Abd Al-lateef Al-Ghazzawi*(1) Mahmood Abu Ghoura(2) Nabil Al-Beig(1) and Ragda Al-Baghdadi(1)
(1). Administration Research of Plant Protection, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.
(2). Department of Plant Protection, Faculty of Agriculture, Damascus University, Damascus, Syria.
(*Corresponding author: Abdullatif Al Ghazawi. E-mail: Ghazawi11@gmail.com. Mobile phone: +963 0991187894).
Abstract
Tomato stem pith necrosis disease has been observed in the greenhouses in Syria since the beginning of nineties in northern west of Aleppo, but recent surveys confirmed the existence of the disease in the coastal region (Tartous and Lattakia governorates), where tomato is cultivated intensively in greenhouses. The results of the survey showed that percentage of greenhouses infected with the disease in Tartous governorate during 2010 and 2011 were 17.7 % and 24.4% respectively, and the disease averages of spread were 0.19% and 0.28% respectively, where infected plants percentages were 0.72% and 0.97% respectively. The percentages of greenhouses infected with the disease in Lattakia governorate during the 2010 and 2011 were 23.20 and 24.86% respectively, and the disease averages of spread were 0.32 and 0.35% respectively, where infected plants percentages were 0.65% and 0.85% respectively. 60 isolates out of 100 isolates resulted from the survey, were characterized morphologically, physiologically and biochemically as Pseudomonas corrugate, where 12 isolates were identified as Pectobacterium carotovorum subsp. Carotovorum, and PCR was used to identify 4 isolates resulted from (pcc) with the aid of specific primers.
Key words: Tomato. Pectobacterium carotovorum subsp. carotovorum, Pith necrosis, Pseudomonas corrugate. Lattakkia, Tartous.
Full paper in Arabic:حصر أولي لمسببات موت لب ساق البندورة في الزراعة المحمية في المنطقة الساحلية من سورية