Abstract Microorganisms that are active and aggressive colonizing the rhizosphere known as rhizobacteria. They able to act biofertilizers, bioprotectants, biostimulants bioremediation. This study aims identify characterize groups of rhizobacteria present in patchouli can produce IAA compounds have ability solubilize phosphate soil. Soil samples were taken from at Purwosari Village, Nagan Raya, ...

In order to select phytotoxin producing rhizobacteria to control weed plants, twenty five bacterial strains previously isolated from the rhizospheres of various plants were grown in a liquid medium and, after cell removal by centrifugation, the liquid phases were freeze-dried and the products were extracted with ethyl acetate/methanol. The extracts were concentrated to dryness under vacuum and ...

Root colonizing bacteria that exert beneficial effects on plant growth have been defined as plant growth promoting rhizobacteria (PGPR). The present study aimed to the production of indole-3-acetic acid (IAA) and siderophore in WR-W2 and MR-AI strains under in vitro condition. Synthesis of IAA and siderophore was checked in presence of different carbon sources in JNFb medium amended with L-tryp...

one of the important mechanisms utilized by the plant growth promoting rhizobacteria (pgpr) is lowering of ethylene levels by the 1-aminocyclopropane-1-carboxylic acid (acc) deaminase enzyme. the mechanism facilitates plant growth and development in the stress conditions. pgpr containing acc deaminase can promote plant growth under stress and overcome the harmful effects. the study aimed to scr...

We determined whether in vitro plant growth regulator production by mycorrhizal fungi is correlated with conifer seedling growth and root IAA concentrations. Container-grown seedlings of interior Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), lodgepole pine (Pinus contorta Dougl.) and ponderosa pine (Pinus ponderosa Dougl.) were inoculated at seeding with ectomycorrhizal fungi having a hig...

Abstract. The use of biofertilizers based on plant growth promoting (PGP) bacteria is a promising direction in agri-biotechnology. purpose was to evaluate the PGP-attributes Bacillus sp. and reveal morphophysiological features rapeseed (Brassica napus L.) when inoculated with these rhizobacteria. Methods. ability strain TO15c isolated from rhizosphere Taraxacum officinale Zack's nitrogen-free m...

The undertaken study was conducted to isolate and characterize the plant growth promoting rhizobacteria from rhizospheric soil of Musa itinerans collected Zaphumi village, Nagaland, Northeast India. purified bacterial isolates were screened for growth-promoting traits namely phosphate solubilization, IAA production, siderophore ammonia production. Out 25 isolates, three best with maximum select...

BACKGROUND All plants in nature harbor a diverse community of endophytic bacteria which can positively affect host plant growth. Changes in plant growth frequently reflect alterations in phytohormone homoeostasis by plant-growth-promoting (PGP) rhizobacteria which can decrease ethylene (ET) levels enzymatically by 1-aminocyclopropane-1-carboxylate (ACC) deaminase or produce indole acetic acid (...