Spermidine Is a Morphogenetic Determinant for Cell Fate Specification in the Male Gametophyte of the Water Fern Marsilea vestita
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چکیده
منابع مشابه
Spermidine is a morphogenetic determinant for cell fate specification in the male gametophyte of the water fern Marsilea vestita.
Here, we show that the polyamine spermidine plays a key role as a morphogenetic determinant during spermatid development in the water fern Marsilea vestita. Spermidine levels rise first in sterile jacket cells and then increase dramatically in spermatogenous cells as the spermatids mature. RNA interference and drug treatments were employed to deplete spermidine in the gametophyte at different s...
متن کاملSpermidine Is a Morphogenetic Determinant for Cell Fate Specification in the Male Gametophyte of the Water Fern Marsilea vestita W OA
Here, we show that the polyamine spermidine plays a key role as a morphogenetic determinant during spermatid development in the water fern Marsilea vestita. Spermidine levels rise first in sterile jacket cells and then increase dramatically in spermatogenous cells as the spermatids mature. RNA interference and drug treatments were employed to deplete spermidine in the gametophyte at different s...
متن کاملThe fine structure of fertilization in the fern Marsilea vestita.
The ultrastructural details of fertilization in the fern Marsilea vestita, including gamete approach and fusion, the fate of the spermatozoid organelles and the development of a possible block to polyspermy are described. The spermatozoid approaches the egg through layers of mucilage that surround the megaspores. It moves down the neck of the archegonium into the cavity above the egg. In order ...
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Title of Dissertation: KINESIN MOTOR PROTEINS ARE ESSENTIAL FOR MALE GAMETOPHYTE DEVELOPMENT IN MARSILEA VESTITA Erika Jean Tomei, Doctor of Philosophy, 2016 Dissertation directed by: Professor Stephen M. Wolniak, Department of Cell Biology and Molecular Genetics The male gametophyte of the semi-aquatic fern, Marsilea vestita, produces multiciliated spermatozoids in a rapid developmental sequen...
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this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2010
ISSN: 1532-298X,1040-4651
DOI: 10.1105/tpc.109.073254