A Lipid Transfer–like Protein Is Necessary for Lily Pollen Tube Adhesion to an in Vitro Stylar Matrix
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چکیده
منابع مشابه
A lily stylar pectin is necessary for pollen tube adhesion to an in vitro stylar matrix.
Pollen tube cells adhere to the wall surface of the stylar transmitting tract epidermis in lily. This adhesion has been proposed as essential for the proper delivery of the sperm cells to the ovule. An in vitro adhesion bioassay has been used to isolate two stylar molecules required for lily pollen tube adhesion. The first molecule was determined to be a small, cysteine-rich protein with some s...
متن کاملA lipid transfer-like protein is necessary for lily pollen tube adhesion to an in vitro stylar matrix.
Flowering plants possess specialized extracellular matrices in the female organs of the flower that support pollen tube growth and sperm cell transfer along the transmitting tract of the gynoecium. Transport of the pollen tube cell and the sperm cells involves a cell adhesion and migration event in species such as lily that possess a transmitting tract epidermis in the stigma, style, and ovary....
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A dynamic actin cytoskeleton is essential for pollen germination and tube growth. However, the molecular mechanisms underlying the organization and turnover of the actin cytoskeleton in pollen remain poorly understood. Villin plays a key role in the formation of higher-order structures from actin filaments and in the regulation of actin dynamics in eukaryotic cells. It belongs to the villin/gel...
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Exhibiting rapid polarized growth, the pollen tube delivers the male gametes into the ovule for fertilization in higher plants. To get an overall picture of gene expression during pollen germination and pollen tube growth, we profiled the transcription patterns of 1,536 pollen cDNAs from lily (Lilium longiflorum) by microarray. Among those that exhibited significant differential expression, a c...
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The lily LLA23 protein represents a novel member of water-deficit/ripening-induced protein family (Plant Cell Physiol. 41: 477-485, 2000). Examination of the C-terminal half of LLA23 reveals the presence of basic regions that are reminiscent of a nuclear localization signal (NLS). To investigate the nuclear targeting property of NLS in LLA23, a green fluorescent protein (GFP) gene fused with th...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2000
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.12.1.151