Isolation of ACC deaminase-producing habitat-adapted symbiotic bacteria associated with halophyte Limonium sinense (Girard) Kuntze and evaluating their plant growth-promoting activity under salt stress

Qin, Sheng; Zhang, Yue-Ji; Yuan, Bo; Xu, Pei-Yuan; Xing, Ke; Wang, Jun; Jiang, Ji-Hong

doi:10.1007/s11104-013-1918-3

Cited by 201 publications

(115 citation statements)

References 61 publications

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“…Eighty-nine percent isolates were able to grow at 12% NaCl, and this is similar to the finding that 84% isolates from the halophyte Limonium sinense could grow at 13% NaCl (Qin et al 2014). Also, 100% isolates could grow in 20% PEG, agreeing with the result that 100% strains from the root of Phoenix dactylifera L. located in a desert oasis grew at low water activities in the presence of 20% PEG (Cherif et al 2015).…”

Section: Discussionsupporting

confidence: 85%

“…Currently, endophytic bacteria are attracting increasing attention not only for their promotion of plant growth and control of plant diseases (Hallmann et al 2011), but also for their stress tolerance and improvement of plant growth in an extreme environmen (Forchetti et al 2010;Jha et al 2011;Karthikeyan et al 2012;Ali et al 2014;Naveed et al 2014a, b;Qin et al 2014;Cherif et al 2015). Phoenix dactylifera L. root endophytic bacteria that were isolated from the environment of desert oasis promoted plant growth under drought conditions (Cherif et al 2015).…”

Section: Discussionmentioning

confidence: 99%

“…The use of bacterial endophytes (Pseudomonas fluorescens YsS6 and P. migulae 8R6) has the potential to facilitate tomato plant growth under high salt contents (Ali et al 2014). Isolates from the halophyte Limonium sinense (Girard) Kuntze, which possessed ACC deaminase activity could enhance plant growth under saline stress conditions (Qin et al 2014). The endophytic bacterium A. xylosoxidans that was isolated from the root tissue of Catharanthus roseus was able to mitigate salt stress in C. roseus (Karthikeyan et al 2012).…”

mentioning

confidence: 99%

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Characterisation of endophytic bacteria from a desert plant Lepidium perfoliatum L.

Li¹,

Chen²,

An³

2017

Plant Prot. Sci.

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Li Y., Cheng C., An D. (2017): Characterisation of endophytic bacteria from a desert plant Lepidium perfoliatum L. Plant Protect. Sci., 53: 32-43.Sixty-two endophytic bacteria from the leaves, roots, and stems of healthy Lepidium perfoliatum L. were isolated and characterised. From the results, 89, 87, 90, and 97% isolates could tolerate 12% NaCl, 30% PEG 6000, 50°C and pH 10, respectively. 74% isolates could form a biofilm. Besides, 28 isolates could improve the germination rate of host seeds under different degree of drought stress. These data suggest that the endophyte isolates show considerable resistance to abiotic stress and assist their plant hosts to germinate under drought stress.

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Characterisation of endophytic bacteria from a desert plant Lepidium perfoliatum L.

Li¹,

Chen²,

An³

2017

Plant Prot. Sci.

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“…Although ACC-deaminase containing rhizobacteria have previously been shown to improve plant growth under salt stress (Mayak et al 2004;Bal et al 2013;Qin et al 2014), this study is the first to investigate ion homeostasis using nutrient flow modelling, and to demonstrate both stomatal and non-stomatal (F v /F m and ETR) effects of ACC-deaminase containing rhizobacteria on photosynthesis. Although the relative importance of these different mechanisms remains to be established, V. paradoxus 5C-2 may be an important and economic means of decreasing the deleterious effects of saline soils on plant growth.…”

Section: Discussionmentioning

confidence: 98%

Rhizosphere bacteria containing 1-aminocyclopropane-1- carboxylate deaminase increase growth and photosynthesis of pea plants under salt stress by limiting Na+ accumulation

Wang

Dodd

Belimov

et al. 2016

Functional Plant Biol.

163

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Abstract. Although plant salt tolerance has been improved by soil inoculation with rhizobacteria containing the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase (which metabolises ACC, the immediate precursor of the phytohormone ethylene), it is not always clear whether ion homeostasis and plant water relations are affected. When pea (Pisum sativum L. cv. Alderman) was grown with 70 and 130 mM NaCl, the ACC-deaminase containing rhizobacterium Variovorax paradoxus 5C-2 increased total biomass by 25 and 54% respectively. Nutrient flow modelling showed that V. paradoxus 5C-2 increased K uptake and root to shoot K flow, but decreased Na flow and increased Na deposition in roots. Thus, shoot K + : Na + ratio increased following V. paradoxus 5C-2 inoculation. At 70 and 130 mM NaCl, rhizobacterial inoculation decreased stomatal resistance by 14 and 31% and decreased xylem balancing pressure by 7 and 21% respectively. Furthermore, rhizobacterial inoculation improved photosynthetic efficiency (F v /F m ) by 12 and 19% and increased maximal electron transport rate (ETR) by 18 and 22% at 70 and 130 mM NaCl respectively. Thus V. paradoxus 5C-2 mitigates salt stress by improving water relations, ion homeostasis and photosynthesis of pea plants, and may provide an economic means of promoting growth of plants exposed to salt stress.Additional keywords: ion homeostasis, maximal electron transport rate, nutrient flow modelling, photosynthetic efficiency, water relations.

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“…Improved plant growth in 150 mM NaCl containing soils was demonstrated for the plants inoculated with the A. xylosoxidans AUM54 strain. Recently, the study by Qin et al (2014) revealed that halophyte plant Limonium sinense was naturally associated with ACC deaminase producing putative endophytic bacteria that might play important role in higher salinity tolerance of the plant. Thirteen isolates possessing ACC deaminase activity were obtained that belonged to genera: Bacillus, Pseudomonas, Klebsiella, Serratia, Arthrobacter, Streptomyces, Isoptericola and Microbacterium.…”

Section: Role Of Endophytes In Adaptation Of Agricultural Crops To Bimentioning

confidence: 99%

Bacterial endophytes in agricultural crops and their role in stress tolerance: a review

Miliūtė

Buzaitė

Baniulis

et al. 2015

Zemdirbyste-Agriculture

205

112

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Bacterial endophytes are a class of endosymbiotic microorganisms widespread among plants that colonize intercellular and intracellular spaces of all plant compartments and do not cause plant disease or significant morphological changes. Plant and endophytic bacteria association includes vast diversity of bacterial taxa and plant hosts and in this review we present an overview of taxonomic composition of endophytes identified in common agricultural crops. Further, during the last decade, new aspects of the microbial diversity have emerged with application of new metagenomic analysis methods in studies of bacterial endophytes. Endophytic bacteria community structure is influenced by plant genotype, abiotic and biotic factors such as environment conditions, microbe -microbe interactions and plant -microbe interactions. Agricultural practices, such as soil tillage, irrigation, use of pesticides and fertilizers have a major effect on function and structure of soil and endophytic microbial populations. Therefore, the use of agricultural practices that maintain natural diversity of plant endophytic bacteria is becoming an important element of sustainable agriculture that could ensure plant productivity and quality of agricultural production. The diverse endophytic microbial communities play integral and unique role in the functioning of agroecosystems. Endophytic bacteria have been shown to have several beneficial effects on their host plant, including growth promoting activity, modulation of plant metabolism and phytohormone signalling that leads to adaptation to environmental abiotic or biotic stress. Use of endophytic bacteria presents a special interest for development of agricultural applications that ensure improved crop performance under cold, draught or contaminated soil stress conditions or enhanced disease resistance.

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Isolation of ACC deaminase-producing habitat-adapted symbiotic bacteria associated with halophyte Limonium sinense (Girard) Kuntze and evaluating their plant growth-promoting activity under salt stress

Cited by 201 publications

References 61 publications

Characterisation of endophytic bacteria from a desert plant Lepidium perfoliatum L.

Characterisation of endophytic bacteria from a desert plant Lepidium perfoliatum L.

Rhizosphere bacteria containing 1-aminocyclopropane-1- carboxylate deaminase increase growth and photosynthesis of pea plants under salt stress by limiting Na+ accumulation

Bacterial endophytes in agricultural crops and their role in stress tolerance: a review

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