Results 191 to 200 of about 28,690 (231)

Isolation and Structure of Harzianum A: A New Trichothecene from Trichoderma harzianum

Journal of Natural Products, 1994
A new trichothecene, harzianum A [1], was isolated from the soil-borne fungus Trichoderma harzianum. The structure of 1 was determined by extensive spectral analyses including the nmr techniques of PS-COSY, HMQC, HMBC, and NOESY. Harzianum A [1] contains a (Z,E,E)-2,4,6-octatriendioic acid esterified on the 4 beta hydroxyl group of trichodermol and is ...
D G, Corley, M, Miller-Wideman, R C, Durley   +2 more
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Xylanase production by Trichoderma harzianum E58

Applied Microbiology and Biotechnology, 1989
Growth of Trichoderma harzianum E58 on hemicellulose-rich media, both in batch and fermentor cultures, resulted in independent profiles for the production of xylanase and endoglucanase enzymes. Dramatic differences in the ratio of xylanase to endoglucanase activities were observed among cultures grown on cellulose-rich Solka Floc and xylan.
D. J. Senior, P. R. Mayers, J. N. Saddler   +2 more
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Antifungal alkyl pyrones of Trichoderma harzianum

Transactions of the British Mycological Society, 1987
Two strains of Trichoderma harzianum were both found to produce the volatile metabolites 6-n-pentyl-2H-pyran-2-one and 6-n-pentenyl-2H-pyran-2-one. The pentyl analogue, the major product, demonstrated potent inhibitory properties to a wide range of fungi and considerably reduced the rate of damping off in lettuce seedlings by Rhizoctonia solani ...
N. Claydon, M. Allan, J.R. Hanson, A.G. Avent   +3 more
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Effect of pesticides on Trichoderma harzianum

2010 International Conference on Mechanic Automation and Control Engineering, 2010
In this paper, for improving the integrative controlling effect of Trichoderma harzianum, effect of 14 pesticides on T. harzianum was studied with growth rate method and the circle of inhibiting bacterium method. The results suggested that all 14 tested pesticides with different concentration showed different controlling effect on mycelia growth of T ...
Yan-bing Wu, Xiu-juan Ren, Da-fu Wu, Zhen-min Yan, Yang- fan Gao, Rui-fu Xu, Xi-ling Chen, Jian-feng Lang   +7 more
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Trichoderma harzianum: a biocontrol agent against Bipolaris oryzae

Mycopathologia, 2007
Rice brown spot, caused by Bipolaris oryzae, can be a serious disease causing a considerable yield loss. Trichoderma harzianum is an effective biocontrol agent for a number of plant fungal diseases. Thus, this research was carried out to investigate the mechanisms of action by which T.
Gamal M, Abdel-Fattah, Yasser M, Shabana, Adel E, Ismail, Younes Mohamed, Rashad   +3 more
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Extracellular laccases in ascomycetesTrichoderma atroviride andTrichoderma harzianum

Folia Microbiologica, 2002
Laccase activity in Trichoderma harzianum and in our own isolate Trichoderma atroviride was correlated with the production of the green pigment in conidial spores. The laccases of the two fungal species exhibit comparable kinetic parameters, pH optima and thermal sensitivity but differed in physiological properties, such as their catalytic activity ...
U, Hölker, J, Dohse, M, Höfer
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Induced proteome of Trichoderma harzianum by Botrytis cinerea

Mycological Research, 2009
As a notable biocontrol agent, Trichoderma harzianum can antagonize a diverse array of phytopathogenic fungi, including Botrytis cinerea, Rhizoctonia solani and Fusarium oxysporum. Elucidating the biocontrol mechanism of T. harzianum in response to the pathogens enables it to be exploited in the control of plant diseases.
Hsueh-Hui, Yang, Siwy Ling, Yang, Kou-Cheng, Peng, Chaur-Tsuen, Lo, Shu-Ying, Liu   +4 more
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Trichoderma harzianum enhances tomato indirect defense against aphids

Insect Science, 2017
AbstractMany fungal root symbionts of the genus Trichoderma are well‐known for their beneficial effects on agronomic performance and protection against plant pathogens; moreover, they may enhance protection from insect pests, by triggering plant resistance mechanisms.
COPPOLA, MARIANGELA, CASCONE, PASQUALE, CHIUSANO, MARIA LUISA, COLANTUONO, CHIARA, LORITO, MATTEO, PENNACCHIO, FRANCESCO, RAO, ROSA, WOO, SHERIDAN LOIS, GUERRIERI, EMILIO, DIGILIO, MARIA CRISTINA   +9 more
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Trichoderma harzianum metabolites pre-adapt mushrooms to Trichoderma aggressivum antagonism.

Mycologia, 2003
Trichoderma spp. is the cause of green mold, a disorder that affects cultivated mushrooms. The aims of the study were to establish whether improvement of mushroom resistance to Trichoderma aggressivum could be obtained by inducing reaction mechanisms before contact with the pathogen and whether this ability was species or strain dependent.
Savoie, J.M., Mata, G.
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Production of \-mannanases by Trichoderma harzianum E58

Applied Microbiology and Biotechnology, 1990
The extracellular mannanase and endoglucanase activities of Trichoderma harzianum E58 were followed during growth of the fungus on 1% (w/v) mannose, Avicel, locust bean gum, konjac powder or the water-soluble fraction from stream-treated white spruce (SWS). Peak galactomannanase activities of 0.60 IU/ml and 0.66 IU/ml were detected in culture filtrates
J.P. Torrie, D.J. Senior, J.N. Saddler
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