tailieunhanh - Time-dependent effect of salicylic acid on alleviating cold damage in two barley cultivars differing in cold tolerance
It was found that mM SA had a greater alleviating effect, decreasing the freezing injury in both varieties for at least 10 days after the application. Moreover, mM SA had a greater effect on alleviation in Tokak by increasing the ice nucleation activity of apoplastic proteins extracted from the leaves. | Turkish Journal of Botany Turk J Bot (2013) 37: 343-349 © TÜBİTAK doi: Research Article Time-dependent effect of salicylic acid on alleviating cold damage in two barley cultivars differing in cold tolerance 1, 2 3 4 5 Salih MUTLU *, Ömer KARADAĞOĞLU , Ökkeş ATICI , Esen TAŞĞIN , Barbaros NALBANTOĞLU 1 Department of Biology, Faculty of Science, Erzincan University, Erzincan, Turkey 2 Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey 3 Department of Biology, Faculty of Science, Atatürk University, Erzurum, Turkey 4 Faculty of Education, Bayburt University, Bayburt, Turkey 5 Department of Chemistry, Science Faculty, Yıldız Technical University, İstanbul, Turkey Received: Accepted: Published Online: Printed: Abstract: The time-dependent effect of salicylic acid (SA) on alleviating cold damage in the Tokak (tolerant) and Akhisar (sensitive) varieties of barley (Hordeum vulgare) was investigated. Seedlings subjected to , , and 1 mM SA for 7 days were transferred to cold (7/5 °C) on days 7, 14, 21, and 28 for 3 days. It was found that mM SA had a greater alleviating effect, decreasing the freezing injury in both varieties for at least 10 days after the application. Moreover, mM SA had a greater effect on alleviation in Tokak by increasing the ice nucleation activity of apoplastic proteins extracted from the leaves. SA was effective for at least 24 days in decreasing the effect of freezing temperature by regulating apoplastic proteins in the leaves after the application. Furthermore, and 1 mM SA had an alleviating effect by decreasing the lipid peroxidation level in both varieties for at least 24 days after the application. It can be seen that SA treatment can play a positive role in alleviating cold damage in barley. Therefore, it is suggested that results from SA treatments may contribute to research related .
đang nạp các trang xem trước
