The isoflavones, daidzein and genistein, have been isolated and identified as the major inducers of nod genes of Bradyrhizobium japonicum. The common nod genes of rhizobia are in turn responsible for stimulating root hair curling and cortical root cell division, the earliest steps in the host response. This study evaluated whether there was a relationship between root isoflavonoid production an...

In this work the bio-availability of amino acids for the root-colonizing Pseudomonas fluorescens strain WCS365 in the tomato rhizosphere was studied. The amino acid composition of axenically collected tomato root exudate was determined. The results show that aspartic acid, glutamic acid, isoleucine, leucine, and lysine are the major amino acid components. The concentrations of individual amino ...

HIGHLIGHTS Trichoderma inoculation increased the total biomass, seedling height, root length, area, diameter, number of tips, and growth potential seedlings. increases resistance bean plant to Rhizoctonia pathogen. Among improved isolates Trichoderma, ChBD13 ChBD15 showed better performance in terms growth.

Sclerotinia sclerotiorum is a phytopathogenic fungus that causes wilting and white rot in several species such as strawberry. The overuse of agrochemicals has caused environmental pollution plant resistance to phytopathogens. Inoculation crops with beneficial microorganisms arbuscular mycorrhizae (AM), plant-growth-promoting rhizobacteria (PGPR), their metabolites considered an alternative agro...

The objective of this work was to identify sources of resistance to dry root rot induced by Fusarium sp. in cassava accessions. A macroconidial suspension (20 μL) of 11 Fusarium sp. isolates was inoculated in cassava roots, from 353 acessions plus seven commercial varieties. Ten days after inoculation, the total area colonized by the pathogen on the root pulp was evaluated by digital image anal...

background and purpose: according to fao's report, lentil yield in iran is much lower than average yield in the world. this is due to low quality seedling production, low germination and emergence capacity, biotic and abiotic stresses and poor seedling establishment which was forced to looking for a way to enhance these components. seed priming is one of the strategy for increasing the rat...

Trichoderma species belong to a class of free-living fungi beneficial to plants that are common in the rhizosphere. We investigated the role of auxin in regulating the growth and development of Arabidopsis (Arabidopsis thaliana) seedlings in response to inoculation with Trichoderma virens and Trichoderma atroviride by developing a plant-fungus interaction system. Wild-type Arabidopsis seedlings...

BACKGROUND Legumes are unique in their ability to establish symbiotic interaction with rhizobacteria from Rhizobium genus, which provide them with available nitrogen. Nodulation factors (NFs) produced by Rhizobium initiate legume root hair deformation and curling that entrap the bacteria, and allow it to grow inside the plant. In contrast, legumes and non-legumes activate defense responses when...

introduction: herbicides, despite of their control of weeds, have the potential to affect sensitive crops in rotation and also beneficial non-targeted soil microbes including vesicular arbuscular mycorrhiza (vam) fungi (6). am fungi can increase the growth of crops through increasing uptake of phosphorus and insoluble micronutrients, and indirectly by improving soil quality parameters (30). how...