Correction to: Revealing the underlying mechanisms mediated by endophytic actinobacteria to enhance the rhizobia—chickpea (Cicer arietinum L.) symbiosis

Xu, Ting; Vo, Q. A. Tuan; Barnett, Steve; Ballard, Ross; Zhu, Yonghua; Franco, Christopher M. M.

doi:10.1007/s11104-022-05402-8

Cited by 1 publication

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“…Rhizobia also promote the growth of non-legumes, such as rice and radish, by mechanisms other than nitrogen fixation, including siderophore production, phosphate solubilization and indole-3-acetic acid (IAA) production [ 54 , 55 ]. Non-rhizobial PGPR inoculated onto legumes in combination with compatible rhizobia can increase nodulation, nitrogen fixation, and crop yields [ 56 , 57 ].…”

Section: The Rhizomicrobiomementioning

confidence: 99%

The Biosynthesis and Functions of Polyamines in the Interaction of Plant Growth-Promoting Rhizobacteria with Plants

Dunn

Becerra-Rivera

2023

Plants

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Plant growth-promoting rhizobacteria (PGPR) are members of the plant rhizomicrobiome that enhance plant growth and stress resistance by increasing nutrient availability to the plant, producing phytohormones or other secondary metabolites, stimulating plant defense responses against abiotic stresses and pathogens, or fixing nitrogen. The use of PGPR to increase crop yield with minimal environmental impact is a sustainable and readily applicable replacement for a portion of chemical fertilizer and pesticides required for the growth of high-yielding varieties. Increased plant health and productivity have long been gained by applying PGPR as commercial inoculants to crops, although with uneven results. The establishment of plant–PGPR relationships requires the exchange of chemical signals and nutrients between the partners, and polyamines (PAs) are an important class of compounds that act as physiological effectors and signal molecules in plant–microbe interactions. In this review, we focus on the role of PAs in interactions between PGPR and plants. We describe the basic ecology of PGPR and the production and function of PAs in them and the plants with which they interact. We examine the metabolism and the roles of PAs in PGPR and plants individually and during their interaction with one another. Lastly, we describe some directions for future research.

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