Hebbarb aplant biology and pathology department, rutgersthe state university of new jersey, 59 dudley road, new brunswick, nj 089018520, usa. The optimum temperature range for trichoderma harzianum is between 30 to 37oc, whereas trichoderma koningii has an. Trichoderma harzianum produces nonanoic acid, an inhibitor. Once soil temperatures exceed 15oc, this is the best timing for trichoderma to be introduced into the soil. Commercial biotechnological products such as 3tac have been useful for treatment of botrytis, fusarium and penicillium sp. Commercial biotechnological products such as 3tac have been useful for treatment of botrytis, fusarium and penicillium sp it is also used for manufacturing enzymes. The optimum temperature range for trichoderma harzianum is between 30 to 37oc, whereas trichoderma koningii has an optimal range between 32 to 35oc danielson and davey. It is used for foliar application, seed treatment and soil treatment for suppression of various disease causing fungal pathogens. Phytophthora, rhizoctonia, sclerotium, pythium y fusarium. Katan research assistant, professor, and associate professor, respectively, department of plant pathology and microbiology, faculty of agriculture, the hebrew university, rehovot, israel. The white areas do not contain spores, while the green areas are covered with dense masses. In indoor gardens trichoderma should be added to potting soils to restore healthy population levels lost due to soil sterilization, the use of strong chemical sanitizers, waterlogged soils low in oxygen and excessive fertilization.
Trichoderma is a genus of fungi in the family hypocreaceae, that is present in all soils, where they are the most prevalent culturable fungi. Many species in this genus can be characterized as opportunistic avirulent plant symbionts. Trichoderma harzianum produces nonanoic acid, an inhibitor of spore germination and mycelial growth of two cacao pathogens madhu anejaa, thomas j. Katan research assistant, professor, and associate professor, respectively, department of plant pathology and microbiology, faculty of. A biocontrol agent effective against sclerotium rolfsii and rhizoctonia solani y. Omar romeroarenas, manuel huerta lara2, miguel angel damian huato2, francisco dominguez hernandez1. Cultures of trichoderma harzianum strain t22 krlag2 growing on potato dextrose agar.
Trichoderma harzianum as biofungicide in the control of phytophthora capsici in pepper capsicum annuum l. Omar romeroarenas, manuel huerta lara2, miguel angel damian huato2, francisco dominguez hernandez1, daniel alfonso arellano victoria3. Las colonias son al principio blancas y algodonosas. Effect of culture conditions and spore shelf life of the biocontrolagent trichoderma harzianum. This refers to the ability of several trichoderma species to form mutualistic endophytic relationships with several plant species. Principle and interpretation trichoderma harzianum is an efficient biocontrol agent that is commercially produced to prevent development of several soil pathogenic fungi. In soil, they frequently are the most prevalent culturable fungi.
593 429 340 1059 1064 888 289 651 22 1400 437 1193 262 953 513 1270 651 554 786 1441 737 699 1126 417 1548 622 875 1384 1118 525 981 1015 107 171 453 1494 606 39 42 866 1199 68 248 103 867