کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2055731 1543901 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of the salt stress vulnerability of three invasive freshwater plant species using a metabolic profiling approach
ترجمه فارسی عنوان
شناسایی آسیب پذیری تنش شوره از سه گونه گیاه آب شیرین مهاجم با استفاده از رویکرد پروفایل متابولیکی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی


• The growth of three invasive freshwater plants is affected by the salt treatment.
• In response to NaCl, invasive freshwater plants modify their primary metabolism.
• We report the salt-induced accumulation of sucrose in Ludwigia grandiflora.
• Myo-inositol accumulates in Myriophyllum aquaticum in response to salt stress.

The effects of salt stress on freshwater plants has been little studied up to now, despite the fact that they are expected to present different levels of salt sensitivity or salt resistance depending on the species. The aim of this work was to assess the effect of NaCl at two concentrations on three invasive freshwater species, Elodea canadensis, Myriophyllum aquaticum and Ludwigia grandiflora, by examining morphological and physiological parameters and using metabolic profiling. The growth rate (biomass and stem length) was reduced for all species, whatever the salt treatment, but the response to salt differed between the three species, depending on the NaCl concentration. For E. canadensis, the physiological traits and metabolic profiles were only slightly modified in response to salt, whereas M. aquaticum and L. grandiflora showed great changes. In both of these species, root number, photosynthetic pigment content, amino acids and carbohydrate metabolism were affected by the salt treatments.Moreover, we are the first to report the salt-induced accumulation of compatible solutes in both species. Indeed, in response to NaCl, L. grandiflora mainly accumulated sucrose. The response of M. aquaticum was more complex, because it accumulated not only sucrose and myo-inositol whatever the level of salt stress, but also amino acids such as proline and GABA, but only at high NaCl concentrations. These responses are the metabolic responses typically found in terrestrial plants.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Plant Physiology - Volume 175, 1 March 2015, Pages 113–121
نویسندگان
, , , , ,