Alleviation of the adverse effect of salinity stress by inoculation of plant growth promoting rhizobacteria isolated from hot humid tropical climate

2017 ◽  
Vol 102 ◽  
pp. 361-366 ◽  
Author(s):  
K. Kumar ◽  
N. Amaresan ◽  
K. Madhuri
Author(s):  
Akanksha Gupta ◽  
Sandeep Kumar Singh ◽  
Manoj Kumar Singh ◽  
Vipin Kumar Singh ◽  
Arpan Modi ◽  
...  

2021 ◽  
Author(s):  
Sajid Rashid Ahmad ◽  
Sana Ashraf ◽  
Humaira Nawaz

Saline soil is one of the common environmental issues that negatively affects the soil quality of agricultural lands. It reduces the plant growth and productivity worldwide. Soil Salinity and sodicity affecting land about 1128 million hectares globally determined by recent researches. The most important salt-sensitive cereal crops in the world are Maize (Zea mays L.) For food security, its need of hour to securing attainable production of maize crop in the salt affected soils. To reduce negative impacts of saline soil on plant growth, sustainable approaches such as organic amendments like press mud and inorganic amendments like silicon can be applied. For increasing crop productivity, plant growth promoting rhizobacteria (PGPR) which are salt-tolerant in saline agriculture can also be applied. In this book chapter interactive effect of different organic and inorganic amendments and plant growth-promoting rhizobacteria to reduce salinity stress on maize has been discussed.


2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Sheikh Hasna Habib ◽  
Hossain Kausar ◽  
Halimi Mohd Saud

Salinity is a major environmental stress that limits crop production worldwide. In this study, we characterized plant growth-promoting rhizobacteria (PGPR) containing 1-aminocyclopropane-1-carboxylate (ACC) deaminase and examined their effect on salinity stress tolerance in okra through the induction of ROS-scavenging enzyme activity. PGPR inoculated okra plants exhibited higher germination percentage, growth parameters, and chlorophyll content than control plants. Increased antioxidant enzyme activities (SOD, APX, and CAT) and upregulation of ROS pathway genes (CAT, APX, GR, and DHAR) were observed in PGPR inoculated okra plants under salinity stress. With some exceptions, inoculation withEnterobactersp. UPMR18 had a significant influence on all tested parameters under salt stress, as compared to other treatments. Thus, the ACC deaminase-containing PGPR isolateEnterobactersp. UPMR18 could be an effective bioresource for enhancing salt tolerance and growth of okra plants under salinity stress.


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