Variation of Palynomorphological and pollen production of some invasive plant species of Asteraceae family in conservation areas of tropical rain forest, West Sumatra, Indonesia
Paper Details
Variation of Palynomorphological and pollen production of some invasive plant species of Asteraceae family in conservation areas of tropical rain forest, West Sumatra, Indonesia
Abstract
Some conservation areas in tropical forests of West Sumatra have been invaded by some invasive plants species from family Asteraceae. Characterization and pollen production of these plants are very useful to identify and clarify their invasiveness. This paper analyzed the ability of twelve invasive plants in producing the pollens, as determinant agents of reproductive biology. The results of the pollen analysis showed that the pollen number per flower among invasive plants species were varied from 389 ± 14 in Tridax procumbens L. to 3739 ± 105 in Mikania micrantha Kunth. Most of species studied (92%) were produced the high pollen numbers that implied the xenogamous pollination system while T. procumbens produced the small number of pollen. There were variations in shape, ornamentation, and aperture of the pollen of twelve invasive plants studied. Three types of pollen shape were detected, i.e. Oblate-spheroidal shape (Ageratum conyzoides (L) L., Crassocephalum crepidioides (Benth.) S. Moore, Elepanthopus mollis L., Elepanthopus tmentosus L. and T. procumbens), spheroidal shape (Clibadium surinamense L.) and prolate-spheroidal shape (Erigeron sumatrensis Retz., Austroeupatorium inulaefolium (Kunth.) R. M. King. & H. Rob., M. micrantha, Sphagneticola trilobata (L.) Pruski. Acmella paniculata Wall. ex DC. R. K. Jansen and Vernonia sinerea (L.) Lex.. The pollen surface of all species studied covered with spines. Two types of ornamentation were detected in the invasive plant studied, i,e, lophate type in E. mollis, E. tomentosus.and V. sinerea and echinate type in others nine invasive plant species studied.
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Syamsuardi, Wella Yuranti, Nurainas (2018), Variation of Palynomorphological and pollen production of some invasive plant species of Asteraceae family in conservation areas of tropical rain forest, West Sumatra, Indonesia; JBES, V12, N4, April, P139-145
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