Abstract
Humanity in the modern world is confronted with diverse problems at several levels. The environmental concern is probably the most important as it threatens different ecosystems, food, and farming as well as humans, animals, and plants. More specifically, salinization of agricultural soils is a global concern because of on one side, the permanent increase of the areas affected, and on the other side, the disastrous damage caused to various plants affecting hugely crop productivity and yields. Currently, great attention is directed towards the use of Plant Growth Promoting Bacteria (PGPB). This alternative method, which is healthy, safe, and ecological, seems to be very promising in terms of simultaneous salinity alleviation and improving crop productivity. This review attempts to deal with different aspects of the current advances concerning the use of PGPBs for saline stress alleviation. The objective is to explain, discuss, and present the current progress in this area of research. We firstly discuss the implication of PGPB on soil desalinization. We present the impacts of salinity on crops. We look for the different salinity origin and its impacts on plants. We discuss the impacts of salinity on soil. Then, we review various recent progress of hemophilic PGPB for sustainable agriculture. We categorize the mechanisms of PGPB toward salinity tolerance. We discuss the use of PGPB inoculants under salinity that can reduce chemical fertilization. Finally, we present some possible directions for future investigation. It seems that PGPBs use for saline stress alleviation gain more importance, investigations, and applications. Regarding the complexity of the mechanisms implicated in this domain, various aspects remain to be elucidated.
Highlights
The worldwide enhancement of both human population and the associated environmental deterioration has the unfortunate influence that global food manufacture might soon become unsatisfactory to nourish all of the world’s people
Salinity is a great threat for agriculture by affecting soil, microorganisms, and plants throughout their development cycle, from germination to maturation
Plant Growth Promoting Bacteria (PGPB) show a great capacity for saline stress alleviation mainly because of their resistance, adaptability, and a huge variability of the mechanisms involved in this process
Summary
The worldwide enhancement of both human population and the associated environmental deterioration has the unfortunate influence that global food manufacture might soon become unsatisfactory to nourish all of the world’s people. In the natural environment, plants are constantly exposed to various abiotic and biotic factors, which may affect their increase and yield [2]. Salinity is recognized to affect almost one fourth of world cultivable land, a main cause of desertification [5] It is responsible for the degradation of 10 million ha of world farming per year [6], influencing about 1 million ha in the European Union, mainly in the Mediterranean countries. Salinization is a natural process in semiarid and arid zones and may be stimulated by anthropogenic practices It significantly influences land fertility [8], and comprises a huge effect on food security and economy at local, regional, and global levels [7]. PGPB are an environmentally sustainable tool to mitigate the impacts of salinity on crop yields [2]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
