نتایج جستجو برای: pseudisotoma sensibilis
تعداد نتایج: 38 فیلتر نتایج به سال:
چکیده پادمان یکی از بندپایان خاکزی هستند که در شکل گیری ساختمان خاک، تجزیه مواد آلی، به گردش درآمدن مواد و سایر فرایندهای اکولوژیک خاک نقش دارند. به منظور بررسی فون این بندپایان در استان مازندران، نمونه برداری هایی طی سال های 92-1390 انجام شد. نمونه ها به کمک قیف برلیز از خاک جدا شدند و پس از تهیه اسلاید میکروسکوپی، به کمک کلیدهای شناسایی معتبر تا سطح جنس و گونه شناسایی شدند. شناسایی گونه های ...
Fern (Onoclea sensibilis L.) gametophytes exposed to blue light are induced to undergo a morphological transition from a tip-growing filament to a planar prothallus. Extracellular measurements of electric currents and localized ion activities around the apical cell of 8 to 10 day-old gametophytes were made with a vibrating probe and ion selective electrodes. In darkness, we observed exit curren...
Plasmodesmata or intercellular bridges that connect plant cells are cylindrical channels approximately 40 nm in diameter. Running through the center of each is a dense rod, the desmotubule, that is connected to the endoplasmic reticulum of adjacent cells. Fern, Onoclea sensibilis, gametophytes were cut in half and the cut surfaces exposed to the detergent, Triton X 100, then fixed. Although the...
Fern (Onoclea sensibiis L.) gametophytes exposed to blue light are induced to undergo a morphological transition from a tip-growing filament to a planar prothallus. Extracellular measurements of electric currents and localized ion activities around the apical cell of 8 to 10 day-old gametophytes were made with a vibrating probe and ion selective electrodes. In darkness, we observed exit current...
Germination of Oncwk seblis L. spores is controlied by light and temperature. Temperatures of30 C can induce maximal germination in the dark to a level of 60 to 95% of that induced by a saturating dose of red light (0.38 joules/square meter) providing the spores are placed at the elevated temperature immediately after being sown. Maximum dark germination occurs with a minhmum exposure of 16 to ...
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