Plant Growth-Promoting Rhizobacteria (PGPR): Approaches to Alleviate Abiotic Stresses for Enhancement of Growth and Development of Medicinal Plants

dc.contributor.authorKumar, Rahul
dc.contributor.authorSwapnil, Prashant
dc.contributor.authorMeena, Mukesh
dc.contributor.authorSelpair, Shweta
dc.contributor.authorYadav, Bal Govind
dc.date.accessioned2024-01-21T10:30:00Z
dc.date.accessioned2024-08-13T11:03:14Z
dc.date.available2024-01-21T10:30:00Z
dc.date.available2024-08-13T11:03:14Z
dc.date.issued2022-11-22T00:00:00
dc.description.abstractPlants are constantly exposed to both biotic and abiotic stresses which limit their growth and development and reduce productivity. In order to tolerate them, plants initiate a multitude of stress-specific responses which modulate different physiological, molecular and cellular mechanisms. However, many times the natural methods employed by plants for overcoming the stresses are not sufficient and require external assistance from the rhizosphere. The microbial community in the rhizosphere (known as the rhizomicrobiome) undergoes intraspecific as well as interspecific interaction and signaling. The rhizomicrobiome, as biostimulants, play a pivotal role in stimulating the growth of plants and providing resilience against abiotic stress. Such rhizobacteria which promote the development of plants and increase their yield and immunity are known as PGPR (plant growth promoting rhizobacteria). On the basis of contact, they are classified into two categories, extracellular (in soil around root, root surface and cellular space) and intracellular (nitrogen-fixing bacteria). They show their effects on plant growth directly (i.e., in absence of pathogens) or indirectly. Generally, they make their niche in concentrated form around roots, as the latter exude several nutrients, such as amino acids, lipids, proteins, etc. Rhizobacteria build a special symbiotic relationship with the plant or a section of the plant�s inner tissues. There are free-living PGPRs with the potential to work as biofertilizers. Additionally, studies show that PGPRs can ameliorate the effect of abiotic stresses and help in enhanced growth and development of plants producing therapeutically important compounds. This review focuses on the various mechanisms which are employed by PGPRs to mitigate the effect of different stresses in medicinal plants and enhance tolerance against these stress conditions. � 2022 by the authors.en_US
dc.identifier.doi10.3390/su142315514
dc.identifier.issn20711050
dc.identifier.urihttps://kr.cup.edu.in/handle/32116/3171
dc.identifier.urlhttps://www.mdpi.com/2071-1050/14/23/15514
dc.language.isoen_USen_US
dc.publisherMDPIen_US
dc.subjectabiotic stressen_US
dc.subjectbiostimulantsen_US
dc.subjectPGPRsen_US
dc.subjectphytohormonesen_US
dc.subjectprimingen_US
dc.titlePlant Growth-Promoting Rhizobacteria (PGPR): Approaches to Alleviate Abiotic Stresses for Enhancement of Growth and Development of Medicinal Plantsen_US
dc.title.journalSustainability (Switzerland)en_US
dc.typeReviewen_US
dc.type.accesstypeOpen Accessen_US

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