نتایج جستجو برای: پر سیاوشان adiantum capillus veneris
تعداد نتایج: 15703 فیلتر نتایج به سال:
Exactly 100 years ago, F.R. Lillie reported chemotaxis in animal sperm for the first time (Lillie, 1912). Chemo-taxis refers to the directed movement of a cell or organism to the source of a chemical gradient; the chemical agent that elicits this movement is called a chemoattrac-tant. Chemotaxis had previously been shown by Pfeffer (1884) for fern spermatozoids; however, attempts to demonstrate...
Phytochromes are plant photoreceptors important for development and adaptation to the environment. Phytochrome A (PHYA) is essential for the far-red (FR) high-irradiance responses (HIRs), which are of particular ecological relevance as they enable plants to establish under shade conditions. PHYA and HIRs have been considered unique to seed plants because the divergence of seed plants and crypto...
The distinct distribution and abundance of C-to-U and U-to-C RNA editing among land plants suggest that these two processes originated and evolve independently, but the paucity of information from several key lineages limits our understanding of their evolution. To examine the evolutionary diversity of RNA editing among ferns, we sequenced the plastid transcriptomes from two early diverging spe...
Cyrtomium falcatum is a popular ornamental fern cultivated worldwide. Native to the Korean Peninsula, Japan, and Dokdo Island in the Sea of Japan, it is the only fern present on Dokdo Island. We isolated and characterized the chloroplast (cp) genome of C. falcatum, and compared it with those of closely related species. The genes trnV-GAC and trnV-GAU were found to be present within the cp genom...
The dyeing industry uses many chemicals and dyes. After the dying process is completed, they release a significant amount of dyes in wastewater. dyes’ color emissions are extremely poisonous dangerous for aquatic terrestrial life. Due to toxic nature dyes, current study was carried out evaluate whether it would be effective employ an adsorption procedure with leaves from Adiantum capillus-vener...
گیاه آدیانتوم متعلق به خانواده آیانتاسه است که در ایران فقط یک گونه از آن با نام پرسیاوش (Adiantum capillus-veneris) وجود دارد. این گیاه از نظر پزشکی جهت درمان بیماریهای تنفسی، برونشیت، سرماخوردگی و سرفه مورد استفاده قرار میگیرد. در این پژوهش اسانس بخشهای هوایی سرخس به کمک روش تقطیر با آب تهیه و به کمک دستگاه GC/MS تجزیه و تحلیل گردید. اسانس جدا شده از گیاه شامل 20 نوع ترکیب بود که 4/75% کل...
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