نتایج جستجو برای: salix aegyptiaca
تعداد نتایج: 2232 فیلتر نتایج به سال:
Plants re-emit a substantial fraction of their assimilated carbon into the atmosphere as biogenic volatile organic compound. According to the presence of relatively high amount of methanol in herbal distillates, finding different concentrations of ethanol in such drinks is expectable, as several studies appeared that produced ethanol by plants emits into the atmosphere as do methanol. In this s...
در این پژوهش، نانوذرههای نقره (Ag NPs) با استفاده از عصاره برگ بیدمشک (Salix aegyptiaca) بهعنوان عامل کاهنده و پایدارکننده، بر سطح نمونه معدنی کلسیت (CaCO3) قرار گرفتند. تبدیل یونهای +Ag به Ag NPs در یک مدت کوتاه در دمای اتاق انجام شد. بستر کلسیت و نانوچندسازه نقره آن (Ag NPs/Calcite) با استفاده از روشهای طیفسنجی فروسرخ تبدیل فوریه (FTIR)، فرابنفش-مریی (UV-Vis)، پراش پرتو ایکس (XRD)، میکر...
LUFFACHITIN obtained from the residue of the sponge-like dried fruit of Luffa aegyptiaca was developed as a weavable skin substitute in this study. A chemical analysis revealed that LUFFACHITIN was composed of a copolymer containing N-acetyl-glucosamine (~40%) as a major monomer with a filamentary structure as demonstrated by both optical and scanning electron microscopy. The pulp-like white re...
The present study indicates the efficacy of the saponins fraction of the fruit mesocarp extract of Balanites aegyptiaca Del. (Zygophyllace) as a larvicidal agent against the common dengue vector Aedes aegypti mosquito. A series of concentrations of fruit mesocarp extract of B. aegyptiaca fruit, its crude saponin extract and pure saponin fraction were tested against the laboratory-reared third...
زمینه: گیاه سودا آجیپتیکا (suaeda aegyptiaca) متعلق به خانواده اسفنجیان (chenopodiaceae) بوده که دومین رتبه را بین خانواده های گیاهی دنیا از لحاظ تعداد داراست. این گیاه هالوفیت بومی نواحی خشک و نیمه خشک و اراضی شور ساحلی نظیر سواحل خلیج فارس است. دارای برگ های گوشتی، یکساله, بذر روغنی، رشد سریع و تولید مقدار زیاد بیوماس می باشد. هدف از این پژوهش بررسی مقدار روغن، شناسایی و تعیین درصد اسیدهای چر...
4-Coumarate:CoA ligase (4CL) genes are critical for the biosynthesis of plant phenylpropanoids. Here we identified 20 4CL genes in the genomes of two desert poplars (Populus euphratica and P. pruinosa) and salt-sensitive congener (P. trichocarpa), but 12 in Salix suchowensis (Salix willow). Phylogenetic analyses clustered all Salicaceae 4CL genes into two clades, and one of them (corresponding ...
(Phytochemistry, 26, 2418 (1987)) Acylated Luteolin Glucosides from Salix gitgiana. MIzuo MIzuNo*, MAsAyA KATo, MuNEKAzu IINuMA, TosHIyuKI TANAKA, ' ARIKA KIMuRA, HIRoyosHI OHAsHI, HIDEKI SAKAi Besides apigenin and luteolin 7-glucoside, four novel glucosides acylated with acetic, trans-cinnamic, P-coumaric and ferulic acids, respectively were isolated from the leaves of Salix gitgiana (Salicace...
High fidelity calcium carbonate and hydroxyapatite (bio) inorganic replicas of the fibrous network of the dried fruit of Luffa cylindrica are described, utilizing a facile synthetic route. The loofa sponge is a highly complex macroscopic architectural template, an inexpensive and sustainable resource. In the context of the morphosynthesis, the capability of replication of the loofa sponge opens...
Canopy-forming shrubs are reported to be increasing at sites around the circumpolar Arctic. Our results indicate expansion in canopy cover and height of willows on Herschel Island located at 70 degrees north on the western Arctic coast of the Yukon Territory. We examined historic photographs, repeated vegetation surveys, and conducted monitoring of long-term plots and found evidence of increase...
Water is a limiting factor for plant growth and vegetation dynamics in alpine sandy land of the Tibetan Plateau, especially with the increasing frequency of extreme precipitation events and drought caused by climate change. Therefore, a relatively stable water source from either deeper soil profiles or ground water is necessary for plant growth. Understanding the water use strategy of dominant ...
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