Topic
Trichoderma harzianum
About: Trichoderma harzianum is a research topic. Over the lifetime, 4731 publications have been published within this topic receiving 96796 citations.
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TL;DR: The need to augment soil applications of T. harzianum for obtaining effective control of pigeonpea wilt is suggested, as the efficacy of the biological control agent Trichoderma harZianum was found to be more effective than seed treatment for disease suppression.
62 citations
15 Jun 1998
TL;DR: Application of plant based formulations of T. harzianum to nursery beds of egg plant was effective in producing vigorous seedlings with the least root galling and increased root colonization and parasitization of M. incognita females by T. HARZianum.
Abstract: Aqueous extracts of neem (Azadirachta indica), castor (Ricinus communis) and pongamia (Pongamia pinnata) cakes were evaluated as substrates for mass production of the biological control agent, Trichoderma harzianum which was used in the management of Meloidogyne incognita in egg plant under fields conditions Castor cake extract at 10% gave maximum growth of mycelial mat and spore production of T harzianum compared with moderate growth in 10% pongamia cake and 5% castor cake extracts Application of plant based formulations of T harzianum to nursery beds of egg plant was effective in producing vigorous seedlings (increase in plant height and seedling weight) with the least root galling The above treatments also increased root colonization and parasitization of M incognita females by T harzianum
62 citations
TL;DR: A new enzyme cocktail was defined to protoplast Aspergillus niger that consists of lysing enzymes from Trichoderma harzianum, chitinase from Streptomyces griseus and beta-glucuronidase from Helix pomatia.
62 citations
TL;DR: The triple microbe consortium modulated the chickpea antioxidant mechanisms more efficiently and modulation of oxidative stress was directly correlated with lower plant mortality, thus demonstrating the synergistic behaviour of the microbes in protecting chickpeA from the pathogen.
Abstract: The aim of this study was to evaluate the potentiality of three compatible rhizosphere microbes, viz. fluorescent Pseudomonas aeruginosa (PHU094), Trichoderma harzianum (THU0816) and Mesorhizobium sp. (RL091), in community to mobilise antioxidant mechanisms in chickpea under the challenge of Sclerotium rolfsii. The microbes were applied as seed treatment in different combinations in two sets and the pathogen was inoculated in one of the sets after 3weeks of sowing. A comparative study was conducted on the effect of the microbial combinations on host antioxidant mechanisms between the two sets. In pathogen challenged plants host defence responses included higher accumulation of hydrogen peroxide (H2O2) at petiolar and interveinal regions of leaf and high activities of catalase (CAT), glutathione reductase (GR) and guaiacol peroxidase (GPx) compared to unchallenged plants. The antioxidant enzyme activities increased 1.8−3.3 and 1.9−3.1 folds at 48 and 72h, respectively, in the triple microbe treated challenged plants compared to unchallenged ones. Although, ascorbate peroxidase (APX) activity was significantly low, ascorbic acid (AA) and chitinase accumulation was high in the pathogen challenged plants. Antioxidant flavonols associated with host defence namely myricetin, quercetin and kaempferol also accumulated in high amounts in pathogen challenged plants. Among the microbial treatments, the triple microbe combination induced the highest response in all parameters as compared to dual or single application of the same microbes. The triple microbe consortium modulated the chickpea antioxidant mechanisms more efficiently and modulation of oxidative stress was directly correlated with lower plant mortality, thus demonstrating the synergistic behaviour of the microbes in protecting chickpea from the pathogen.
62 citations
TL;DR: Five microbial products claimed by their manufacturers to protect against soil-borne plant pathogens were tested in the greenhouse for efficacy against Pythium ultimum on cucumber and Rhizoctonia solani on peas, and SOILGARD was the only biocontrol product that gave significant control of P. ultimum.
62 citations