Uncommon Karyological Features in the Anther Tapetum of some Pedicularieae (Scrophulariaceae)
نویسندگان
چکیده
منابع مشابه
Specification of tapetum and microsporocyte cells within the anther.
Flowering plants form male reproductive cells (microsporocytes) during sporophytic generation, which subsequently differentiate into multicellular male gametes in the gametophytic generation. The tapetum is a somatic helper tissue neighboring microsporocytes and supporting gametogenesis. The mechanism controlling the specification of the tapetum and microsporocyte cell fate within the anther ha...
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In the present study, seed surface ornamentations in 31 species (34 populations) and the capsule surface sculpturing in five species of the genus Scrophularia L. distributed in Iran were examined using Scanning Electronic Microscopy. Based on the published seed surface terminologies, all examined seeds show the reticulate pattern with scalariform inner ornamentations. However, there is enough b...
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15 صفحه اولExpression and localization of two anther-specific genes in the tapetum and microspore of Lilium longiflorum
Two stage-specific genes have been isolated from a subtractive cDNA library constructed from developing anthers of Lilium longiflorum. Tandem 5ˊand 3ˊ-rapid amplifications of cDNA ends with polymerase chain reaction (5ˊand 3ˊ-RACE-PCR) were used to obtain the full length cDNA sequences. The LLA89 cDNA contained an open reading frame of 303 bp encoding an acidic polypeptide of 100 amino acids wi...
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توسیع تعدادی از نامساوی های چند جمله ای در مشتق قطبی
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ژورنال
عنوان ژورنال: Caryologia
سال: 1974
ISSN: 0008-7114,2165-5391
DOI: 10.1080/00087114.1974.10796572