Title

Characterization of the leaf morpho-anatomy of Barringtonia asiatica L. (Lecythidaceae) from Manila and Batangas

Date of Publication

2016

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Biology

Subject Categories

Biology

College

College of Science

Department/Unit

Biology

Thesis Adviser

Emelina H. Mandia

Abstract/Summary

Characterization of the leaf morpho-anatomy of Barringtonia asiatica L. (Lecythidaceae) from Manila and Batangas was carried out. The characters measured were leaf stomatal index, thickness of cuticle, epidermis and total leaf found in Matuod, Lian Batangas and in De La Salle University Manila. Elemental microanalysis on the leaf abaxial surface was done through SEM-EDX. Air quality data were derived from DLSU Earth Lab weather station and DENR. Results showed that the leaves of B. asiatica growing in Batangas have greater stomatal index, cuticle thickness and total leaf while the trees growing in Manila exhibit thicker epidermal layers. Significant differences in all parameters were found between the two sites through MANOVA. Results from SEM-EDX revealed the presence of elements C, O, Na, Mg, Al, Si and Cl in both Manila and Batangas samples. Batangas samples also showed the presence of K, Ca and Fe. Reduced stomatal index, cuticle and total leaf thickness in B. asiatica growing in Manila may be attributed to the phytotoxic effects of O₃, NO₂ and SO₂ found to be higher in Manila based on available weather station readings. Thus, B. asiatica and the morpho-anatomical characters of its leaves are herein considered good air quality indicators.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU21143

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

viii, 70 leaves ; color illustrations ; 28 cm. ; 1 computer disc ; 4 3/4 inches

Keywords

Lecythidaceae -- Philippines

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