کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2053536 1543651 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An asexual Epichloë endophyte enhances waterlogging tolerance of Hordeum brevisubulatum
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
An asexual Epichloë endophyte enhances waterlogging tolerance of Hordeum brevisubulatum
چکیده انگلیسی

Using field collected asexual Epichloë endophyte infected (E+) and endophyte free (E−) Hordeum brevisubulatum plants in a greenhouse experiment, we demonstrate that endophyte infection increases host plant resistance to waterlogging. All plants assigned to waterlogging treatment started to wither and lose their root vitality, and consequently lost considerable photosynthesizing and root tissues. However, E+ plants showed significantly less symptoms of damage, and they produced significantly greater content of chlorophyll, more tillers, higher shoots and higher under-ground biomass compared to E− plants. Waterlogging induced osmoprotective proline production particularly in E+ plants and had lower malondialdehyde content and electrolyte leakage, suggesting that endophyte infection positively affects osmotic potential and oxidative balance of the host plant. We propose that higher resistance of E+ plants of H. brevisubulatum to waterlogging should be acknowledged in breeding programmes and the scenarios of changes in grassland ecosystems as a result of climate change.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fungal Ecology - Volume 13, February 2015, Pages 44–52
نویسندگان
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