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Pink powerhouses: insights into the multifaceted role of Methylobacterium in climate-resilient farming

P. Ayyamuthu Rajarathinam Uma, PD. Rathinasamy, R. Thanakkan, V. Dhashnamurthi, S. Murugaiyan

. 2025 ; 70 (6) : 1241-1266. [pub] 20251011

Jazyk angličtina Země Česko

Typ dokumentu časopisecké články, přehledy

Perzistentní odkaz   https://www.medvik.cz/link/bmc26001187

The plant microbiomes consist of a myriad of microorganisms that inhabit and interact with plant tissues and play pivotal roles in improving crop productivity and sustainability. These microbiomes constitute bacteria, fungi, archaea and viruses that have coevolved and supported plants inhabiting the Earth for millions of years. Among these, bacterial members play major functional roles in fostering plant growth and are regarded as plant growth-promoting bacteria (PGPB). One of the major bacterial genera of the plant microbiome that colonizes the entire plant system is the genus Methylobacterium. The genus Methylobacterium is categorized as a member of the class Alphaproteobacteria and is distinguished by its pink pigmentation, which is a result of the synthesis of carotenoids, mainly xanthophiles. Members of the Methylobacterium genus are commonly known as pink-pigmented facultative methylotrophs, which are ubiquitous in nature and have gained significant importance in crop production in various agricultural ecosystems because of their versatile ability to promote plant growth and enhance stress tolerance. They have the unique ability to utilize single-carbon compounds that are released during plant cell metabolism, improve plant growth, siderophore and phytohormone (auxin and cytokinin) production, and nitrogen fixation; phosphorous and zinc solubilization and induced systemic resistance against phytopathogens; protective biofilm formation; and the production of 1-aminocyclopropane-1-carboxylate deaminase to increase stress tolerance and carotenoid production for UV stress tolerance. Owing to its use as a biostimulant, biofertilizer and biocontrol agent, Methylobacterium has potential applications in agriculture for increasing soil health, crop productivity and environmental sustainability. This review provides broad perspectives on the multifaceted role and sustainable application of Methylobacterium in climate-smart agriculture.

Citace poskytuje Crossref.org

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