Biomaterial Database

Peptide signaling in pollen-pistil interactions. 2010

Tetsuya Higashiyama

Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602 Aichi, Japan/PRESTO, JST. higashi@bio.nagoya-u.ac.jp

Plant fertilization is achieved through the involvement of various pollen-pistil interactions. Self-/non-self-recognition in pollination is important to avoid inbreeding, and directional and sustainable control of pollen tube growth is critical for the pollen tube to deliver male germ cells. Recently, various secreted peptides (polypeptides) have been reported to be involved in cell-cell communication of pollen-pistil interactions. These include determinants of self-incompatibility, factors for pollen germination and tube growth, and pollen tube attractants. Interestingly, many of them are cysteine-rich peptides/polypeptides (CRPs). In this review, I focus on the peptides involved in pollen-pistil interactions and discuss properties of peptide signaling in each step from pollination to fertilization.

UI	MeSH Term	Description	Entries
D010940	Plant Proteins	Proteins found in plants (flowers, herbs, shrubs, trees, etc.). The concept does not include proteins found in vegetables for which PLANT PROTEINS, DIETARY is available.	Plant Protein,Protein, Plant,Proteins, Plant
D011058	Pollen	The fertilizing element of plants that contains the male GAMETOPHYTES.	Male Gametes, Plant,Male Gametophytes,Microspores, Plant,Plant Microspores,Pollen Grains,Gamete, Plant Male,Gametes, Plant Male,Gametophyte, Male,Gametophytes, Male,Grain, Pollen,Grains, Pollen,Male Gamete, Plant,Male Gametophyte,Microspore, Plant,Plant Male Gamete,Plant Male Gametes,Plant Microspore,Pollen Grain
D005306	Fertilization	The fusion of a spermatozoon (SPERMATOZOA) with an OVUM thus resulting in the formation of a ZYGOTE.	Conception,Fertilization, Delayed,Fertilization, Polyspermic,Conceptions,Delayed Fertilization,Delayed Fertilizations,Fertilizations,Fertilizations, Delayed,Fertilizations, Polyspermic,Polyspermic Fertilization,Polyspermic Fertilizations
D015398	Signal Transduction	The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.	Cell Signaling,Receptor-Mediated Signal Transduction,Signal Pathways,Receptor Mediated Signal Transduction,Signal Transduction Pathways,Signal Transduction Systems,Pathway, Signal,Pathway, Signal Transduction,Pathways, Signal,Pathways, Signal Transduction,Receptor-Mediated Signal Transductions,Signal Pathway,Signal Transduction Pathway,Signal Transduction System,Signal Transduction, Receptor-Mediated,Signal Transductions,Signal Transductions, Receptor-Mediated,System, Signal Transduction,Systems, Signal Transduction,Transduction, Signal,Transductions, Signal
D053205	Pollen Tube	A growth from a pollen grain down into the flower style which allows two sperm to pass, one to the ovum within the ovule, and the other to the central cell of the ovule to produce endosperm of SEEDS.	Pollen Tubes,Tube, Pollen,Tubes, Pollen
D054817	Pollination	The transfer of POLLEN grains (male gametes) to the plant ovule (female gamete).
D035264	Flowers	The reproductive organs of plants.	Blooms, Plant,Blossoms,Pistil,Plant Style,Anther, Plant,Carpal, Plant,Carpals, Plant,Filament, Flower,Flower Filament,Ovary, Plant,Petals, Plant,Plant Anther,Plant Calyx,Plant Carpals,Plant Corolla,Plant Ovary,Plant Petals,Plant Sepals,Plant Stamen,Plant Stigma,Sepals, Plant,Stamen, Plant,Stigma, Plant,Style, Plant,Anthers, Plant,Bloom, Plant,Blossom,Calyx, Plant,Calyxs, Plant,Corolla, Plant,Corollas, Plant,Filaments, Flower,Flower,Flower Filaments,Ovaries, Plant,Petal, Plant,Pistils,Plant Anthers,Plant Bloom,Plant Blooms,Plant Calyxs,Plant Carpal,Plant Corollas,Plant Ovaries,Plant Petal,Plant Sepal,Plant Stamens,Plant Stigmas,Plant Styles,Sepal, Plant,Stamens, Plant,Stigmas, Plant,Styles, Plant
D063245	Plant Development	Processes orchestrated or driven by a plethora of genes, plant hormones, and inherent biological timing mechanisms facilitated by secondary molecules, which result in the systematic transformation of plants and plant parts, from one stage of maturity to another.	Plant Morphogenesis,Development, Plant,Developments, Plant,Morphogeneses, Plant,Morphogenesis, Plant,Plant Developments,Plant Morphogeneses