Статья

<i>Bacillus megaterium</i> strain A12 ameliorates salinity stress in tomato plants through multiple mechanisms

Waheed AkramGuangdong Key Laboratory for New Technology Research of Vegetables, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of ChinaHina AslamCollege of Earth and Environmental Sciences, University of the Punjab, Lahore, PakistanSajid Rashid AhmadCollege of Earth and Environmental Sciences, University of the Punjab, Lahore, PakistanTehmina AnjumInstitute of Agricultural Sciences, University of the Punjab, Lahore, PakistanNasim Ahmad YasinInstitute of Agricultural Sciences, University of the Punjab, Lahore, PakistanWaheed Ullah KhanCollege of Earth and Environmental Sciences, University of the Punjab, Lahore, PakistanAqeel AhmadGuangdong Key Laboratory for New Technology Research of Vegetables, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of ChinaJuxian GuoGuangdong Key Laboratory for New Technology Research of Vegetables, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of ChinaTingquan WuGuangdong Key Laboratory for New Technology Research of Vegetables, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of ChinaWenlong LuoGuangdong Key Laboratory for New Technology Research of Vegetables, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of ChinaGuihua LiGuangdong Key Laboratory for New Technology Research of Vegetables, Guangdong Academy of Agricultural Sciences, Guangzhou, People’s Republic of China

2019en

ABI

Аннотация

Plants must cope with the stress conditions to survive. Plant growth promoting rhizobacteria can improve plant growth either directly or indirectly under stress conditions. However, the possible mechanisms remain unclear. Here we report that Bacillus megaterium strain A12 (BMA12) maintains hormonal and redox homeostasis and restores the photosynthetic efficacy of tomato plants through multiple mechanisms to survive under salinity stress conditions. Tomato plants were co-cultivated with BMA12 under saline conditions. The application of BMA12 significantly increased plant growth and photosynthetic capacity. BMA12 decreased production of ROS and ethylene but increased expression levels of selected genes responsible for repairing of damaged photosynthetic apparatus and maintenance of redox homeostasis. Furthermore, BMA12 significantly altered metabolic profile to restore perturbations of tomato plant physiology impaired with salinity stress. This study proves that BMA12 can be used in the conventional agriculture system in the salinity effected fields.

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Идентификаторы

DOI: 10.1080/17429145.2019.1662497

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar