کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4539874 1626667 2013 7 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Anthemis maritima L. in different coastal habitats: A tool to explore plant plasticity
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موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
پیش نمایش صفحه اول مقاله
Anthemis maritima L. in different coastal habitats: A tool to explore plant plasticity
چکیده انگلیسی


• Stress response in Anthemis maritima plants from different coastal habitats.
• Higher stomatal density, leaf thickness, succulence index in more stressed plants.
• Phenols and ascorbate: main antioxidants in response to coastal constraints.
• A. maritima may be a useful model to understand plasticity of adaptive mechanisms.

Anthemis maritima, a plant which has the ability to colonise different stressful coastal environments, sand dunes and rocky cliff ecosystems, exhibits a high degree of leaf trait plasticity. The key parameters are the regulation of stomatal density and size, the succulence index and the specific antioxidant response. With the aim to explore plant plasticity, we analysed various morphological and physiological traits of the leaves of A. maritima populations dwelling in three different coastal areas of Italy. The highest values of stomatal density, leaf thickness, and succulence index were found in plants living in a sub-arid climate, on rocky cliffs, with the highest soil pH and salinity. Although this population exhibited the highest concentration of oxygen reactive species (hydrogen peroxide), it also had the lowest value of lipid peroxidation, an indicator of oxidative stress. Ascorbate was the main protective molecule in this population, while phenols appeared to carry out this role in plants living on soils with the lowest salinity and highest annual rainfall.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Estuarine, Coastal and Shelf Science - Volume 129, 1 September 2013, Pages 105–111
نویسندگان
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