Direct Plant Growth-Promoting Ability of Actinobacteria in Grain Legumes

Salam, Nimaichand; Devi, Asem Mipeshwaree; Li, Wenjun

doi:10.1007/978-981-10-0707-1_1

Cited by 10 publications

(10 citation statements)

References 136 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increased soil bacterial diversity, not only improves the soil ecosystem stability, but also helps to mitigate deterioration of the soil ecological environment. However, almost none of the studies have been reported concerning 16S rRNA gene sequence-based deep bacterial diversity in deserts of Pakistan, which let us to study effects of different non-rhizospheric and rhizospheric bacterial communities in desert steppes (Nimaichand et al 2016). Few arid zones faced alterations in annual rainfall and eventually whole new climatic variation altered bacterial flora too unlike the Cholistan region (Amin et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Insights on comparative bacterial diversity between different arid zones of Cholistan Desert, Pakistan

Amin

Ahmed²,

Khalid

et al. 2020

3 Biotech

Self Cite

View full text Add to dashboard Cite

The present study was conducted to analyze bacterial diversity profile of Cholistan desert located in Pakistan. The study investigates the influence of physicochemical parameters of soil on distribution of different bacteria at all taxonomic levels and also study the distribution pattern between different desert environments, particularly rhizospheric and bulk desert sands. Species richness showed phyla Proteobacteria and Chloroflexi as the dominant OTUs in all the samples. Besides the two phyla, the rhizospheric soils with root remnants were dominated by Firmicutes, Deinococcus-Thermus, Actinobacteria and Acidobacteri, while phylum Thermotogae was present in significant quantity in rhizosheaths devoid of roots. In nonrhizospheric desert soils, a considerable number of OTUs belonged to phyla Proteobacteria, Chloroflexi, Bacteroidetes and Acidobacteria. An important finding from this study is that a bulk portion of the OTUs were assigned to unclassified taxa, indicating a large repertoire of unexplored taxa in the desert ecology of Pakistan. Distribution of taxonomic groups among various regions of the desert was collaborating well with the physicochemical parameters of the sites. The findings of this study establish the fundamental relationships between desert ecosystem, specific native plant and the total bacterial flora. This is the first study of microbial community analysis of any desert in Pakistan and thus, will serve as a future platform to explore further on desert ecosystem functioning by employing the ever-changing biotechnological tools. KeywordsBacterial community • Desert sand • Pyrosequencing • Rhizosphere • 16S rRNA Highlights First report of bacterial diversity profile and distribution pattern of any Desert from Pakistani ecology High level of species richness with large portion of the OTUs as unclassified taxa Distribution of the taxonomic groups among the various regions of the deserts Collaborated well with the physicochemical parameters of the sites This study will serve as a basis to explore further on the desert ecosystem functioning

show abstract

Section: Introductionmentioning

confidence: 99%

Insights on comparative bacterial diversity between different arid zones of Cholistan Desert, Pakistan

Amin

Ahmed²,

Khalid

et al. 2020

3 Biotech

Self Cite

View full text Add to dashboard Cite

show abstract

“…There are important fields of investigation in developing the use of PGPB for ameliorating plant growth, alleviating plants stress, and enhancing plant resistance to pests. Among these PGPB, Actinobacteria (PGPA) are increasingly studied (Nimaichand et al, 2016). Sustainable agriculture is well integrated in the roadmap of industrialized and developing countries.…”

Section: Discussionmentioning

confidence: 99%

“…Phosphorous limitation could prevent plant growth, first because phosphorous is vital and secondly, its bioavailability from the soil is often limited (Feng et al, 2004). Phosphate Solubilizing Bacteria (PSB) including Actinobacteria could increase the availability of soluble phosphate by various mechanisms like production of low molecular weight organic acid, along with the production of hydroxyl and carboxyl groups, serving as a chelating agent to chelate the cations (mainly Ca) bound to phosphate converting them into soluble forms (Kpomblekou-a and Tabatabai, 1994) or by enzymatic actions mostly phosphatase (Solans et al, 2019) and phytase (Sharma et al, 2017), although, it seems that the major action of Actinobacteria was enzymatic (Nimaichand et al, 2016). Phosphate Solubilizing Actinobacteria are often associated with the production of plant growthpromoting regulators, increasing biological nitrogen fixation effectiveness or enhancing the availability of other trace elements such as iron, zinc, etc.…”

Section: Solubilizing Minerals Like Phosphorusmentioning

confidence: 99%

Plant Growth Promoting Actinobacteria, the Most Promising Candidates as Bioinoculants?

Boukhatem¹,

Merabet²,

Tsaki³

2022

Front. Agron.

View full text Add to dashboard Cite

Plant Growth Promoting Bacteria (PGPBs) are a strong ally for sustainable agriculture. They offer an interesting alternative to chemical fertilizers and pesticides. Many microorganisms have been widely documented for their PGPR traits, but actinobacterial microbes which have been increasingly documented only these two past decades for their ability to promote plant growth. Their action on plant health and yield could be either direct, indirect or both. This review will cover articles that have been published on Actinobacteria PGP traits, highlighting the involved mechanisms to reveal their strong potential as microbial fertilizers. Possible strategies to encourage Actinobacteria use as bioinoculants are also discussed.

show abstract

“…Other workers have also reported Streptomyces as one of the commonly occurring diazotrophs from rhizosphere and root tissues of plants [44][45][46]. Many other actinobacterial genera have also been reported to have diazotrophic property [5]. Frankia is a well-known nitrogen-fixer under free-living as well under endosymbiotic conditions [5].…”

Section: Siderophore Activitymentioning

confidence: 99%

“…Many other actinobacterial genera have also been reported to have diazotrophic property [5]. Frankia is a well-known nitrogen-fixer under free-living as well under endosymbiotic conditions [5]. Trujillo et al (2010) [47] reported the genus Micromonospora to be widespread in the root nodules of Lupinus angustifolius and were found to be able to fix atmospheric nitrogen.…”

Section: Siderophore Activitymentioning

confidence: 99%

Untitled

2019

RJLBPCS

View full text Add to dashboard Cite

Free-living actinobacteria were isolated from a limestone mining spoil soil located at Mawsmai in Meghalaya, India. The actinobacterial colonies obtained were screened for plant growth promoting properties based on their ability to produce indole-3-acetic acid and siderophores, their ability to solubilize phosphate and their ability to fix atmospheric nitrogen. Fifteen isolates thirteen of which were Streptomyces were found to produce indole-3-acetic acid above 15µg ml -1 . Eight isolates were found to solubilize phosphate above 350µg ml -1 . Out of these, three were Streptomyces and the remaining five were non-streptomycetes. Ten isolates which were all Streptomyces were found to produce siderophores with halo diameter greater than 25mm. 65% of the isolates, 93% of which were Streptomyces showed the ability to fix atmospheric nitrogen.Therefore, free-living limestone actinobacteria from Meghalaya more importantly Streptomyces showed plant growth promoting potential and some of them warrant further investigation through their interaction with plant systems and to find out if plants can benefit through such plantactinobacteria interactions in vivo.

show abstract

Direct Plant Growth-Promoting Ability of Actinobacteria in Grain Legumes

Cited by 10 publications

References 136 publications

Insights on comparative bacterial diversity between different arid zones of Cholistan Desert, Pakistan

Insights on comparative bacterial diversity between different arid zones of Cholistan Desert, Pakistan

Plant Growth Promoting Actinobacteria, the Most Promising Candidates as Bioinoculants?

Untitled

Contact Info

Product

Resources

About