Unravelling the biochemistry and genetics of ACC deaminase-An enzyme alleviating the biotic and abiotic stress in plants

Gupta, Shikha; Pandey, Sangeeta

doi:10.1016/j.plgene.2019.100175

Cited by 52 publications

(28 citation statements)

References 86 publications

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“…Several of them had orange and red pigmentation due to carotenoids that are formed to help protect bacteria from UV radiation 2 . Siderophore production and IAA synthesis are related to efficient nutrient uptake and significant enhancement of the root system, respectively [31][32][33] , especially during stress periods 34 . Siderophore-producing bacteria can indirectly promote plant growth via preventing the proliferation of pathogens by decreasing the amount of available iron 4,8 .…”

Section: Discussionmentioning

confidence: 99%

“…at 14 days after sowing the inoculated seeds. www.nature.com/scientificreports/ of IAA promote the formation of lateral roots 34 , and the increase root length and surface area 8 , which might be essential for tomato plants grown under no irrigation scheme in the drought-stricken areas of Santorini. Ethylene has multiple negative roles in plant root growth, while reduced ethylene emission has been correlated with enhanced nutrient and water uptake 34,40,41 .…”

Section: Discussionmentioning

confidence: 99%

“…www.nature.com/scientificreports/ of IAA promote the formation of lateral roots 34 , and the increase root length and surface area 8 , which might be essential for tomato plants grown under no irrigation scheme in the drought-stricken areas of Santorini. Ethylene has multiple negative roles in plant root growth, while reduced ethylene emission has been correlated with enhanced nutrient and water uptake 34,40,41 . Colonization of roots by these strains may help plants alleviate the ethylene-induced effect on root and shoot development, especially under salt stress 42 , by restoring normal plant development 8 .…”

Section: Discussionmentioning

confidence: 99%

“…To evaluate the production of organic acids, the strains were grown aerobically in rich medium broth at 27 °C for up to 24 h and the supernatant was incubated in sucrose-tryptone medium, as described by Abbamondi et al 34 . When Alizarine red was added, the change of the solution's color to yellow was considered as positive signal.…”

Section: Methodsmentioning

confidence: 99%

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Plant growth promoting rhizobacteria isolated from halophytes and drought-tolerant plants: genomic characterisation and exploration of phyto-beneficial traits

Leontidou

Genitsaris

Παπαδοπούλου

et al. 2020

Sci Rep

132

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Plant growth promoting rhizobacteria (PGPR) are able to provide cross-protection against multiple stress factors and facilitate growth of their plant symbionts in many ways. The aim of this study was to isolate and characterize rhizobacterial strains under natural conditions, associated with naturally occurring representatives of wild plant species and a local tomato cultivar, growing in differently stressed Mediterranean ecosystems. A total of 85 morphologically different rhizospheric strains were isolated; twenty-five exhibited multiple in vitro PGP-associated traits, including phosphate solubilization, indole-3-acetic acid production, and 1-aminocyclopropane-1-carboxylate deaminase activity. Whole genome analysis was applied to eight selected strains for their PGP potential and assigned seven strains to Gammaproteobacteria, and one to Bacteroidetes. The genomes harboured numerous genes involved in plant growth promotion and stress regulation. They also support the notion that the presence of gene clusters with potential PGP functions is affirmative but not necessary for a strain to promote plant growth under abiotic stress conditions. The selected strains were further tested for their ability to stimulate growth under stress. This initial screening led to the identification of some strains as potential PGPR for increasing crop production in a sustainable manner.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Plant growth promoting rhizobacteria isolated from halophytes and drought-tolerant plants: genomic characterisation and exploration of phyto-beneficial traits

Leontidou

Genitsaris

Παπαδοπούλου

et al. 2020

Sci Rep

132

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“…69,70 . In drought stress, synthesis of ethylene increase by conversion of S-adenosylmethionine (SAM) into 1-aminocylcopropene-1-carboxylase (ACC), the precursor of ethylene, in presence of ACC synthase 71 . PGPR act as sink of ACC by controlling ethylene formation using the ACC (1-aminocyclopropane-1-carboxylate) deaminase enzyme.…”

Section: Acc Deaminase Production By Rhizobacteriamentioning

confidence: 99%

Rhizobacteriome: Promising Candidate for Conferring Drought Tolerance in Crops

Yadav¹,

Raghav²,

Sharma³

et al. 2020

J. Pure Appl. Microbiol.

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Drought is a global water shortage problem which poses challenge to crop productivity. Novel strategies are being tried to find out solution to sustain agriculture under drought conditions. Rhizobacteriome is an exclusive genetic material of bacteria resident to rhizosphere plays critical role to health and yield of plant. The interaction of rhizobacteriome with plant provides basis for protecting plants from various abiotic and biotic stresses. Plant growth promoting rhizobacteria (PGPR) are root-colonizing bacteria which produce array of enzymes and metabolites that assist plants to withstand harsh environmental conditions. Various formulations of rhizobacteria are being applied to enhance the tolerance or endurance to drought in crops which in turn increase crop productivity. This could be a one of the promising methods with wide potentiality to improve the growth and yield of crops under limited water resources and changing climatic conditions to ensure food security of the globe. In this review, we summarize (1) existing knowledge and understanding about the rhizobacteria, (2) their role in imparting tolerance to crops in drought conditions and (3) discuss future line of work in this frontier research area.

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Impact of Biofertilizers on Horticultural Crops

Wong

Teh

2021

Biofertilizers

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Unravelling the biochemistry and genetics of ACC deaminase-An enzyme alleviating the biotic and abiotic stress in plants

Cited by 52 publications

References 86 publications

Plant growth promoting rhizobacteria isolated from halophytes and drought-tolerant plants: genomic characterisation and exploration of phyto-beneficial traits

Plant growth promoting rhizobacteria isolated from halophytes and drought-tolerant plants: genomic characterisation and exploration of phyto-beneficial traits

Rhizobacteriome: Promising Candidate for Conferring Drought Tolerance in Crops

Impact of Biofertilizers on Horticultural Crops

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