Halotolerant Bacillus Aryabhattai Strain PM34 Mitigates Salinity Stress and Enhances the Physiology and Growth of Maize
文献类型：期刊论文
| 作者 | Azeem, Muhammad Atif5,6; Khan, Salman2; Ali, Fawad1,8; Ahmad, Sajjad2; Rahim, Gul2; Iftikhar, Muhammad7; Iqbal, Majid4; Aljaloud, Rawa Saad3; Alarjani, Khaloud Mohammed3; Chaudhary, Hassan Javed6 |
| 刊名 | JOURNAL OF PLANT GROWTH REGULATION
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 44期号:12页码:7000-7018 |
| 关键词 | Salinity stress Maize Plant stress physiology Exopolysaccharides Plant growth promoting bacteria Plant-microbe interactions |
| ISSN号 | 0721-7595 |
| DOI | 10.1007/s00344-024-11456-y |
| 产权排序 | 7 |
| 文献子类 | Article |
| 英文摘要 | Maize is a versatile cereal underpinning global food security and industrial applications. Salinity impedes plant growth and productivity of crops by disrupting the ionic and osmotic balance and hormonal regulation. The present study aimed to examine the potential of plant growth-promoting rhizobacteria strains PM34 (B. aryabhattai) in mitigating salinity stress in maize. The selected rhizobacterium exhibited notable tolerance to NaCl, thriving in concentrations ranging from 0.5 to 1.5 M in LB medium. The efficient B. aryabhattai PM34 strain demonstrated siderophore production capabilities (55.64-50.46%), phosphate solubilization (24.42-21.23 mu g.mL(-1)), secretion of indole-3-acetic acid (81.29-58.31 mu M.mL(-1)) and 1-aminocyclopropane-1-carboxylate deaminase (2.12-1.08 mu M/mg protein/h) and exopolysaccharides production (680-810 mu g.mL(-1)) at concentrations from 0 to 750 mM salt stress. PM34 inoculation significantly enhanced maize growth, including improvements in shoot length (19.88-50%), root length (16.32-44.84%), fresh weight (23.53-37.93%), dry weight (10-25.71%) and leaf area (20.25-40.91%) at salinity stress 0 to 300 mM in PM34 inoculated plants as compared to non-inoculated plants. PM34 inoculated plants showed increase in chlorophyll a (2.72-32.88%), b (10.09-86.36%), total chlorophyll (9.87-47.98%), and carotenoids (26.39-66.13%) content as compared to non-inoculated plants. Moreover, improvement in the activities of antioxidant enzymes superoxide dismutase (35.03-55.14%), peroxidase (60.94-22.86%), catalase (20.31-30.24%), ascorbate peroxidase (9.03-15.34%) and the accumulation of osmotic regulators proline (11.47-16.21%) and glycine betaine (10.12-20.25%), when compared to non-inoculated controls under salt stress conditions. Furthermore, maize augmented with halotolerant bacteria displayed reduction in electrolyte leakage (14.81-28.65%), malondialdehyde (20.92-37%), and sodium uptake (9.43-36.98%) when subjected to salt stress. These results contribute to the theoretical foundation and can be concluded that the inoculation of this PGPR can alleviate the adverse effects of salinity stress on maize. |
| URL标识 | 查看原文 |
| WOS关键词 | PLANT-GROWTH ; PROMOTING BACTERIA ; OXIDATIVE STRESS ; SALT STRESS ; ANTIOXIDANT ACTIVITY ; EXOPOLYSACCHARIDE ; TOLERANCE ; RHIZOBACTERIA ; CHLOROPHYLL ; SEEDLINGS |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001308065800001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219411]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Chaudhary, Hassan Javed |
| 作者单位 | 1.Hainan Univ, Coll Forestry, Key Lab Genet & Germplasm Innovat Trop Special For, Minist Educ, 58 Renmin Ave, Haikou 570228, Hainan, Peoples R China; 2.Univ Malakand, Bot Dept, Chakdara 18800, Pakistan; 3.King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh, Saudi Arabia 4.Univ Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China; 5.Univ Tasmania, Tasmanian Inst Agr, Launceston, Tas 7250, Australia; 6.Quaid I Azam Univ, Dept Plant Sci, Islamabad 45320, Pakistan; 7.Land Resources Res Inst, Natl Agr Res Ctr, Soil Biol Program, Islamabad, Pakistan; 8.Univ Baltistan, Dept Bot, Skardu 16400, Pakistan; |
| 推荐引用方式 GB/T 7714 | Azeem, Muhammad Atif,Khan, Salman,Ali, Fawad,et al. Halotolerant Bacillus Aryabhattai Strain PM34 Mitigates Salinity Stress and Enhances the Physiology and Growth of Maize[J]. JOURNAL OF PLANT GROWTH REGULATION,2025,44(12):7000-7018. |
| APA | Azeem, Muhammad Atif.,Khan, Salman.,Ali, Fawad.,Ahmad, Sajjad.,Rahim, Gul.,...&Chaudhary, Hassan Javed.(2025).Halotolerant Bacillus Aryabhattai Strain PM34 Mitigates Salinity Stress and Enhances the Physiology and Growth of Maize.JOURNAL OF PLANT GROWTH REGULATION,44(12),7000-7018. |
| MLA | Azeem, Muhammad Atif,et al."Halotolerant Bacillus Aryabhattai Strain PM34 Mitigates Salinity Stress and Enhances the Physiology and Growth of Maize".JOURNAL OF PLANT GROWTH REGULATION 44.12(2025):7000-7018. |
入库方式： OAI收割
来源：地理科学与资源研究所
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