First report of leaf spot Caused by Cercospora apii Fresen of Tabebuia argentea in India

Raghavendra, V. B. and Nagesh, K. S. and Govindappa, M. and Lokesh, S. (2016) First report of leaf spot Caused by Cercospora apii Fresen of Tabebuia argentea in India. International Journal of Advanced Research in Biological Sciences, 3 (7). pp. 203-205. ISSN 2348-8069

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Abstract

Tabebuia argentea (Bureau & K. Schum.) Britt. Belongs to Bignoniaceae, is a large and yellow flowering tree grown in different parts of India. In several forest nurseries in Mysore district of Karnataka, India, seedlings of this tree species exhibited purple leaf spots on the leaves. The fungus was isolated from such leaf spot portions of nursery seedlings and subsequent re-inoculation of the same to healthy plants exhibited the similar spots, confirmed the pathogen. Pathogenicity tests proved the aggressiveness of Cercospora apii Fresen on the leaves of T. argentea seedlings through the development of purplish spots similar to the symptoms in vivo. The fungus was identified based on habit and conidial morphology, as Cercospora apii. Identifications were confirmed based on the comparisons of DNA sequences of Internal Transcribed Spacers (ITS) regions 1 and 4 out rightly proved the pathogen without any ambiguity.

Item Type: Article
Subjects: Agriculture Biological Sciences > Botany
University of Mysore > PG Campuses > Manasagangotri, Mysore > Agriculture Biological Sciences > Botany

Agriculture Biological Sciences > Biotechnology
University of Mysore > PG Campuses > Manasagangotri, Mysore > Agriculture Biological Sciences > Biotechnology
Divisions: PG Campuses > Manasagangotri, Mysore > Biotechnology
PG Campuses > Manasagangotri, Mysore > Botany
Depositing User: Praveen Kumari B.L
Date Deposited: 21 Jun 2017 10:44
Last Modified: 21 Jun 2017 10:44
URI: http://eprints.uni-mysore.ac.in/id/eprint/19545

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