Microscopical Studies Of The Infection Of Gerbara Flowers ByBotrytis Cinerea

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for cutinase activity. Studies carried out on the fruits of tomato and in gerbera flowers have shown that the wild isolates of B. cinerea and its mutants are capable of penetrating through the layer of cuticle, which leads to the conclusion that the enzyme 18 kDa cutinase is not essential for penetration. Another enzyme assumed to

First Report of Powdery Mildew Caused by Golovinomyces

Jun 06, 2017 eventually fall off. Infection was severe and resulted in the death of some plants (Fig.1). The severity of disease was recorded up to 19.4 percent. Pathogen The powdery mildew pathogen was stripped off gently with help of painting brush and microscopic examination of pathogen was done by under Light microscope, Leica-DM1B.

Effects of temperature, relative humidity and age of conidia

Botrytis cinerea was easily isolated from such lesions. Inoculation with B. cinerea only gave typical necrotic lesions, when dry conidia were dusted on the flowers with a short period of high rh

Infection Strategies of Botrytis cinerea

Infection Strategies of Botrytis cinerea Jan A.L. van Kan Wageningen University, Laboratory of Phytopathology, Binnenhaven 5 6709 PD Wageningen The Netherlands Keywords: grey mould, post-harvest damage, molecular genetics, virulence genes. Abstract Botrytis cinerea is a ubiquitous filamentous fungal pathogen of a wide range of plant species.

Diseases of Carnation and their management

102 grows between 10-35 oC.But temperature of 27 C is optimum for the growth of pathogen. But, disease development is more rapid at 5-35oC than at 15- 20oC (Ann et al., 1990). 1.2 Sclerotinia stem

Disease cycle and infection strategies of systemic plant

able to infect all aerial parts of its host plants; where infection may cause enormous damage both during plant growth and in the post-harvest stage (during cold storage or transport). B. cinerea is a major cause of economic losses in the production chain of cut flowers, bulb flowers and pot plants. Molecular-genetic studies performed over

U R A L SCIE N A T NCE D F A D N OUND Journal of Applied and

and flowering plants. Gerbera is an important cut flower with great export potential. However, it is infected by many pathogens in the protected cultivation. The severe infection of fungal blight caused by Alternaria alternata (Fr.) Keissler was observed in the polyhouse condition. Hence, in this study, critical morphological and cultural studies