Exploring the Potential of Bacillus subtilis IS1 and B. amyloliquificiens IS6 to Manage Salinity Stress and Fusarium Wilt Disease in Tomato Plants by Induced Physiological Responses

被引：0

作者：

Akram, Waheed ^{[1
]}

Sharif, Shama ^{[1
,2
]}

Rehman, Areeba ^{[2
,3
]}

Anjum, Tehmina ^{[1
]}

Ali, Basharat ^{[4
]}

Aftab, Zill-e-Huma ^{[1
]}

Shafqat, Ayesha ^{[5
]}

Afzal, Laiba ^{[3
]}

Munir, Bareera ^{[3
]}

Rizwana, Humaira ^{[6
]}

Li, Guihua ^{[2
]}

机构：

[1] Univ Punjab, Fac Agr Sci, Dept Plant Pathol, Lahore 54590, Pakistan

[2] Guangdong Acad Agr Sci, Vegetable Res Inst, Guangzhou 510640, Peoples R China

[3] Univ Punjab, Coll Earth & Environm Sci, Lahore 54590, Pakistan

[4] Univ Punjab, Inst Microbiol & Mol Genet, Lahore 54590, Pakistan

[5] Minhaj Univ, Sch Bot, Lahore 54770, Pakistan

[6] King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh 11495, Saudi Arabia

来源：

MICROORGANISMS | 2024年 / 12卷 / 10期

关键词：

salt tolerance; <italic>Fusarium</italic> wilt; <italic>B. subtilis</italic>; <italic>B. amyloliquificiens</italic>; rhizobacteria; climate change; PEROXIDASE; ANTIOXIDANT; ENZYMES; GROWTH; LEAVES; SPP;

D O I：

10.3390/microorganisms12102092

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The intensified concerns related to agrochemicals' ecological and health risks have encouraged the exploration of microbial agents as eco-friendly alternatives. Some members of Bacillus spp. are potential plant-growth-promoting agents and benefit numerous crop plants globally. This study aimed to explore the beneficial effects of two Bacillus strains (B. subtilis strain IS1 and B. amyloliquificiens strain IS6) capable of alleviating the growth of tomato plants against salinity stress and Fusarium wilt disease. These strains were able to significantly promote the growth of tomato plants and biomass accumulation in pot trials in the absence of any stress. Under salinity stress conditions (150 mM NaCl), B. subtilis strain IS1 demonstrated superior performance and significantly increased shoot length (45.74%), root length (101.39%), fresh biomass (62.17%), and dry biomass (49.69%) contents compared to control plants. Similarly, B. subtilis strain IS1 (63.7%) and B. amyloliquificiens strain IS6 (32.1%) effectively suppressed Fusarium wilt disease and significantly increased plant growth indices compared to the pathogen control. Furthermore, these strains increased the production of chlorophyll, carotenoid, and total phenolic contents. They significantly affected the activities of enzymes involved in antioxidant machinery and the phenylpropanoid pathway. Hence, this study effectively demonstrates that these Bacillus strains can effectively alleviate the growth of tomato plants under multiple stress conditions and can be used to develop bio-based formulations for use in the fields.

引用

页数：14