<scp>ACC</scp> deaminase‐producing <i>Brevibacterium linens</i><scp>RS16</scp> enhances heat‐stress tolerance of rice (<i>Oryza sativa</i> L.)

Choi, Jeong‐Yun; Choudhury, Aritra Roy; Walitang, Denver; Lee, Yi; Sa, Tongmin

doi:10.1111/ppl.13584

Cited by 18 publications

(3 citation statements)

References 59 publications

(98 reference statements)

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“…The inoculation of the endophytic bacterium Brevibacterium linens RS16 in rice plants reduced the emission of the plant stress hormone ethylene due to its 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity. Plants inoculated with B. Linens RS16 also showed increased levels of small HSPs ( Choi et al., 2022 ).…”

Section: The Role Of Endophytes In Protection From Abiotic Stressesmentioning

confidence: 99%

Exploring the potential of endophyte-plant interactions for improving crop sustainable yields in a changing climate

Sena,

Mica,

Valè

et al. 2024

Front. Plant Sci.

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Climate change poses a major threat to global food security, significantly reducing crop yields as cause of abiotic stresses, and for boosting the spread of new and old pathogens and pests. Sustainable crop management as a route to mitigation poses the challenge of recruiting an array of solutions and tools for the new aims. Among these, the deployment of positive interactions between the micro-biotic components of agroecosystems and plants can play a highly significant role, as part of the agro-ecological revolution. Endophytic microorganisms have emerged as a promising solution to tackle this challenge. Among these, Arbuscular Mycorrhizal Fungi (AMF) and endophytic bacteria and fungi have demonstrated their potential to alleviate abiotic stresses such as drought and heat stress, as well as the impacts of biotic stresses. They can enhance crop yields in a sustainable way also by other mechanisms, such as improving the nutrient uptake, or by direct effects on plant physiology. In this review we summarize and update on the main types of endophytes, we highlight several studies that demonstrate their efficacy in improving sustainable yields and explore possible avenues for implementing crop-microbiota interactions. The mechanisms underlying these interactions are highly complex and require a comprehensive understanding. For this reason, omic technologies such as genomics, transcriptomics, proteomics, and metabolomics have been employed to unravel, by a higher level of information, the complex network of interactions between plants and microorganisms. Therefore, we also discuss the various omic approaches and techniques that have been used so far to study plant-endophyte interactions.

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Section: The Role Of Endophytes In Protection From Abiotic Stressesmentioning

confidence: 99%

Exploring the potential of endophyte-plant interactions for improving crop sustainable yields in a changing climate

Sena,

Mica,

Valè

et al. 2024

Front. Plant Sci.

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“…As a result, PGPR-produced ACC deaminase shields plants from the detrimental effects of ethylene when exposed to abiotic stress ( Sapre et al, 2018a , b ). Some widely acclaimed bacterial genera synthesizing ACC deaminase include Achromobacter ( Sun et al, 2022 ), Brevibacterium linens ( Choi et al, 2022 ), Bacillus amyloliquefaciens ( Murali et al, 2021 ), Ensiferadhaerens ( Katiyar et al, 2021 ), Variovorax sp. ( Bessadok et al, 2020 ), Enterobacter sp.…”

Section: Introductionmentioning

confidence: 99%

Bacterial ACC deaminase: Insights into enzymology, biochemistry, genetics, and potential role in amelioration of environmental stress in crop plants

et al. 2023

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Growth and productivity of crop plants worldwide are often adversely affected by anthropogenic and natural stresses. Both biotic and abiotic stresses may impact future food security and sustainability; global climate change will only exacerbate the threat. Nearly all stresses induce ethylene production in plants, which is detrimental to their growth and survival when present at higher concentrations. Consequently, management of ethylene production in plants is becoming an attractive option for countering the stress hormone and its effect on crop yield and productivity. In plants, ACC (1-aminocyclopropane-1-carboxylate) serves as a precursor for ethylene production. Soil microorganisms and root-associated plant growth promoting rhizobacteria (PGPR) that possess ACC deaminase activity regulate growth and development of plants under harsh environmental conditions by limiting ethylene levels in plants; this enzyme is, therefore, often designated as a “stress modulator.” TheACC deaminase enzyme, encoded by the AcdS gene, is tightly controlled and regulated depending upon environmental conditions. Gene regulatory components of AcdS are made up of the LRP protein-coding regulatory gene and other regulatory components that are activated via distinct mechanisms under aerobic and anaerobic conditions. ACC deaminase-positive PGPR strains can intensively promote growth and development of crops being cultivated under abiotic stresses including salt stress, water deficit, waterlogging, temperature extremes, and presence of heavy metals, pesticides and other organic contaminants. Strategies for combating environmental stresses in plants, and improving growth by introducing the acdS gene into crop plants via bacteria, have been investigated. In the recent past, some rapid methods and cutting-edge technologies based on molecular biotechnology and omics approaches involving proteomics, transcriptomics, metagenomics, and next generation sequencing (NGS) have been proposed to reveal the variety and potential of ACC deaminase-producing PGPR that thrive under external stresses. Multiple stress-tolerant ACC deaminase-producing PGPR strains have demonstrated great promise in providing plant resistance/tolerance to various stressors and, therefore, it could be advantageous over other soil/plant microbiome that can flourish under stressed environments.

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“…Inoculation with four Pseudomonas strains that have 1‐aminocyclopropane 1‐carboxylic acid (ACC) deaminase activity, as well as the ability to produce gibberellic acid, abscisic acid, indole acetic acid, as well as exopolysaccharides was shown to confer drought tolerance in Arabidopsis (Yasmin et al, 2022). Similarly, inoculation of Brevibacterium linens RS16 that has ACC deaminase activity conferred heat stress tolerance in rice by reducing ethylene emissions, thereby decreasing ROS accumulation and enhancing the expression of HSP16 and HSP26 (Choi et al, 2022).…”

mentioning

confidence: 99%

Raising crops for dry and saline lands: Challenges and the way forward

Singh

Gupta

Singla‐Pareek

et al. 2022

Physiologia Plantarum

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ACC deaminase‐producing Brevibacterium linensRS16 enhances heat‐stress tolerance of rice (Oryza sativa L.)

Cited by 18 publications

References 59 publications

Exploring the potential of endophyte-plant interactions for improving crop sustainable yields in a changing climate

Exploring the potential of endophyte-plant interactions for improving crop sustainable yields in a changing climate

Bacterial ACC deaminase: Insights into enzymology, biochemistry, genetics, and potential role in amelioration of environmental stress in crop plants

Raising crops for dry and saline lands: Challenges and the way forward

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