New views of tapetum ultrastructure and pollen exine development in Arabidopsis thaliana.

The Arabidopsis thaliana pollen cell wall is a complex structure consisting of an outer sporopollenin framework and lipid-rich coat, as well as an inn...
2MB Sizes 0 Downloads 3 Views

Recommend Documents

Gene Regulatory Network for Tapetum Development in Arabidopsis thaliana.
In flowering plants, male gametophyte development occurs in the anther. Tapetum, the innermost of the four anther somatic layers, surrounds the developing reproductive cells to provide materials for pollen development. A genetic pathway of DYT1-TDF1-

DYT1 directly regulates the expression of TDF1 for tapetum development and pollen wall formation in Arabidopsis.
The tapetum plays a critical role during the development and maturation of microspores. DYSFUNCTIONAL TAPETUM 1 (DYT1) is essential for early tapetal development. Here, we determined that the promoter region (-550 to -463 bp) contains indispensable c

Pollen-Specific Aquaporins NIP4;1 and NIP4;2 Are Required for Pollen Development and Pollination in Arabidopsis thaliana.
In flowers with dry stigmas, pollen development, pollination, and pollen tube growth require spatial and temporal regulation of water and nutrient transport. To better understand the molecular mechanisms involved in reproductive processes, we charact

"Out of pollen" hypothesis for origin of new genes in flowering plants: study from Arabidopsis thaliana.
New genes, which provide material for evolutionary innovation, have been extensively studied for many years in animals where it is observed that they commonly show an expression bias for the testis. Thus, the testis is a major source for the generati

Phytosulfokine peptide signaling controls pollen tube growth and funicular pollen tube guidance in Arabidopsis thaliana.
Phytosulfokine (PSK) is a peptide growth factor that requires tyrosine sulfation carried out by tyrosylprotein sulfotransferase (TPST) for its activity. PSK is processed from precursor proteins encoded by five genes in Arabidopsis thaliana and percei

Transcriptome Analysis of Hamelia patens (Rubiaceae) Anthers Reveals Candidate Genes for Tapetum and Pollen Wall Development.
Studies of the anther transcriptome on non-model plants without a known genome are surprisingly scarce. RNA-Seq and digital gene expression (DGE) profiling provides a comprehensive approach to identify candidate genes contributing to developmental pr

Involvement of GPI-anchored lipid transfer proteins in the development of seed coats and pollen in Arabidopsis thaliana.
The non-specific lipid transfer proteins (nsLTPs) constitute a large protein family specific for plants. Proteins from the family are found in all land plants but have not been identified in green algae. Their in vivo functions are still disputed alt

Rice CYP703A3, a cytochrome P450 hydroxylase, is essential for development of anther cuticle and pollen exine.
Anther cuticle and pollen exine act as protective envelopes for the male gametophyte or pollen grain, but the mechanism underlying the synthesis of these lipidic polymers remains unclear. Previously, a tapetum-expressed CYP703A3, a putative cytochrom

Regulation of tapetum-specific A9 promoter by transcription factors AtMYB80, AtMYB1 and AtMYB4 in Arabidopsis thaliana and Nicotiana tabacum.
Tapetum-specific promoters have been successfully used for developing transgenic-based pollination control systems. Although several tapetum-specific promoters have been identified, in-depth studies on regulation of such promoters are scarce. The pre

Structure and evolution analysis of pollen receptor-like kinase in Zea mays and Arabidopsis thaliana.
Receptor-like kinase (RLKs) is an important member in protein kinase family which is widely involved in plant growth, development and defense responses. It is significant to analyze the kinase structure and evolution of pollen RLKs in order to study