Exploring plant growth promoting potential of non rhizobial root nodules endophytes of Vigna radiata

Pandya, Maharshi; Rajput, Mahendrapal Singh; Rajkumar, Shalini

doi:10.1134/s0026261715010105

Cited by 63 publications

(27 citation statements)

References 37 publications

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“…Some are also lacking in pathogenicity features (De Lajudie et al 1999 ). Recently, several studies have declared A. tumefaciens as true plant endophytes with growth promoting abilities and have confirmed its occurrence and coexistence along with different endophyte species in diverse range of host plants (Procópio et al 2009 ; Liu et al 2010 ; Luo et al 2011 ; Chen et al 2012 ; Rashid et al 2012 ; Mufti et al 2015 ; Pandya et al 2015 ). In our present study, A. tumefaciens is identified among the endophytes of in vitro peach rootstocks cultures and it has shown the best plant growth promoting properties as compared to other endophytes isolated.…”

Section: Resultsmentioning

confidence: 99%

Identification and characterization of endophytic bacteria isolated from in vitro cultures of peach and pear rootstocks

Liaqat

Eltem

2016

3 Biotech

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Endophytes are microorganisms which live symbiotically with almost all varieties of plant and in turn helping the plant in a number of ways. Instead of satisfactory surface sterilization approaches, repeatedly occurring bacterial growth on in vitro rootstock cultures of peach and pear was identified and isolated as endophytic bacteria in our present study. Five different isolates from peach rootstocks were molecularly identified by 16S rRNA gene sequencing as Brevundimonas diminuta, Leifsonia shinshuensis, Sphingomonas parapaucimobilis Brevundimonas vesicularis, Agrobacterium tumefaciens while two endophytic isolates of pear were identified as Pseudoxanthomonas mexicana, and Stenotrophomonas rhizophilia. Identified endophytes were also screened for their potential of plant growth promotion according to indoleacetic acid (IAA) production, nitrogen fixation, solubilization of phosphate and production of siderophore. All seven endophytic isolates have shown positive results for IAA, nitrogen fixation and phosphate solubilization tests. However, two out of seven isolates showed positive results for siderophore production. On the basis of these growth promoting competences, isolated endophytes can be presumed to have significant influence on the growth of host plants. Future studies required to determine the antimicrobial susceptibility profile and potential application of these isolates in biological control, microbial biofertilizers and degradative enzyme production.

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Section: Resultsmentioning

confidence: 99%

Identification and characterization of endophytic bacteria isolated from in vitro cultures of peach and pear rootstocks

Liaqat

Eltem

2016

3 Biotech

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“…Genes for the uptake and degradation of phosphonates, which containing the highly stable C-P bond, and for a phosphate-specific transport system, were found in all analysed genomes [27]. Phosphorus solubilisation has been confirmed by P. elgii [30], P. kribbensis [31], P. macerans [32], P. mucilaginosus [33], P. polymyxa [32], P. xylanilyticus [34], and several unclassified strains.…”

Section: Plant Growth Promotionmentioning

confidence: 99%

Current knowledge and perspectives of Paenibacillus: a review

et al. 2016

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Isolated from a wide range of sources, the genus Paenibacillus comprises bacterial species relevant to humans, animals, plants, and the environment. Many Paenibacillus species can promote crop growth directly via biological nitrogen fixation, phosphate solubilization, production of the phytohormone indole-3-acetic acid (IAA), and release of siderophores that enable iron acquisition. They can also offer protection against insect herbivores and phytopathogens, including bacteria, fungi, nematodes, and viruses. This is accomplished by the production of a variety of antimicrobials and insecticides, and by triggering a hypersensitive defensive response of the plant, known as induced systemic resistance (ISR). Paenibacillus-derived antimicrobials also have applications in medicine, including polymyxins and fusaricidins, which are nonribosomal lipopeptides first isolated from strains of Paenibacillus polymyxa. Other useful molecules include exo-polysaccharides (EPS) and enzymes such as amylases, cellulases, hemicellulases, lipases, pectinases, oxygenases, dehydrogenases, lignin-modifying enzymes, and mutanases, which may have applications for detergents, food and feed, textiles, paper, biofuel, and healthcare. On the negative side, Paenibacillus larvae is the causative agent of American Foulbrood, a lethal disease of honeybees, while a variety of species are opportunistic infectors of humans, and others cause spoilage of pasteurized dairy products. This broad review summarizes the major positive and negative impacts of Paenibacillus: its realised and prospective contributions to agriculture, medicine, process manufacturing, and bioremediation, as well as its impacts due to pathogenicity and food spoilage. This review also includes detailed information in Additional files 1, 2, 3 for major known Paenibacillus species with their locations of isolation, genome sequencing projects, patents, and industrially significant compounds and enzymes. Paenibacillus will, over time, play increasingly important roles in sustainable agriculture and industrial biotechnology.Electronic supplementary materialThe online version of this article (doi:10.1186/s12934-016-0603-7) contains supplementary material, which is available to authorized users.

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“…These bacteria contribute to plant growth through the N supply, and also by some specific mechanisms, such as the production of hormones, phosphate solubilization, and antagonism to pathogens (Moreira et al, 2010). The mechanisms used by PGPB during the promotion of plant growth are well known, and include plant nutrient-acquisition strategies, such as through BNF and the excretion of hormones that modulate the plant growth (Pandya et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Diversity of plant growth-promoting bacteria associated with sugarcane

Antunes¹,

Lyra²,

Ollero³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. The sugarcane (Saccharum spp) presents economic importance, mainly for tropical regions, being an important Brazilian commodity. However, this crop is strongly dependent on fertilizers, mainly nitrogen (N). This study assessed the plant growth-promoting bacteria (PGPB) associated with sugarcane that could be used as a potential inoculant to the crop. We evaluated the genetic diversity of PGPB in the plant tissue of sugarcane varieties (RB 867515, RB 1011, and RB 92579). The primer BOX-A1R was used to differentiate the similar isolated and further sequencing 16S rRNA ribosomal gene. The 16S rRNA gene showed the presence of seven different genera distributed into four groups, the genus Bacillus, followed by Paenibacillus (20%), Burkholderia (14%), Herbaspirillum (6%), Pseudomonas (6%), Methylobacterium (6%), and Brevibacillus (3%). The molecular characterization of endophytic isolates from sugarcane revealed a diversity of bacteria colonizing this plant, with a possible biotechnological potential to be used as inoculant and biofertilizers.

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Exploring plant growth promoting potential of non rhizobial root nodules endophytes of Vigna radiata

Cited by 63 publications

References 37 publications

Identification and characterization of endophytic bacteria isolated from in vitro cultures of peach and pear rootstocks

Identification and characterization of endophytic bacteria isolated from in vitro cultures of peach and pear rootstocks

Current knowledge and perspectives of Paenibacillus: a review

Diversity of plant growth-promoting bacteria associated with sugarcane

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