Male gametes and fertilization in angiosperms
نویسندگان
چکیده
منابع مشابه
Making male gametes in culture.
M aking sperm in a culture dish has been a long-term goal of reproductive biologists. In 2010, a group of investigators from Yokohama, Japan, reinvestigated an organ culture system that was originally used for testicular tissue in the 1960s (1–3). By using better molecular markers, they were able to demonstrate that some cells in this culture system underwent complete meiosis to form round sper...
متن کاملCalcium function and distribution during fertilization in angiosperms.
Calcium has an essential signaling, physiological, and regulatory role during sexual reproduction in flowering plants; elevation of calcium amounts is an accurate predictor of plant fertility. Calcium is present in three forms: (1) covalently bound calcium, (2) loosely bound calcium typically associated with fixed and mobile anions (ionic bonding); and (3) cytosolic free calcium-an important se...
متن کاملThe origin of male gametes
References 1. Yokoyama, S. (2000). Molecular evolution of vertebrate visual pigments. Prog. Retin. Eye Res. 19, 385–419. 2. Dulai, K.S., von Dornum, M., Mollon, J.D., and Hunt, D.M. (1999). The evolution of trichromatic color vision by opsin gene duplication in New World and Old World primates. Genome Res. 9, 629–638. 3. Woodburne, M.O., Rich, T.H., and Springer, M.S. (2003). The evolution of t...
متن کاملExpression of epithelial cadherin in the human male reproductive tract and gametes and evidence of its participation in fertilization.
Epithelial cadherin (E-cadherin) has been involved in several calcium-dependent cell-cell adhesion events; however, its participation in gamete interaction has not been fully investigated. Our results have demonstrated expression of E-cadherin mRNA in the human male reproductive tract showing higher levels in the caput, corpus and cauda epididymis than in the testis. The mature 122 kDa E-cadher...
متن کاملSelective Fertilization among the Gametes from the Same Individuals.
Mar. 22 4:55-7:45 P.M. 6:22P.M. 162.5 0.0 Mar. 23 5:05-6:45 A.M. 6:11 A.M. 162.5 0.0 Mar. 23 4:54-7:52 P.M. 6:23 P.M. 162.9 2.0 Broad minimum. Mar. 24 5:10-6:45 A.M. 6:10 A.M. 162.7 1.5 Mar. 24 4:55-7:50 P.M. 6:23 P.M. 162.5 2.0 Very broad minimum for about 1 hour. Mar. 25 5:05-6:50 A.M. 6:08 A.M. 162.6 1.5Mar. 25 4:55-7:55 P.M. 6:24 P.M. 162.5 0.0 Mar. 25 8:00-8:35 P.M. 162.5 0.5 These reading...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1993
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1993.tb03917.x