Flowering biology and structure of floral nectaries in Galanthus nivalis L.
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چکیده
منابع مشابه
Biosynthesis, primary structure and molecular cloning of snowdrop (Galanthus nivalis L.) lectin.
Poly(A)-rich RNA isolated from ripening ovaries of snowdrop (Galanthus nivalis L.) yielded a single 17-kDa lectin polypeptide upon translation in a wheat-germ cell-free system. This lectin was purified by affinity chromatography. Translation of the same RNA in Xenopus leavis oocytes revealed a lectin polypeptide which was about 2 kDa smaller than the in vitro synthesized precursor, suggesting t...
متن کاملBiosynthesis of the Snowdrop (Galanthus nivalis) Lectin in Ripening Ovaries.
The biosynthesis and processing of the Galanthus nivalis agglutinin were studied in vivo in ripening snowdrop ovaries. Using labeling and pulse chase labeling experiments it could be demonstrated that the snowdrop lectin is synthesized as a precursor of relative molecular weight (M(r)) 15,000 which is posttranslationally converted into the authentic lectin polypeptide of M(r) 13,000 with a half...
متن کاملStructure of fl oral nectaries in Aesculus hippocastanum L
Representatives of the family Sapindaceae exhibit high morphological diversity of the nectary structure. The present paper shows for the fi rst time the results of micromorphological, anatomical, and ultrastructural analyses of fl oral nectaries in Aesculus hippocastanum. We have also described the forage and signal attractants of these fl owers, which are important for the ecology of pollinati...
متن کاملLocalization and topogenesis studies of cytoplasmic and vacuolar homologs of the Galanthus nivalis agglutinin.
The Galanthus nivalis agglutinin (GNA) is synthesized as a preproprotein. To corroborate the role of the different targeting peptides in the topogenesis of GNA and related proteins, different constructs were made whereby both the complete original GNA gene and different truncated sequences were coupled to the enhanced green fluorescent protein (EGFP). In addition, a GNA ortholog from rice that ...
متن کاملSeed development and maturation in early spring-flowering Galanthus nivalis and Narcissus pseudonarcissus continues post-shedding with little evidence of maturation in planta
BACKGROUND AND AIMS Seeds of the moist temperate woodland species Galanthus nivalis and Narcissus pseudonarcissus, dispersed during spring or early summer, germinated poorly in laboratory tests. Seed development and maturation were studied to better understand the progression from developmental to germinable mode in order to improve seed collection and germination practices in these and similar...
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ژورنال
عنوان ژورنال: Acta Societatis Botanicorum Poloniae
سال: 2016
ISSN: 2083-9480
DOI: 10.5586/asbp.3486