内容简介· ··· The identification of pollen is widely used in the reconstruction of vegetation, the climate of the past, and plant biodiversity. Studies concerning pollen structure, size, and form are key issues in basic sciences as plant taxonomy and evolution. But they also play an importa...
The structure of pollen was described in detail using the following parameters i.e. their shape and size, type and number, sculpturing and apertures of exine which may be very useful in identification and classification of pollen grains.Frenguelli, Giuseppe...
Identification and characterization of the Poa p IX group of basic allergens of Kentucky bluegrass pollen. 来自 NCBI 喜欢 0 阅读量: 43 作者:E Olsen,L Zhang,RD Hill,FT Kisil,SS Mohapatra 摘要: We reported previously the primary structure of three full-length cDNA clones that encode a new ...
. Subsequently, phylogenetic relationship, gene structure, gene duplication, transcriptome data and qRT-PCR were conducted on theseBBXgene members. The transcript analysis revealed that twelvePbBBXgenes (48%) were specifically expressed in pear pollen tubes. Furthermore, qRT-PCR analysis indicated that...
Ripe pollen structure and histochemistry of some gymnosperms Some aspects of pollen cytology at dispersal were studied in 12 species of gymnosperms. The pollen grains differed in: 1. volume and cell number; 2. polari... E Pacini,GG Franchi,M Ripaccioli - 《Plant Systematics & Evolution》 被...
When pollen arrives on the surface of a compatible stigma it undergoes a complex series of regulated cytoplasmic rearrangements leading to the emergence of a cylindrical structure known as pollen tube, with the main purpose to carry and deliver sperm cells to the embryo sac for the double ...
Data on the genetic structure of tree and shrub populations on the continental scale have accumulated dramatically over the past decade. However, our abili... Martin,Lascoux,Anna,... - 《Philosophical Transactions of the Royal Society B Biological Sciences》 被引量: 172发表: 2004年 Pollen Recor...
Therefore, pollen morphology supports- the treatment of regarding L. sinense cv. Chuanxiong and L. sinense cv. Fuxiong as cultivated varieties of L. sinense.关键词: Ligusticum sinense sinense cv. Chuanxiong L. sinense cv. Fuxiong Pol-len morphology 被引量: 5 年份: 1990 ...
As the structure and the dynamics of Art v 1 have been mostly described for its recombinant, non-glycosylated form, which does not occur in normal plant physiology, the present work intends to obtain a three-dimensional model for Art v 1 native O-glycosylation structure and to evaluate the ...
Effects of ants, ground beetles and the seed-fall patterns on myrmecochory of Erythronium japonicum Decne. (Liliaceae)... AK Hansen,YK Ortega,DL Six - 《Northwest Science》 被引量: 42发表: 2009年 Dry matter production, population structure and environmental conditions of the spring ephemeral Er...