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Iran. J. Plant Path., Vol. 45, No. 4, 2010: 83-86
NEW ALTERNARIA SPECIES ASSOCIATED WITH POTATO LEAF SPOT IN VARIOUS POTATO GROWING REGION OF IRAN*
S. TAHERY ARDESTANI1**, B. SHARIFNABI1, R. ZARE2 and A. ABBASI MOGHADAM3 (Received : 16.5.2009 ; Accepted : 15.1.2010)
Abstract Early blight caused by Alternaria spp. highly influences potato production annually. It has become an important disease in major potato growing regions of Iran. Over 270 samples of potato infected leaves have been collected from various potato fields of Isfahan, Ardabil, Khuzestan, Hamedan, Semnan and Khorasan Razavi provinces. Base on morphological studies six Alternaria species i.e. Alternaria alternata, A. tenuissima, A. dumosa, A. solani, A. arborescens and A. infectoria have been identified. This is the first report of two pathogenic species A. infectoria and A. tenuissima on potato in Iran. Two species of A. alternata and A. tenuissima, were the most prevalent species found in the studied regions.
Keywords: Alternaria species, Potato, Early blight.
See persian text for figures and tables (Pages
).
*: A Part of MSc. Thesis of the First Author, Submitted to College of Agriculture, Isfahan University of Technology, Isfahan, Iran. **: Corresponding Author, Email:
[email protected] 1. Former MSc. Student and Assoc. Prof. of Plant Pathology, Isfahan University of Technology, Isfahan, Iran. 2. Res. Prof. of Plant Pathology, Iranian Research Institute of Plant Protection, Tehran, Iran. 3.Res. Assis. Prof. of Plant Pathology, Iran National Plant Gene Bank, SPPI, Karaj, Iran.
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