Unlocking Salinity Stress Resilience in Turnip (Brassica rapa subsp. rapa) Plants Using Bacillus subtilis Z-12 and Bacillus aryabhattai Z-48
文献类型： 外文期刊
作者： Khan, Imran 1 ; Rehman, Areeba 1 ; Akram, Waheed 3 ; Anjum, Tehmina 3 ; Yasin, Nasim Ahmad 4 ; Aftab, Zill-e-Huma 3 ; Munir, Bareera 2 ; Khan, Waheed Ullah 2 ; Li, Guihua 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Vegetable Res Inst, Guangdong Key Lab New Technol Res Vegetables, Guangzhou 510640, Peoples R China
2.Univ Punjab, Coll Earth & Environm Sci, Lahore 54590, Pakistan
3.Univ Punjab, Fac Agr Sci, Dept Plant Pathol, Lahore 54590, Pakistan
4.Univ Punjab, Fac Agr Sci, Dept Hort, Lahore 54590, Pakistan
关键词： PGPR; Bacillus spp.; Brassica rapa; turnip; microbial inoculation; salt stress
期刊名称：MICROORGANISMS （ 影响因子：4.2； 五年影响因子：4.6 ）
ISSN：
年卷期： 2025 年 13 卷 2 期
页码：
收录情况： SCI
摘要： Salinity stress poses a severe risk to food security and crop productivity. Stress reduction techniques are not necessarily sustainable or environmentally friendly. With the increasing adverse impact of salinity and area, it is necessary to restore and ameliorate salinity stress using environmentally friendly approaches. In this context, beneficial rhizospheric microbes may offer a sustainable approach to managing salinity stress. We used Bacillus subtilis strain Z-12 and B. aryabhattai strain Z-48 to improve the growth of turnip (Brassica rapa subsp. rapa) plants under salinity stress conditions and elucidated the beneficial impact of these bacterial strains on different physiological and biochemical aspects of plants. The application of both strains had a significant (p < 0.05) positive influence on analyzed parameters under salt stress. Here, B. aryabhattai strain Z-48 superiorly increased shoot length (33.2-, 25.8%), root length (38.6-, 31.5%), fresh biomass (23.9-, 17.8%), and dry biomass (38.60-, 48.6%) in normal and saline stress (200 mM NaCl) conditions, respectively. Physiological studies showed that antioxidant enzyme activities were significantly increased by B. subtilis Z-12 and B. aryabhattai Z-48 under salinity stress, with a few exceptions. Moreover, the inoculation of both strains effectively increased total chlorophyll, soluble sugar, phenolic, flavonoid, and glucosinolate contents under simulated salinity stress and normal conditions. Hence, these findings support the framework that inoculating turnip plants with these strains can enhance their tolerance against salinity stress.
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