Pollen morphology of selected taxa of Ehretiaceae from Western Ghats, India.
Journal Title: Annals of Plant Sciences - Year 2018, Vol 7, Issue 11
Abstract
Pollen Morphology is an important tool in the identification of a genera. Data on pollen morphology is used as a reference in other fields of palynology like allergic studies, melissopalynology, tracing the history of vegetation, genetic and evolutionary studies, climate change studies etc. Pollen morphology of two genera of Ehretiaceae family is studied using Scanning electron microscope. Palynological contributions are still fragmentary in the family Ehretiaceae of southern India. Ehretia pubescens Benth is a small tree belonging to Ehretiaceae family located at the foothill of Chamundi hill reserve forest which is a part of Western ghat near Mysuru and Cormona retusa (Vahl) Masam is a shrub found 3400ft above on top of Chamundi Hill. Pollen grains were acetolyzed and Scanning Electron Microscopic studies conducted to obtain data on pollen morphology. The study is conducted to assess the taxonomic significance of pollen morphology in relation to their phylogenetic origin of the two genera of Ehretiaceae in the region. The palynological evidence shows Ehretia pubescens with tri-zonocolporate and heterocolpate pollen grains and Cormona retusa with tricolpate pollen grain without the pseudocolpi. Both genera have foveolate tectum. Palynological data indicate that these two naturalized taxa ie. Ehretia pubescens and Cormona retusa belong to two different lineage of Ehretia and can be identified by their pollen morphology. Diversity in the pollen characters points towards the eurypalynous nature in Ehretiaceae.
Authors and Affiliations
Amalaurpava Mary Michael, Vijay Gopal Gumma
Keywords
Related Articles
- EP ID EP406687
- DOI 10.21746/aps.2018.7.11.1
- Views 108
- Downloads 0
Estimating lipids for bioprospecting: A case study with Deepor beel algae
Microalgae have been considered as ideal candidates for biodiesel production and other bio-products. They have received extensive research for bioprospecting during the past few decades. Chlorophycean algae are one of th...
A new distributional record Solanum erianthum D. Don from family Solanaceae to the flora of Nasik District (Maharashtra), India.
Nasik is one of the districts in Maharashtra endowed with enormous diversity of cryptogamic and phanerogamic flora. The present paper deals with the addition of 1 new plant species of angiospermic taxa to the flora of th...
Assessment of Arbuscular Mycorrhizal (AM) fungi of Glyphochloa santapaui: Vulnerable and endemic grass species of Maharashtra, India.
Glyphochloa santapaui (S.K. Jain & Deshp.) Clayton santapaui is endemic to Maharashtra state restricted to Ferricrete-Lateritic rocky plateaus at Sindhudurg and Ratnagiri district. Due to ongoing anthropogenic threats th...
Palyno-taxonomic studies of some tree species of Fabaceae from Sajjan Niwas Bagh of Udaipur District, Rajasthan, India.
Green corridors are the key elements of urban ecology. These corridors include both new inceptions and historical gardens. Udaipur the historically glorified city of Rajasthan state holds Sajjan Niwas Bagh is popularly k...
Effect of post-harvest treatment and storage temperature on fragrance of Jasmine (J. grandiflorum)
The postharvest experiment was conducted to maximize the shelf life of Jasminum grandiflorum without losing its fragrance using with different chemical solution in department of Crop Physiology, Tamilnadu Agricultural Un...