Publications by authors named "Dhivya P Thenappan"

This study demonstrated the plant growth-promoting capabilities of native actinobacterial strains obtained from different regions of the rice plant, including the rhizosphere (FT1, FTSA2, FB2, and FH7) and endosphere (EB6). We delved into the molecular mechanisms underlying the beneficial effects of these plant-microbe interactions by conducting a transcriptional analysis of a select group of key genes involved in phytohormone pathways. Through in vitro screening for various plant growth-promoting (PGP) traits, all tested isolates exhibited positive traits for indole-3-acetic acid synthesis and siderophore production, with FT1 being the sole producer of hydrogen cyanide (HCN).

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Article Synopsis
  • The study investigates the microbiome of olives, specifically the bacterial and fungal communities in the rhizosphere and root endosphere of the Arbequina cultivar across three orchards in Texas during different seasons.
  • Phylum Proteobacteria was the dominant bacterial group, while Ascomycota was the leading fungal group observed, with varying diversity noted in different locations and seasons.
  • Findings suggest that specific environmental factors influence microbial diversity, showing that the rhizosphere's richness and diversity are significantly higher in certain areas, indicating its crucial role in the health and establishment of olives in non-traditional growing regions.
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sp. strain FB2 is an actinomycete isolated from rice rhizosphere. A whole-genome assembly of the strain FB2 comprised 7,727,571 bp (number of contigs, 55; GC content, 71.

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The targeted application of plant growth-promoting rhizobacteria (PGPR) provides the key for a future sustainable agriculture with reduced pesticide application. PGPR interaction with the indigenous microbiota is poorly understood, but essential to develop reliable applications. Therefore, SPA-P69 was applied as a seed coating and in combination with a fungicide based on the active ingredients fludioxonil, metalaxyl-M, captan and ziram.

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