Enhanced growth and nodulation of pigeon pea by co-inoculation of Bacillus strains with Rhizobium spp.

Rajendran, G.; Sing, Falguni; Desai, Anjana J.; Archana, G.

doi:10.1016/j.biortech.2007.06.057

Cited by 158 publications

(86 citation statements)

References 31 publications

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“…Previous studies demonstrated that coinoculating legumes with rhizobia and various Bacillus species, including B. subtilis, resulted in altered root architecture and enhanced nodulation for bean [33,34], peanut [35], pigeon pea [36], and soybean [12,37]. In preliminary experiments, we found that two legume species used as models for determinate and indeterminate nodule formation, Lotus japonicus and Medicago truncatula, respectively, showed enhanced lateral root formation in response to B. simplex inoculation.…”

Section: Introductionmentioning

confidence: 86%

Bacillus simplex—A Little Known PGPB with Anti-Fungal Activity—Alters Pea Legume Root Architecture and Nodule Morphology When Coinoculated with Rhizobium leguminosarum bv. viciae

et al. 2013

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Two strains, 30N-5 and 30VD-1, identified as Bacillus simplex and B. subtilis, were isolated from the rhizospheres of two different plants, a Podocarpus and a palm, respectively, growing in the University of California, Los Angeles (UCLA) Mildred E. Mathias Botanical Garden. B. subtilis is a well-known plant-growth promoting bacterial species, but B. simplex is not. B. simplex 30N-5 was initially isolated on a nitrogen-free medium, but no evidence for nitrogen fixation was found. Nevertheless, pea OPEN ACCESSAgronomy 2013, 3 596 plants inoculated with B. simplex showed a change in root architecture due to the emergence of more lateral roots. When Pisum sativum carrying a DR5::GUSA construct, an indicator for auxin response, was inoculated with either B. simplex 30N-5 or its symbiont Rhizobium leguminosarum bv. viciae 128C53, GUS expression in the roots was increased over the uninoculated controls. Moreover, when pea roots were coinoculated with either B. simplex 30N-5 or B. subtilis 30VD-1 and R. leguminosarum bv. viciae 128C53, the nodules were larger, clustered, and developed more highly branched vascular bundles. Besides producing siderophores and solubilizing phosphate, the two Bacillus spp., especially strain 30VD-1, exhibited anti-fungal activity towards Fusarium. Our data show that combining nodulating, nitrogen-fixing rhizobia with growth-promoting bacteria enhances plant development and strongly supports a coinoculation strategy to improve nitrogen fixation, increase biomass, and establish greater resistance to fungal disease.

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Section: Introductionmentioning

confidence: 86%

Bacillus simplex—A Little Known PGPB with Anti-Fungal Activity—Alters Pea Legume Root Architecture and Nodule Morphology When Coinoculated with Rhizobium leguminosarum bv. viciae

et al. 2013

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“…Certain NRE bacteria have beneficial effects on the host plants, including plant growth promotion (Vessey, 2003;Kuklinsky-Sobral et al, 2004;Ibañez et al, 2009;El-Tarabily et al, 2010;Tariq et al, 2014), nitrogen fixation (Andrews et al, 2010), siderophore mediated interactions (Rajendran et al, 2008;Andrews et al, 2010), increased promotion of plant stress tolerance (Andrews et al, 2010) and biological control of plant pathogens (El-Tarabily et al, 2010). Most legumes are good pioneer species, adapted to low nutrient soils and/or environments with heavy metals (Gonzalez-Andres et al, 2005;Vidal et al, 2009;Azcon et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Most legumes are good pioneer species, adapted to low nutrient soils and/or environments with heavy metals (Gonzalez-Andres et al, 2005;Vidal et al, 2009;Azcon et al, 2010). Multiple studies report on the beneficial effect of co-inoculating rhizobia with other bacteria (Zhang et al, 1996;Parmar and Dadarwal, 1999;Rajendran et al, 2008;Egamberdieva et al, 2010). All previously mentioned studies suggest that besides rhizobia, NRE are present inside root nodules, which may have beneficial effects on the host plant.…”

Section: Introductionmentioning

confidence: 99%

A large diversity of non-rhizobial endophytes found in legume root nodules in Flanders (Belgium)

Meyer

Beuf

Vekeman

et al. 2015

Soil Biology and Biochemistry

112

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Statistical analysis grouped the investigated plant species into six clusters according to the presence of particular NRE. However, no correlations could be found within these six clusters towards plant tribes or ecoregions the plants had been sampled from. Cluster analysis of the ecoregions according to the presence of NRE, revealed correlations between bacterial genera and those areas. However, groups present in the ecoregions did not correlate with the groups present in the different plant clusters. When combining our previous study on rhizobial diversity recovered from the same sampling campaign (De Meyer et al., 2011) with the current study, 84.1% of the isolates belonged to the traditional rhizobia groups and only 15.9% were NRE. The Loamy ecoregion yielded the lowest number of culturable NRE (8.04%) and the Campine ecoregion the highest number (24.19%). The present study highlights the frequent presence of these NRE in root nodules. The occurrence of certain rhizobia was correlated with the presence of particular NRE, suggesting their presence may not be accidental, however their functions remain unclear at this point.

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“…tropici CIAT899 stimulated number of nodules of common bean which was translated into higher level of accumulated nitrogen. Rajendran et al ( 2008 ) and Roseline et al ( 2008 ) indicated that Bacillus sp. and Azospirillum sp.…”

Section: Biological Nitrogen Fixationmentioning

confidence: 95%

“…They explained that the bacterial cultures produced considerable amount of siderophore which could have stimulated chickpea growth. Rajendran et al ( 2008 ) used three Bacillus strains, NR2, NR4, and NR6, and reported growth promotion of pigeon pea with respect to increase in plant fresh weight, chlorophyll content, nodule number, and nodule fresh weight when co-inoculated with Rhizobium spp. strain IC3123.…”

Section: Production Of Siderophoresmentioning

confidence: 99%

Potential of Rhizosphere Bacteria for Improving Rhizobium-Legume Symbiosis

Mehboob

Naveed

Zahir

et al. 2013

Plant Microbe Symbiosis: Fundamentals and Advances

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Enhanced growth and nodulation of pigeon pea by co-inoculation of Bacillus strains with Rhizobium spp.

Cited by 158 publications

References 31 publications

Bacillus simplex—A Little Known PGPB with Anti-Fungal Activity—Alters Pea Legume Root Architecture and Nodule Morphology When Coinoculated with Rhizobium leguminosarum bv. viciae

Bacillus simplex—A Little Known PGPB with Anti-Fungal Activity—Alters Pea Legume Root Architecture and Nodule Morphology When Coinoculated with Rhizobium leguminosarum bv. viciae

A large diversity of non-rhizobial endophytes found in legume root nodules in Flanders (Belgium)

Potential of Rhizosphere Bacteria for Improving Rhizobium-Legume Symbiosis

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