[Cytological comparison of anther and pollen growth in Liriope spicata var. prolifera and L. spicata]. 2009

Qun Zhou, and Jian-Qiu Zhou, and Jun-Qi Cheng, and Jing-Jing Wang, and Jia-Chun Chen
Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Science, Huazhong University of Science and Technology, Wuhan 430030, China. zqtcm@163.com

OBJECTIVE To compare the difference of anther and pollen growth between Liriope spicata var. prolifera and L. spicate, and investigate the mechanism of the sterility of Liriope spicata var. prolifera. METHODS A comparative study on anther and pollen growth process was carried out between L. spicata var. prolifera and L. spicata by means of paraffin section. RESULTS In L. spicata, the tapetum was secretory tapetum and began to degrade during dyad stage. The cells of tapetum and middle layer disappeared thoroughly when pollens were fully mature at 3-celled stage. In L. spicata var. prolifera, the degradation of the tapetum took place at the early time of meiosis stage and the tapetum cells inflated like vacuolization. The mononuclear pollens were abortive, which eventually formed abnormal pollens. CONCLUSIONS The pollen abortion of L. spicata var. prolifera is associated with tapetum heteroplasia and degradation in advance.

UI MeSH Term Description Entries
D008540 Meiosis A type of CELL NUCLEUS division, occurring during maturation of the GERM CELLS. Two successive cell nucleus divisions following a single chromosome duplication (S PHASE) result in daughter cells with half the number of CHROMOSOMES as the parent cells. M Phase, Meiotic,Meiotic M Phase,M Phases, Meiotic,Meioses,Meiotic M Phases,Phase, Meiotic M,Phases, Meiotic M
D010946 Plants, Medicinal Plants whose roots, leaves, seeds, bark, or other constituent parts possess therapeutic, tonic, purgative, curative or other pharmacologic attributes, when administered to man or animals. Herbs, Medicinal,Medicinal Herbs,Healing Plants,Medicinal Plants,Pharmaceutical Plants,Healing Plant,Herb, Medicinal,Medicinal Herb,Medicinal Plant,Pharmaceutical Plant,Plant, Healing,Plant, Medicinal,Plant, Pharmaceutical,Plants, Healing,Plants, Pharmaceutical
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
D051479 Plant Infertility The failure of PLANTS to complete fertilization and obtain seed (SEEDS) as a result of defective POLLEN or ovules, or other aberrations. (Dict. of Plant Genet. and Mol. Biol., 1998) Infertility, Plant,Reproductive Sterility in Plants,Reproductive Sterility, Plants,Sterility, Reproductive, Plants
D031424 Liriope Plant A plant genus of the family Asparagaceae. Members contain ruscogenin. Do not confuse with the Liriope jellyfish (CNIDARIA). Lilyturf,Liriope muscari,Liriope spicatum,Lilyturfs,Liriope Plants,Plant, Liriope,Plants, Liriope
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

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