Metarhizium anisopliae (MetA1) seed priming improves photosynthesis, growth, plant defense and yield of wheat under drought stress.

Autor: Mim MF; Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh; Department of Plant and Soil Science, Texas Tech University, Lubbock, USA., Chowdhury MZH; Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh; Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, USA., Rohman MM; Plant Breeding Division, Bangladesh Agricultural Research Institute, Gazipur, 1701, Bangladesh., Naz A; Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh., Bhuiyan AU; Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh., Mohi-Ud-Din M; Department of Crop Botany, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh., Haque MA; Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh., Islam SMN; Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh. Electronic address: naimul@bsmrau.edu.bd.
Jazyk: angličtina
Zdroj: Plant physiology and biochemistry : PPB [Plant Physiol Biochem] 2024 Oct 28; Vol. 217, pp. 109239. Date of Electronic Publication: 2024 Oct 28.
DOI: 10.1016/j.plaphy.2024.109239
Abstrakt: Drought stress mitigation by endophytic microorganisms has the potential to enhance crop resilience. This research investigated the effects of M. anisopliae isolate MetA1 (MA) on drought tolerance in wheat plants by evaluating physiological, morphological, biochemical, and yield characteristics of two wheat genotypes, one being drought-susceptible (BR20) and another having drought withstanding capacities (BR28) in a pot experiment under moderate and severe drought conditions. Under drought conditions, root colonization by M. anisopliae ranged from 33.33 to 66.67%. M. anisopliae treated plants increased the plant photosynthetic capacities by increasing photosynthetic pigments, Phi2, gH + , vH + , LEF, ECSt, leaf thickness and decreasing PhiNO, PhiNPQ, NPQt and leaf angle mostly for both genotypes, which contributed significant improvement of plant biomass in drought conditions. Exceptionally, the seed primed with M. anisopliae noticeably improved root length (by up to 17.6%) under drought conditions corroborated with the plant's drought mitigating approach. The stress induced malondialdehyde and hydrogen peroxide levels were dropped significantly by improving enzymatic antioxidants, such as peroxidase, ascorbate peroxidase, superoxide dismutase, catalase, and glutathione S-transferase in both M. anisopliae -primed genotypes. Also, proline content increased in the leaves of M. anisopliae treated plant which indicates better osmotic adjustment. Finally, M. anisopliae seed priming increased yield and yield characteristics of both genotypes in drought as well as non-drought situations with 1000-grain weight improving by up to 41.77% under severe drought. The study proposes a further investigation of M. anisopliae's effect in field settings and its applicability to other crops. Collectively, these findings emphasize the practical potential of M. anisopliae seed priming in boosting wheat production under water-limited circumstances, presenting a realistic technique for minimizing the effect of drought on global food security.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Shah Mohammad Naimul Islam reports equipment, drugs, or supplies was provided by Bangabandhu Sheikh Mujibur Rahman Agricultural University. Shah Mohammad Naimul Islam reports a relationship with Bangabandhu Sheikh Mujibur Rahman Agricultural University that includes: employment. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Masson SAS. All rights reserved.)
Databáze: MEDLINE
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