نتایج جستجو برای: silene

تعداد نتایج: 999  

Journal: :Chemical communications 2014
Michal Czyzewski Jonathan D Sellars Tamaz Guliashvili Julius Tibbelin Lisa Johnstone Justin Bower Matthew Box Robert D M Davies Henrik Ottosson Patrick G Steel

The synthesis of silaheterocycles through the first examples of an intramolecular silene Diels-Alder reaction is described.

Journal: :Nature Chemistry 2008

2001
Michael E. HOOD Oscar J. ROCHA Janis ANTONOVICS

Microbotryum violaceum (anther-smut) from Silene caroliniana and S. virginica produced promycelia that frequently appeared to contain more than three cells according to the number of septations. This is in contrast to samples from S. latifolia and to previous descriptions of this species. Apparent four-celled promycelia contained three nucleate cells and one anucleate zone. Anucleate zones were...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم پایه 1392

جنس silene l. بزرگترین جنس از خانواده caryophyllaceae است. این جنس در حدو 750 گونه در سرتاسر دنیا دارد. بیشترین پراکنش آن در نیمکره شمالی، اروپا، آسیا و آفریقای شمالی است. آسیای جنوب­غربی و منطقه جنوب بالکان دو مراکز اصلی تنوع زیستی این جنس در دنیا به شمار می آیند. 141 گونه از این جنس در محدوده جغرافیایی ایران می­رویند که حدود 35 گونه آن انحصاری ایران هستند. مطالعه سیستماتیکی بر روی 195 جمعیت م...

Large and diverse genera, such as Silene need more reliable morphological traits for the credible identification and delimitation of the species. Despite the fact that the type of indumentum among the species of Silene had been addressed in most available revisions, monographs and floristic studies, the trichome-based features and their adaptational importance have not been investigated explici...

ژورنال: :مجله گیاهشناسی ایران 2015
فرزانه سادات قاسمی عادل جلیلی سعیده سادات میرزاده واقفی سهیلا اشرافی

عدد کروموزومی و کاریوتیپ گونه های: (2n=32) ranunculus dolosus (ranunculaceae) وsilene conoidea (caryophyllaceae)، ((2n=24 از ایران گزارش می شوند. رویشگاههای طبیعی این گونه ها شمال غرب ایران است. ایدیوگرام گونه ها ارائه شدند. تقارن کاریوتیپی در گونه ranunculus dolosus؛1b و در گونه silene conoidea ؛1a می باشند. فرمول کاریوتیپی در گونهranunculus dolosus ؛ 8m+6sm+2st و درگونه silene conoidea؛12m می...

2016
Juannan Zhou Michele R. Dudash Charles B. Fenster Elizabeth A. Zimmer

PREMISE OF THE STUDY We designed and tested microsatellite markers for the North American native species Silene stellata (Caryophyllaceae) to investigate its population genetic structure and identify selection on floral design through male reproductive success. METHODS AND RESULTS A total of 153 candidate microsatellite loci were isolated based on next-generation sequencing. We identified 18 ...

Journal: رستنیها 2018

During an exploration in boundary areas of Salmas (W Azarbayjan province, Iran) in 2016, an interesting plant from the genus Silene was collected. Determination of the plant material by using Flora Iranica was showed that, it is an unknown plant, but the specimen was determined as Silene armena Boiss. from the section Sclerocalycinae according to identification key of Flora of Turkey and Flora ...

Journal: :Organic & biomolecular chemistry 2006
Jonathan D Sellars Patrick G Steel

A sequence involving dihydroxylation and acid induced fragmentation of silene generated silacyclohexenes represents the key step in a concise synthetic route to beta-hydroxy-delta-lactones.

2012
Erin Chung Elsa Petit Janis Antonovics Amy B Pedersen Michael E Hood

The occurrence of multiple pathogen species on a shared host species is unexpected when they exploit the same micro-niche within the host individual. One explanation for such observations is the presence of pathogen-specific resistances segregating within the host population into sites that are differentially occupied by the competing pathogens. This study used experimental inoculations to test...

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