Přednáška z Anatomie a fyziologie rostlin
| datum |
9.4.2013 |
| přednáší |
Dr. Said Hafidh (ÚEB AV ČR, v.v.i.) |
| název |
The Essence of Maleness in flowering plants; current status and future prospects
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| anotace |
Sexual plant reproduction has been at the forefront for the success of major world food supply such as grains, cereals and vegetables. However, reproductive processes including gamete production, are particularly vulnerable on the on-going global climate changes and environmental stresses associated with, and thus present an alarming threat on food supply. Major biotechnological development in improving crop yield in current arable land have benefited immensely on fundamental aspects of plant reproduction research. Several genetic modules such as SRY locus in mammals and associate genes and MS1 gene in Arabidopsis have been demonstrated as male-determining and differentiation factors. A search for genes involved in male fertility and their inter-relationship with the female gametophyte during fertilization has received huge attention in the last decade. Is there an equivalent of genetic constituents in flowering plants that defines “maleness” and impacted on plant fertility? In this gathering, I will share a fair part of my research in the understanding of mechanisms that regulate spermatogenesis and germ cell differentiation in flowering plants. A core part of this seminar will be on the interactive genetic networks that control germ cell division and sperm cell differentiation. Further, I will discuss a new initiative phenomenon of mRNA storage in the tobacco male gametophyte and its implications in plant fertility. Emphasize on the analogy of this concept to other model organisms with role in gametogenesis (such as C. elegans) and neuronal growth in mammals will be addressed. I look forward for fruitful discussion.
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| materiály |
pozvánka (PDF)
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