 and P3 treatments, respectively. Cultivar A showed higher chlorophyll a and b, carotenoid content, and establishment rate compared to cultivar K in both optimal and cold conditions. The highest root dry weight (11.84 units) was obtained in cultivar A with P3 pretreatment. The pretreatments with T. harzianum increased physiological parameters and seedling emergence of maize under cold and optimal stress conditions. Pretreatment and cultivar improved catalase activity in roots and leaves. Higher leaf and root catalase activity was observed in the roots and leaves of cultivar K compared to cultivar A. The cold treatment significantly differed in peroxidase activity from the control treatment. Cultivar K showed higher catalase activity than cultivar A. The main effects of pretreatment and cold on polyphenol oxidase activity and proline content showed the highest polyphenol oxidase activity and proline content in hydropriming (H) treatment. Cold treatment also showed higher polyphenol oxidase activity and proline content than cold-free conditions.
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Affiliation(s)
- Mehdi Afrouz
- Department of Plant Production and Genetic Engineering, University of Mohaghegh Ardabili, Ardabil, Ardabil, Iran
| | - R Z Sayyed
- Department of Microbiology, PSGVP Mandal's S I Patil Arts, G B Patel Science and STKV Sangh Commerce College, Shahada, India
| | - Bahman Fazeli-Nasab
- Department of Agronomy and Plant Breeding, Agriculture Institute, Research Institute of Zabol, Zabol, Iran
| | - Ramin Piri
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Tehran, Iran
| | - WaleedHassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
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Paravar A, Piri R, Balouchi H, Ma Y. Microbial seed coating: An attractive tool for sustainable agriculture. Biotechnol Rep (Amst) 2023; 37:e00781. [PMID: 36655147 PMCID: PMC9841043 DOI: 10.1016/j.btre.2023.e00781] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 01/06/2023]
Abstract
Seed coating is considered one of the best methods to promote sustainable agriculture where the physical and physiological properties of seeds can be improved to facilitate planting, increase growth indices and alleviate abiotic and biotic stresses. Several methods of seed coating are used to attain good application uniformity and adherence in the seed coating process. Seed coating has been tested in seeds of various plant species with different dimensions, forms, textures, and germination types. Plant beneficial microorganisms (PBM), such as rhizobia, bacteria, and fungi inoculated via seed inoculation can increase seed germination, plant performance and tolerance across biotic (e.g., pathogens and pests) and abiotic stress (e.g., salt, drought, and heavy metals) while reducing the use of agrochemical inputs. In this review, the microbial seed coating process and their ability to increase seed performance and protect plants from biotic and abiotic stresses are well discussed and highlighted in sustainable agricultural systems.
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Affiliation(s)
- Arezoo Paravar
- Department of Crop Production and Plant Breeding, College of Agriculture, Shahed University, Tehran, Iran
| | - Ramin Piri
- Department of Agronomy and Plant Breeding, College of Agriculture, University of Tehran, Tehran, Iran
| | - Hamidreza Balouchi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University, Yasouj, Iran,Corresponding authors.
| | - Ying Ma
- College of Resources and Environment, Southwest University, Chongqing, China,Corresponding authors.
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Hoseini A, Salehi A, Sayyed RZ, Balouchi H, Moradi A, Piri R, Fazeli-Nasab B, Poczai P, Ansari MJ, Obaid SA, Datta R. Efficacy of biological agents and fillers seed coating in improving drought stress in anise. Front Plant Sci 2022; 13:955512. [PMID: 35937352 PMCID: PMC9355580 DOI: 10.3389/fpls.2022.955512] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 06/24/2022] [Indexed: 06/12/2023]
Abstract
Many plants, including anise, have tiny, non-uniform seeds with low and light nutrient reserves. The seeds also show a weak establishment, especially under stressful conditions where their accurate planting in the soil and optimal yield are tough. This study sought to improve anise seeds' physical and physiological characteristics under drought stress. To this end, two factorial experiments under laboratory and greenhouse conditions were performed in a completely randomized design with 4 and 3 replications, respectively. Five levels of seed inoculation (inoculation with T36 and T43 of Trichoderma harzianum, and CHA0 and B52 of Pseudomonas fluorescent, and non-inoculation which means that control seeds were not treated with microbial inoculant), three levels of coating (K10P20, K10P10V5, and non-coating), and three levels of drought stress (0, -3, and -6 bars) were considered as the factorial experiment [vermiculite (V), kaolin (K), and perlite (P) numbers refer to the amount of material used in grams]. The laboratory experiment revealed that the combined treatments of bio-agents with coating increased the physical and germination characteristics of anise seeds compared to the control treatment. The greenhouse experiment showed that drought stress reduced the initial growth indices. Still, the combination treatments of biological agents and coating (fillers) could alleviate the destructive effects of drought stress to some extent and improve these indices. The best treatment was provided by T36 and K10P20 in both experiments, which significantly increased morphological indices.
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Affiliation(s)
- Atefeh Hoseini
- Department of Agronomy and Plant Breeding, Yasouj University, Yasouj, Iran
| | - Amin Salehi
- Department of Agronomy and Plant Breeding, Yasouj University, Yasouj, Iran
| | - R. Z. Sayyed
- Department of Microbiology, PSGVP Mandal’s S I Patil Arts, G B Patel Science, and STKV Sangh Commerce College, Shahada, India
| | - Hamidreza Balouchi
- Department of Agronomy and Plant Breeding, Yasouj University, Yasouj, Iran
| | - Ali Moradi
- Department of Agronomy and Plant Breeding, Yasouj University, Yasouj, Iran
| | - Ramin Piri
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tehran, Tehran, Iran
| | - Bahman Fazeli-Nasab
- Department of Agronomy and Plant Breeding, Agriculture Institute, Research Institute of Zabol, Zabol, Iran
| | - Peter Poczai
- Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College, (Mahatma Jyotiba Phule Rohilkhand University, Bareilly), Moradabad, India
| | - Sami Al Obaid
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Rahul Datta
- Department of Geology and Pedology, Mendel University in Brno, Brno, Czechia
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