کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5744905 | 1618560 | 2017 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of turbulence motion on the growth and physiology of aquatic plants
ترجمه فارسی عنوان
اثر حرکت آشفتگی بر رشد و فیزیولوژی گیاهان آبزی
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کلمات کلیدی
PODIAACKXMDAhydrogenperoxideROS - ROSindole acetic acid - اسید استیک اسید استOxidative stress - تنش اکسیداتیوcytokinin oxidase - سیتوکینین اکسیدازmalondialdehyde - مالون دی آلدهیدSubmerged macrophyte - ماکروفیت زیر آبH2O2 - هیدروژن پراکسیدPeroxidase - پراکسیدازReactive oxygen species - گونههای فعال اکسیژن
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
چکیده انگلیسی
Growth, stem morphology and some biochemical parameters were studied of one completely submerged (Myriophyllum spicatum) and two floating leaved macrophytes (Nymphoides peltata and Trapa japonica) under different turbulence velocities. The root mean square velocities of the high, medium and low amount of turbulence that was generated for the experiment were 2.18 ± 0.66, 1.48 ± 0.26 and 0.70 ± 0.07 cm sâ1, respectively, in the microcosm. All three experimental plants survived exposed to all turbulence conditions provided, although a decrease in shoot elongation rate was associated with an increase in turbulence. Acceleration of tissue H2O2 generation and MDA content increased during the study period in all plant species. Oxidative enzymatic activities (POD, IAA and CKX) increased with time in plants under medium and high turbulence velocities. The shoot elongation rate, stem and leaf diameter, chlorophyll content and carbohydrate fractionations were found to be affected by this abiotic stress. It is evident from this study that high turbulence velocity inhibits normal metabolic activities of all three plants, while low to medium turbulence does not harm the floating leaved plants. Moreover, floating leaved plants were found to possess highly capable strategies to cope with this mechanical stress than completely submerged species.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Limnologica - Ecology and Management of Inland Waters - Volume 62, January 2017, Pages 181-187
Journal: Limnologica - Ecology and Management of Inland Waters - Volume 62, January 2017, Pages 181-187
نویسندگان
Takashi Asaeda, M.H. Rashid,