Biodiversity and biotechnological applications of halophilic microbes for sustainable agriculture

doi:10.7324/jabb.2018.60109

Cited by 12 publications

(7 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, the hubs with the maximum out degree were Pontibacillus and RB41 unclassified. Pontibacillus has been described as a salt-tolerant microbe, with the capacity to fix nitrogen; solubilize zinc, potassium, and phosphorus; produce ammonia, HCN, siderophores and other secondary metabolites (Yadav and Saxena, 2018). Actinobacteria RB41 from soils under low-nutrient or stress conditions was shown to be important in maintaining biogeochemical and metabolic functions (Foesel et al, 2013), since they are positive correlated with nitrogen and sulfur cycling, such as nitrification, sulfide oxidation, sulfite reduction, and dimethylsulfoniopropionate degradation (Wang et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Bacterial Diversity and Interaction Networks of Agave lechuguilla Rhizosphere Differ Significantly From Bulk Soil in the Oligotrophic Basin of Cuatro Cienegas

et al. 2020

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Bacterial Diversity and Interaction Networks of Agave lechuguilla Rhizosphere Differ Significantly From Bulk Soil in the Oligotrophic Basin of Cuatro Cienegas

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Many other innovations have been involved in increasing salt resistance in plant cultures, along with PGPB to alleviation of salinity stress. Such chemicals' use could be decreased/substituted by P-solubilizing, nitrogen-fixing, and K-solubilizing/mobilizing microorganisms (NPK) as biofertilizer environmentally friendly advancements [8]. The use of microbes in wheat and maize may minimize salt stress effects by about 50% [263].…”

Section: Pgpb Inoculants Under Salinity Can Reduce Chemical Fertilizamentioning

confidence: 99%

Current Advances in Plant Growth Promoting Bacteria Alleviating Salt Stress for Sustainable Agriculture

2020

View full text Add to dashboard Cite

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.

show abstract

“…The rhizosphere bacteria isolated in this study were found to have high salt tolerance ( Figure 2 ), a fact that could be connected to their habitat. Saline soils harbor microbes that could survive under high salinity and perform plant growth-promoting activities under such conditions ( Yadav and Saxena, 2018 ), and the crop rhizosphere is a rich habitat to search for trait-specific, salt-tolerant bacterial strains ( Ling et al., 2022 ). High EPS production by these microbes could also contribute to salt tolerance ( Figure 3 ) ( Balsanelli et al., 2014 ; Singh et al., 2022 ), as EPS keeps a physical barrier between plant roots and the hypersaline environment ( Singh and Jha, 2016 ; Sagar et al., 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Salinity alleviator bacteria in rice (Oryza sativa L.), their colonization efficacy, and synergism with melatonin

Gupta

Tiwari²,

Shukla³

et al. 2023

Front. Plant Sci.

View full text Add to dashboard Cite

In this study, rhizospheric and endophytic bacteria were tested for the alleviation of salinity stress in rice. Endophytic isolates were taken from previous studies based on their salt stress-alleviating traits. The rhizospheric bacteria were isolated from rice and screened based on salt tolerance and plant growth-promoting traits. Molecular identification indicated the presence of class Gammaproteobacteria, Bacillota, and Actinomycetia. Two-two most potential isolates each from rhizospheric and endophytic bacteria were selected for in planta trials. Results showed that microbial inoculation significantly improved germination and seedling vigor under elevated salinity. The confocal scanning laser microscopy showed higher bacterial colonization in inoculated rice roots than in control. Based on this experiment, rhizospheric bacteria Brevibacterium frigoritolerans W19 and endophytic Bacillus safensis BTL5 were selected for pot trial along with a growth-inducing compound melatonin 20 ppm. Inoculation of these two bacteria improved the levels of chlorophyll, proline, phenylalanine ammonia-lyase, catalase, superoxide dismutase, polyphenol oxidase, root-shoot length, and dry weight under elevated salt concentration. The gene expression studies showed modulation of SOD1, CATa, NHX1, and PAL1 genes by the bacterial strains and melatonin application. The inoculation was found to have additive effects with 20 ppm melatonin. This enhancement in dry matter accumulation, compatible solute production, and oxidative stress regulation could help plants in mitigating the ill effects of high salinity. Exploring such a combination of microbes and inducer molecules could be potentially useful in developing stress-alleviating bioformulations.

show abstract

Biodiversity and biotechnological applications of halophilic microbes for sustainable agriculture

Cited by 12 publications

References 26 publications

Bacterial Diversity and Interaction Networks of Agave lechuguilla Rhizosphere Differ Significantly From Bulk Soil in the Oligotrophic Basin of Cuatro Cienegas

Bacterial Diversity and Interaction Networks of Agave lechuguilla Rhizosphere Differ Significantly From Bulk Soil in the Oligotrophic Basin of Cuatro Cienegas

Current Advances in Plant Growth Promoting Bacteria Alleviating Salt Stress for Sustainable Agriculture

Salinity alleviator bacteria in rice (Oryza sativa L.), their colonization efficacy, and synergism with melatonin

Contact Info

Product

Resources

About