Molecular and biochemical changes of aging-induced nodules senescence in common bean

Silva, Helder Anderson Pinto da; Caetano, Vanessa Santana; Pessoa, Daniella Duarte Villarinho; Pacheco, Rafael Sanches; Simões‐Araújo, Jean Luiz

doi:10.1007/s13199-019-00618-2

Cited by 6 publications

(6 citation statements)

References 78 publications

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“…In the senescent nodules, PvGS ( n− 1) , a gene controlling the transcription of glutamine synthetase, that is crucial for ammonium assimilation (Hungria and Kaschuk 2014), was downregulated (da Silva et al . 2019). The expression of this gene is linked with increased nitrogenase activity and leghaemoglobin (Lara et al .…”

Section: Acc‐deaminase‐producing Nermentioning

confidence: 99%

Mechanisms in plant growth‐promoting rhizobacteria that enhance legume–rhizobial symbioses

Alemneh

Zhou

Ryder

et al. 2020

J. Appl. Microbiol.

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Nitrogen fixation is an important biological process in terrestrial ecosystems and for global crop production. Legume nodulation and N 2 fixation have been improved using nodule-enhancing rhizobacteria (NER) under both regular and stressed conditions. The positive effect of NER on legume-rhizobia symbiosis can be facilitated by plant growth-promoting (PGP) mechanisms, some of which remain to be identified. NER that produce aminocyclopropane-1carboxylic acid deaminase and indole acetic acid enhance the legume-rhizobia symbiosis through (i) enhancing the nodule induction, (ii) improving the competitiveness of rhizobia for nodulation, (iii) prolonging functional nodules by suppressing nodule senescence and (iv) upregulating genes associated with legume-rhizobia symbiosis. The means by which these processes enhance the legume-rhizobia symbiosis is the focus of this review. A better understanding of the mechanisms by which PGP rhizobacteria operate, and how they can be altered, will provide opportunities to enhance legume-rhizobial interactions, to provide new advances in plant growth promotion and N 2 fixation. Highlights • ACC deaminase and IAA synthesis enhance nodule formation. • ACC deaminase and IAA synthesis improve the competitiveness of rhizobia for nodule induction. • IAA synthesis enhances N 2 fixation by upregulating the expression of genes associated with legume-rhizobia symbioses. • ACC deaminase prolongs nodule function by delaying nodule senescence. • ACC deaminase can reduce the negative influence of very high IAA on nodule induction.

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Section: Acc‐deaminase‐producing Nermentioning

confidence: 99%

Mechanisms in plant growth‐promoting rhizobacteria that enhance legume–rhizobial symbioses

Alemneh

Zhou

Ryder

et al. 2020

J. Appl. Microbiol.

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“…In previous studies, both genes were found to be upregulated in response to rhizobial inoculation during cortical cell divisions in the early stages of nodule organogenesis [35,44]. On the other hand, the induction of PvMT1A transcript accumulation observed in roots at 30 dpi suggests that this gene is likely involved in the characteristic oxidative stress that occurs during nodule senescence [45,46]. In addition, the high expression of PvMT1A in non-inoculated roots at different time points also suggests a role of this gene in the root development, which is supported by the reduction in lateral root development (Figure S9).…”

Section: Discussionmentioning

confidence: 89%

Metallothionein1A Regulates Rhizobial Infection and Nodulation in Phaseolus vulgaris

Fonseca-García

López-García

Pacheco

et al. 2022

IJMS

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Metallothioneins (MTs) constitute a heterogeneous family of ubiquitous metal ion-binding proteins. In plants, MTs participate in the regulation of cell growth and proliferation, protection against heavy metal stress, oxidative stress responses, and responses to pathogen attack. Despite their wide variety of functions, the role of MTs in symbiotic associations, specifically nodule-fabacean symbiosis, is poorly understood. Here, we analyzed the role of the PvMT1A gene in Phaseolus vulgaris-Rhizobium tropici symbiosis using bioinformatics and reverse genetics approaches. Using in silico analysis, we identified six genes encoding MTs in P. vulgaris, which were clustered into three of the four classes described in plants. PvMT1A transcript levels were significantly higher in roots inoculated with R. tropici at 7 and 30 days post inoculation (dpi) than in non-inoculated roots. Functional analysis showed that downregulating PvMT1A by RNA interference (RNAi) reduced the number of infection events at 7 and 10 dpi and the number of nodules at 14 and 21 dpi. In addition, nodule development was negatively affected in PvMT1A:RNAi transgenic roots, and these nodules displayed a reduced nitrogen fixation rate at 21 dpi. These results strongly suggest that PvMT1A plays an important role in the infection process and nodule development in P. vulgaris during rhizobial symbiosis.

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“…Interestingly, PpSARK in moss was shown as a positive regulator of senescence in salt stress responses and was also suggested to be a negative regulator of senescence [ 131 ]. In common bean’s SARK, it did not coordinate senescence in nodules [ 132 ].…”

Section: Stress-related Lrr-rlks In Plantsmentioning

confidence: 99%

Receptor-like Kinases (LRR-RLKs) in Response of Plants to Biotic and Abiotic Stresses

Soltabayeva

Dauletova

Serik

et al. 2022

Plants

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Plants live under different biotic and abiotic stress conditions, and, to cope with the adversity and severity, plants have well-developed resistance mechanisms. The mechanism starts with perception of the stimuli followed by molecular, biochemical, and physiological adaptive measures. The family of LRR-RLKs (leucine-rich repeat receptor-like kinases) is one such group that perceives biotic and abiotic stimuli and also plays important roles in different biological processes of development. This has been mostly studied in the model plant, Arabidopsis thaliana, and to some extent in other plants, such as Solanum lycopersicum, Nicotiana benthamiana, Brassica napus, Oryza sativa, Triticum aestivum, Hordeum vulgare, Brachypodium distachyon, Medicago truncatula, Gossypium barbadense, Phaseolus vulgaris, Solanum tuberosum, and Malus robusta. Most LRR-RLKs tend to form different combinations of LRR-RLKs-complexes (dimer, trimer, and tetramers), and some of them were observed as important receptors in immune responses, cell death, and plant development processes. However, less is known about the function(s) of LRR-RLKs in response to abiotic and biotic stresses. Here, we give recent updates about LRR-RLK receptors, specifically focusing on their involvement in biotic and abiotic stresses in the model plant, A. thaliana. Furthermore, the recent studies on LRR-RLKs that are homologous in other plants is also reviewed in relation to their role in triggering stress response processes against biotic and abiotic stimuli and/or in exploring their additional function(s). Furthermore, we present the interactions and combinations among LRR-RLK receptors that have been confirmed through experiments. Moreover, based on GENEINVESTIGATOR microarray database analysis, we predict some potential LRR-RLK genes involved in certain biotic and abiotic stresses whose function and mechanism may be explored.

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Molecular and biochemical changes of aging-induced nodules senescence in common bean

Cited by 6 publications

References 78 publications

Mechanisms in plant growth‐promoting rhizobacteria that enhance legume–rhizobial symbioses

Mechanisms in plant growth‐promoting rhizobacteria that enhance legume–rhizobial symbioses

Metallothionein1A Regulates Rhizobial Infection and Nodulation in Phaseolus vulgaris

Receptor-like Kinases (LRR-RLKs) in Response of Plants to Biotic and Abiotic Stresses

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