Pollen Morphology in Two Urgineoid Species of Drimia (Baker) Jessop

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Prathima, P. and Shiva Kameshwari, M.N. and Nijagunaiah, R. (2016) Pollen Morphology in Two Urgineoid Species of Drimia (Baker) Jessop. Journal of Applied and Natural Science, 8 (1). pp. 144-149. ISSN 0974-941 1

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Official URL: http://www.ansfoundation.org/abstract/abstract8130

Abstract

Pollen grains of eight accessions of Urginea indica (Roxb) Kunth. and two accessions of Urgineawightii (Wight) Lakshmin. were examined by Light microscopy and Scanning electron microscopy. Detailed pollen morphological characters are given for these accessions. Our investigation revealed several variations in pollen size, exine ornamentation among the accessions of U. indica (Roxb) Kunth. and U. wightii (Wight) Lakshmin. The study confirmed that the exine sculpting provides valuable characters for separating the species of Urginea. Reticulate ornamentation of the exine was observed in the accessions of U. indica complex and perforated exine ornamentation in accessions of U. wightii complex. Minor variations with regard to measurements of dimensions in size, shape and ornamentation were also observed in accessions of U. indica and U. wightii . Pollen fertility analysis revealed highest percentage fertility in Sitampoondi accession of U. indica complex and Gulbargha accession of U. wightii complex but in most of the accessions seed setting is not observed in natural conditions. Pollen germination studies revealed highest germination rate in Brew Baker’s and Kwack medium supplemented with 25% sucrose concentration for Urginea pollen.

Item Type: Article
Uncontrolled Keywords: Accessions; Hyacinthaceae; Pollen Fertility; Scanning Electron Microscope; Urginea Indica; Urginea Wightii
Subjects: Faculty of Science > Environmental and Biological Sciences > Botany
Divisions: Jnana Bharathi / Central College Campus > Department of Botany
Depositing User: Ms. Sathyavathi N
Date Deposited: 22 Aug 2016 06:16
Last Modified: 22 Aug 2016 06:16
URI: http://eprints-bangaloreuniversity.in/id/eprint/4686

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