Green Sperm. Identification of Male Gamete Promoters in Arabidopsis1[w]

From: Plant Physiology | Date: August 1, 2005| Author: Holmes-Davis, Rachel; McCormick, Sheila; Engel, Michele L | Copyright information

Previously, in an effort to better understand the male contribution to fertilization, we completed a maize (Zea mays) sperm expressed sequence tag project. Here, we used this resource to identify promoters that would direct gene expression in sperm cells. We used reverse transcription-polymerase chain reaction to identify probable sperm-specific transcripts in maize and then identified their best sequence matches in the Arabidopsis (Ambidopsis thaliana) genome. We tested five different Arabid...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and journal articles from HighBeam Research

Green Sperm. Identification of Male Gamete Promoters in Arabidopsis1[w]
Plant Physiology ; Previously, in an effort to better understand the male contribution to fertilization, we completed a maize (Zea mays) sperm expressed sequence tag project. Here, we used this resource to identify promoters that would direct gene expression in sperm cells. We used reverse transcription-polymerase
Arts: BRIEFS
The Hunter Envoy ; Arts: BRIEFS Spermtastic! A quickie review of We are the Sperm Cells If you've been around campus lately, you've probably noticed all of the sperm on the third floor of the west building. And if you haven't, boy, are you missing out! To clarify, We Are the Sperm Cells is a Japanese 'dance-ical',
Genetic control of male germ unit organization in Arabidopsis
Plant Physiology ; Genetic Control of Male Germ Unit Organization in Arabidopsis1 In flowering plants, the vegetative nucleus and the two sperm cells are proposed to form a functional assemblage, the male germ unit (MGU). Here, we describe the developmental pathway of MGU assembly in Arabidopsis and report two
The Ubiquitin-Specific Protease Subfamily UBP3/UBP4 Is Essential for Pollen Development and Transmission in Arabidopsis1[W][OA]
Plant Physiology ; Deubiquitinating enzymes are essential to the ubiquitin (Ub)/26S proteasome system where they release Ub monomers from the primary translation products of poly-Ub and Ub extension genes, recycle Ubs from polyubiquitinated proteins, and reverse the effects of ubiquitination by releasing bound Ubs
SPERM RESEARCH GIVES STERILE MICE FERTILITY
The Washington Post ; Researchers have transferred immature sperm cells into sterile male mice, rendering them fertile. The feat promises to speed scientists' understanding of the complex process by which sperm cells mature in the testes, perhaps leading to treatment for some types of male sterility. The work also could
Sperm cells created in lab.(News)
Evening Chronicle (Newcastle, England) ; Today researchers at Newcastle's Centre for Life announced another medical first after using human bone marrow to create sperm cells. It is hoped the achievement, thanks to the Centre's Prof Karim Nayernia, will help experts understand more about how sperm cells are created and could give baby hope
Control of Male Gametophyte Development
Plant Cell ; INTRODUCTION In a previous review of male gametophyte development (McCormick, 1993), it was noted that the two areas posed by Mascarenhas (1975) as fruitful areas for future research were the following. What are the differences in the two cytoplasms that determine the different cell fates of the
The prospect of all-female conception ; HOME
The Independent - London ; Women might soon be able to produce sperm in a development that could allow lesbian couples to have their own biological daughters, according to a pioneering study published today. Scientists are seeking ethical permission to produce synthetic sperm cells from a woman's bone marrow tissue after
The prospect of all-female conception
Belfast Telegraph ; Scientists are seeking ethical permission to produce synthetic sperm cells from a woman's bone marrow tissue after showing that it possible to produce rudimentary sperm cells from male bone-marrow tissue. The researchers said they had already produced early sperm cells from bone-marrow tissue taken
Spermathecal morphology and sperm dynamics in the female Schizocosa malitiosa (Araneae: Lycosidae)
European Journal of Entomology ; Key words. Genital morphology, spermathecae design, sperm dynamics, reproductive strategies, wolf spiders Abstract. The linkage between spermathecal morphology and sperm dynamics was experimentally analysed in Schizocosa malitiosa (Tullgren, 1905) using histological serial sections and SEM. We