Effect of sclerotial distribution pattern of Sclerotinia sclerotiorum on biocontrol efficacy of Trichoderma harzianum

2007 ◽  
Vol 35 (1) ◽  
pp. 21-24 ◽  
Author(s):  
Y.S. Bae ◽  
G.R. Knudsen
Keyword(s):  
Distribution Pattern ◽  
Sclerotinia Sclerotiorum ◽  
Trichoderma Harzianum ◽  
Biocontrol Efficacy

scholarly journals Detecting the Hormonal Pathways in Oilseed Rape behind Induced Systemic Resistance by Trichoderma harzianum TH12 to Sclerotinia sclerotiorum

PLoS ONE ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. e0168850 ◽  
Author(s):  
Jawadayn Talib Alkooranee ◽  
Tamarah Raad Aledan ◽  
Ali Kadhim Ali ◽  
Guangyuan Lu ◽  
Xuekun Zhang ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Sclerotinia Sclerotiorum ◽  
Trichoderma Harzianum ◽  
Induced Systemic Resistance ◽  
Systemic Resistance

Expression of L-amino acid oxidase of Trichoderma harzianum in tobacco confers resistance to Sclerotinia sclerotiorum and Botrytis cinerea

Plant Science ◽  
2021 ◽  
Vol 303 ◽  
pp. 110772
Author(s):  
Kou-Cheng Peng ◽  
Chao-Chi Lin ◽  
Chong-Fu Liao ◽  
Hsin-Chiao Yu ◽  
Chaur-Tsuen Lo ◽  
...  
Keyword(s):  
Amino Acid ◽  
Botrytis Cinerea ◽  
Sclerotinia Sclerotiorum ◽  
Trichoderma Harzianum ◽  
Acid Oxidase ◽  
Amino Acid Oxidase

scholarly journals Utilisation d'une souche indigène de Trichoderma harzianum contre cinq agents pathogènes chez le concombre et la tomate de serre au Québec

2005 ◽  
Vol 83 (2) ◽  
pp. 73-87 ◽  
Author(s):  
J. Caron ◽  
L. Laverdière ◽  
P.O. Thibodeau ◽  
R.R. Bélanger
Keyword(s):  
Rhizoctonia Solani ◽  
Fusarium Oxysporum ◽  
Sclerotinia Sclerotiorum ◽  
Verticillium Dahliae ◽  
Trichoderma Harzianum ◽  
Pythium Ultimum

Le potentiel antagoniste du biofongicide à base de Trichoderma harzianum MAUL-20, isolé au Québec, a été testé contre cinq agents telluriques phytopathogènes(Fusarium oxysporum f. sp. radicis-lycopersici (FORL), Pythium ultimum, Rhizoctonia solani, Sclerotinia sclerotiorum et Verticillium dahliae) du concombre et de la tomate de serre. Le biofongicide a démontré une efficacité contre P. ultimum et R. solani chez le concombre et la tomate et contre FORL chez la tomate. De plus, T. harzianum MAUL-20 a eu un effet stimulant sur le développement des plants de concombre lorsque cultivés, sans agents pathogènes, dans un substrat organique alimenté du biofongicide. L'efficacité de T. harzianum MAUL-20 a été comparée à celle du biofongicide américain Rootshield™ (Trichoderma harzianum KRL-AG2) et le premier a démontré une activité antagoniste égale ou supérieure à celle de Rootshield™.

Mycoparasitism studies of Trichoderma harzianum against Sclerotinia sclerotiorum: evaluation of antagonism and expression of cell wall-degrading enzymes genes

2014 ◽  
Vol 36 (10) ◽  
pp. 2095-2101 ◽  
Author(s):  
Rogério Fraga Troian ◽  
Andrei Stecca Steindorff ◽  
Marcelo Henrique Soller Ramada ◽  
Walquiria Arruda ◽  
Cirano José Ulhoa
Keyword(s):  
Cell Wall ◽  
Sclerotinia Sclerotiorum ◽  
Trichoderma Harzianum ◽  
Cell Wall Degrading Enzymes ◽  
Degrading Enzymes

scholarly journals Effects of post-emergent herbicides on Trichoderma harzianum , a potential biocontrol agent against Sclerotinia sclerotiorum in soybean cropping

2007 ◽  
Vol 55 (3) ◽  
pp. 355-362
Author(s):  
M. Rollán ◽  
C. Mónaco ◽  
G. Lampugnani ◽  
N. Arteta ◽  
D. Bayo ◽  
...  
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Trichoderma Harzianum ◽  
Mycelial Growth ◽  
Detrimental Effect ◽  
Biocontrol Agent ◽  
Selective Medium ◽  
Potential Biocontrol Agent ◽  
Colony Forming Units ◽  
Soil Dilution

Trichoderma harzianum is a potential biocontrol agent against Sclerotinia sclerotiorum in soybean. Information is needed on the compatibility of this biocontrol agent and the post-emergent herbicides used in soybean cropping.Haloxyfop R Methyl (EC 10.4%), Glyphosate (SL 48%), Imazamox (WG 70%) and Imazethapyr (SL 10%) were evaluated for their effects on the mycelial growth of T. harzianum on in vitro agar plates. Glyphosate (2000 ppm), Imazethapyr (500 and 250 ppm) and Haloxyfop R Methyl (1000, 500 and 100 ppm) reduced the mycelial growth of T. harzianum . Imazamox had no effect at any concentration.Subsequently, all the herbicides were assessed for their effect on soil populations of T. harzianum . Greenhouse assays conducted with non-sterile soil inoculated with T. harzianum and a specific herbicide were sampled before pesticide application and after 30 days. The number of colony forming units per gram of soil (c.f.u./g of soil) was evaluated with a soil dilution technique using Trichoderma selective medium (TSM). No detrimental effect was revealed.

Efficacy of Antagonists on mycelium growth and carpogenic germination of sclerotia of Sclerotinia sclerotiorum on Indian mustard

2016 ◽  
Vol 1 (02) ◽  
pp. 190-193
Author(s):  
Jhilmil Gupta
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Trichoderma Harzianum ◽  
Plant Pathogens ◽  
Foliar Spray ◽  
Indian Mustard ◽  
Plant Diseases ◽  
Stem Rot ◽  
Pseudomonas Chlororaphis ◽  
Coniothyrium Minitans ◽  
Carpogenic Germination

Sclerotinia sclerotiorum (Lib.) de Bary is a soil borne pathogen capable of infecting more than 400 host plants worldwide. It is a major pathogen that plays a crucial role in reducing the yield in economically important crops. The capability of sclerotia to survive for more than 4 years becomes very difficult to manage the crop from the infection of Sclerotinia rot fungus. Stem rot of indian mustard [Brassica juncea (L.) Czern and Cross] caused by Sclerotinia sclerotiorum is potentially a serious threat in many mustard growing areas in India. Treatments of seeds and foliar spray with of fungicides applied at regular intervals are effective in reducing infection, but uses of chemicals are hazardous, harmful for beneficial micro-organisms. Biological control of plant pathogens offers an exciting opportunity to manage plant diseases. In the present study, the efficacy of four bio-agents, viz., Coniothyrium minitans, Aspergilus nidulans, Trichoderma harzianum, and Pseudomonas chlororaphis were evaluated for the control of stem rot of Indian mustard. Results on bio-efficacy of different bioagents, when evaluated under glass house condition, the Coniothyrium minitans was the most effective agent and caused highest reduction (64.7 %) in carpogenic germination of sclerotia followed by Aspergilus nidulans (52.5 %) and Trichoderma harzianum (48.8 %), over control while Pseudomonas chlororaphis (48.3 %) was at par with T. harzianum. All the bioagents showed significant reduction effective in controlling the disease. Similar results were achieved when bioagents tested on dual inoculated plates.

scholarly journals Regimes de luz na produção de conídios de Trichoderma harzianum para controle do mofo branco em feijoeiro

2015 ◽  
Vol 45 (4) ◽  
pp. 434-439 ◽  
Author(s):  
Mariany Dalila Milan ◽  
Franciely Magalhães Barroso ◽  
Sueli Corrêa Marques de Mello ◽  
Márcio da Silva Araújo ◽  
Daniel Diego Costa Carvalho
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
Trichoderma Harzianum

RESUMO O mofo branco tem sido responsável por danos expressivos à cultura do feijoeiro. Objetivou-se avaliar o efeito de regimes de luz na produção de conídios de Trichoderma harzianum e na efetividade destes em inibir a germinação miceliogênica de escleródios de Sclerotinia sclerotiorum, bem como de isolados de T. harzianum na supressão de lesões causadas por S. sclerotiorum sobre folíolos de feijoeiro. O isolado CEN287 inibiu a germinação miceliogênica de 80 % dos escleródios avaliados. Tal efetividade não se alterou quanto ao regime de luz empregado para a obtenção dos conídios de T. harzianum. Os isolados CEN287, CEN288 e CEN316 proporcionaram os menores valores médios de lesão foliar aos 10 dias após a inoculação, sendo de 4,25 mm2; 2,97 mm2; e 2,98 mm2, respectivamente. Em relação à testemunha, tais valores foram significativamente inferiores (72,90 mm2), o que impediu a rápida deterioração do tecido vegetal.

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