In the present study, bioprospecting aspects of endophytic bacteria, isolated from leaves of 5 mangroves and 2 salt-marsh plant species, were explored. In total, 104 bacterial isolates were isolated from the leaf samples of mangrove plants of Pichavaram, Tamil Nadu. Thirty six fast growing isolates were selected and screened for biological activities. Of 36 isolates, 28 (77%) showed antimicrobi...

Objective: The genus Trichoderma comprises a great number of fungal strains that act as biological control agents, the antagonistic properties of which are based on the activation of multiple mechanisms. Methods: Trichoderma strains exert biocontrol against fungal phytopathogens either indirectly, by competing for nutrients and space, modifying the environmental conditions, or promotin...

The native plant microbiome is composed of diverse microbial communities that influence overall health, with some species known to promote growth and pathogen resistance. Here, we show the antibacterial promoting activities autoclaved culture metabolites (ACM) from endophytic bacteria (NEB). These NEB were isolated a papaya cultivar (var. Cariflora) tolerant bacterial crown rot (BCR) caused by ...

Rice crop is highly vulnerable at all stages of growth to different pathogens that affect the quality and quantity its yield. Among diseases, Bacterial blight rice (Xanthomonas oryzae pv. oryzae), a deadly bacterial disease among most destructive affliction cultivated (Oryza sativa O. glaberrima). In severe epidemics, loss may be as high 75 percent, millions hectares are infected annually. Biol...

Microorganisms and their hosts communicate with each other through an array of signals. The plant hormone auxin (indole-3-acetic acid; IAA) is central in many aspects of plant development. Cyclodipeptides and their derivative diketopiperazines (DKPs) constitute a large class of small molecules synthesized by microorganisms with diverse and noteworthy activities. Here, we present genetic, chemic...

Fourteen endophytic bacterial isolates were isolated from the rhizome of Curcuma longa L. were characterized on the basis of morphology, biochemical characteristics and 16S rRNA gene sequence analysis. The isolates were identified to six strains namely Bacillus cereus (ECL1), Bacillus thuringiensis (ECL2), Bacillus sp. (ECL3), Bacillus pumilis (ECL4), Pseudomonas putida (ECL5), and Clavibacter ...

Strains with 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity can cause plant growth on stress condition. In the presence of bacteria with the ability of ACC deaminase production in the rhizosphere, it is possible to convert the ethylene precursor (ACC) to α-ketobutyrate  and ammonium, reducing the ethylene levels in host plants. In order to measure the power and level of A...