ارزیابی خصوصیات فیزیولوژیکی، مورفولوژیکی و آناتومیکی گونه‌ی خلر(Lathyrus stavius)در پاسخ به تنش آلودگی نفتی
محورهای موضوعی : زیست شناسی سلولی تکوینی گیاهی و جانوری ، تکوین و تمایز ، زیست شناسی میکروارگانیسم
کلید واژه: محیط زیست, آلاینده, بقولات, نفت خام سبک, هیدروکربن‌های نفتی,
چکیده مقاله :
اثر تنش آلودگی نفتی بر کاهش رشد گیاه از واضح‌ترین پاسخ‌های گیاهان به تنش آلودگی نفتی است. بطور کلی می‌توان گفت که گیاهان جهت بالا بردن مقاومت خود به تنش آلودگی نفتی تغییرات فیزیولوژیکی، مورفولوژیکی و آناتومیکی از خود نشان می دهد که این تغییرات بر حسب گونه متفاوت است. هدف از این تحقیق بررسی مقاومت گونه‌ی خلر (Lathyrus stavius) و تغییرات رویشی و آناتومیکی صورت گرفته بر روی ساقه این گیاه در برابر آلودگی نفتی می‌باشد. در این مطالعه اثرغلظت‌هایمختلفنفت خامسبک(1، 2، 3 ،4 درصد)بر رشد گونه‌ی خلر (Lathyrus stavius) در مدت 2 ماه در قالب یک طرح کاملا تصادفی بررسی شد. و پس از آن مطالعات مورفولوژیکی و آناتومیکی برروی گونه فوق انجام گرفت. نتایج حاصل نشان دادکه باافزایش غلظت نفت سبک در خاک کاهش معنی‌داری در پارامترهای رویشی اتفاق می‌افتد. همین طور تغییرات ظاهری در ساقه و برگ نیز تغییراتی را در اپیدرم، پارانشیم و آوندها شاهد بودیم.
Effect of oil contamination on reduction of the plant growth is one of most obvious responses of plants to oil pollution stress; in generally to say that plants in order in increase to their resistance against oil pollution stress have under age functional changes, anatomical changes and histological changes, these changes vary depending on the species. The purpose of this research is to examine the resistance of lathyrusstavius species and to show the vegetative to this plants stem during its exposure to oil pollution. In this survey, the effect of the light crude oil indifferent concentration (1.2.3.4) on the growth of this species at 2 month in Completely Randomized Design (CRD) was investigated. After that, the morphological and anatomical studies and researches on species been fulfilled. Result showed that increasing oil pollution due to decreasing growth parameter was significantly (p≤0.05). Also in this survey we observed leaves, stem and root appearance changes and some changes epidermis, parenchyma and in vessels.
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