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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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19 Jun 2020
TL;DR: The synthesis of these compounds implies that tomato plants are able to reuse the photorespiratory amino acids and ammonium for producing useful metabolites and reduce the pressure of photorespiration on plant metabolism, thus optimizing photosynthesis and growth.
Abstract: Many Trichoderma are successfully used to improve agriculture productivity due to their capacity for biocontrol and to stimulate plant growth and tolerance to abiotic stress This research elucidates the effect of applications with Trichoderma harzianum strain T22 (T22), or biopolymer (BP) alone or in combination (BP + T22 or BP + 6-pentyl-α-pyrone (6PP); a Trichoderma secondary metabolite) on the crop performance, nutritional and functional quality of greenhouse tomato (Solanum lycopersicum L cultivar Pixel) T22 elicited significant increases in total yield (+401%) compared to untreated tomato The content of lycopene, an important antioxidant compound in tomatoes, significantly increased upon treatment with T22 (+ 49%), BP + T22 (+ 40%) and BP + 6PP (+ 52%) compared to the control T22 treatments significantly increased the content of asparagine (+37%), GABA (+87%) and MEA (+102%) over the control; whereas BP alone strongly increased GABA (+105%) and MEA (+85%) The synthesis of these compounds implies that tomato plants are able to reuse the photorespiratory amino acids and ammonium for producing useful metabolites and reduce the pressure of photorespiration on plant metabolism, thus optimizing photosynthesis and growth Finally, these metabolites exert many beneficial effects for human health, thus enhancing the premium quality of plum tomatoes
39 citations
39 citations
TL;DR: Evaluating the antagonistic capacity of five strains of Trichoderma against C. gloeosporioides showed that it was the interaction of the strain with the different time of inoculation that influenced the size of the lesion, with the largest decrease in lesion size occurring when Trichodma viride was inoculated 24 h before the pathogen.
39 citations
TL;DR: The mycelium of T. harzianum turned out to be the best substrate for the induction of β-1,3-glucanases and β- glucosidases for both strains of L. laccata, although the difference in the inductionof chitinases in the presence of mycelia of different species of Trichoderma was not indicated.
Abstract: The production of enzymes involved in mycoparasitism by several strains of ectomycorrhizal fungi: Amanita muscaria (16-3), Laccaria laccata (9-12), L. laccata (9-1), Suillus bovinus (15-4), S. bovinus (15-3), S. luteus (14-7) on different substrates such as colloidal chitin, mycelia of Trichoderma harzianum, T. virens and Mucor hiemalis was examined. Chitinases and β-1,3-glucanases were assayed spectrophotometrically by measuring the amount of reducing sugars releasing from suitable substrate by means of Miller's method. β-glucosidases were determined by measuring the amount of p-nitrophenol released from p-nitrophenyl-β-D-glucopyranoside. It was observed that A. muscaria (16-3) and L. laccata (9-12) biosynthesized the highest activity of enzymes in contrast to the strains of S. bovinus and S. luteus. The mycelium of T. harzianum turned out to be the best substrate for the induction of β-1,3-glucanases and β-glucosidases for both strains of L. laccata, although the difference in the induction of chitinases in the presence of mycelia of different species of Trichoderma was not indicated.
39 citations
TL;DR: Bacillus spp.
39 citations