Introgression between Betula tianshanica and Betula microphylla and its implications for conservation
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منابع مشابه
Wood Anatomy and Relationships of Betula uber
Wood anatomy of Betula uber (Ashe) Fernald is described and compared with woods of other birches belonging to series Humiles and series Costatae. Anatomically, wood of B. uber is typical of birches in general. On the basis of pore size and frequency, fiber characteristics, axial xylem parenchyma distribution, and absence of aggregate rays, it is argued that B. uber is properly classified in ser...
متن کاملPhylogeny of chitinases and its implications for estimating horizontal gene transfer from chitinase-transgenic silver birch (Betula pendula).
Chitinases are hydrolytic enzymes that have been employed in biotechnology in attempts to increase plants' resistance against fungal pathogens. Genetically modified plants have given rise to concerns of the spreading of transgenes into the environment through vertical or horizontal gene transfer (HGT). In this study, chitinase-like sequences from silver birch (Betula pendula) EST-libraries were...
متن کاملجداسازی و شناسایی قارچهای همراه بذر درختان توس (Betula pendula, Betula litwinowii) در جنگلهای شمال کشور
توس (Birch) از درختان مهم جنگلهای شمال کشور است که در معرض انقراض قرار دارد. زادآوری طبیعی این گونهی با ارزش، به دلیل وجود عوامل محدود کننده ازجمله آفات و عوامل بیماری‌زا؛ به‌ویژه قارچها، با مشکلات فراوانی مواجه است. به‌منظور جداسازی و شناسایی قارچهای همراه بذر توس، بذرهای گونه pendula Betula از جنگلهای سیامرزکوه استان گلستان و بذرهای گونه Betula litwinowiiاز سنگده اس...
متن کاملDormancy in Betula as a quantitative state.
Klebs (12) reported in 1914 that the growth of beach, oak, ash, and hornbeam could be maintained even in winter if they were placed under continuous electric light. Since Klebs' report on the effect of day length on the growth of woody plants, there have been many studies pertaining to photoperiodism and dormancy in woody plants. They were amply reviewed by Samish (21), Wareing (24,26), and Nit...
متن کاملEssential Oil of Betula pendula Roth. Buds
The essential oil of Betula pendula Roth. buds was obtained using both hydrodistillation and microdistillation techniques and their chemical compositions were analyzed using both gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Overall, more than 50 compounds were identified representing 80% and 92% for hydrodistillation and microdistillation, respectively. The main com...
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ژورنال
عنوان ژورنال: PLANTS, PEOPLE, PLANET
سال: 2021
ISSN: 2572-2611,2572-2611
DOI: 10.1002/ppp3.10182