Samydurai P
@lrggac.in
GUEST LECTURER, BOTANY
LRG GOVT ARTS COLLEGE FOR WOMEN
EDUCATION
M.Sc., B.Ed., M.Phil., PGDB., PH.D
RESEARCH, TEACHING, or OTHER INTERESTS
Plant Science, Biotechnology, Agricultural and Biological Sciences, Ecology, Evolution, Behavior and Systematics
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Muthulakshmipechiammal Pechimuthu, Rajendran Arumugam, and Samydurai Ponnusamy
University of Szeged
Pollen morphology of 18 species from the genus Impatiens collected from different localities in Nilgiris, Tamil Nadu was evaluated using scanning electron microscopy (SEM) during the period of February 2017 to November 2019. From the observation of pollen it was found to be structurally monad; prolate, sub-prolate and prolate-spheroidal in equatorial view; and circular, rectangular, triangular, quinquangular, elliptic and quadrangular in polar view. The apertures varied from dicolpate, tricolpate to tetracolpate. The main ornamentation type was reticulate in most of the species except Impatiens fruticosa which showed echinate ornamentation. The variations in pollen structure within the species were useful for the identification and classification of the genus Impatiens. The high structural diversity renders important taxonomic value for species differentiation.
Ponnusamy Samydurai
Journal of Applied Pharmaceutical Science
The most important objective of this study was to estimate the nutritional contents like total carbohydrate, lipids, protein, fiber, phenol, flavonoids and moisture content and to evaluate the properties of antioxidant activity. The content of total phenols in the extract was determined spectrometrically according to the Folin-Ciocalteu procedure and calculated as gallic acid equivalent. The achievable antioxidant activity of 2,2-diphenylpicryl-1-picryl-hydrazyl (DPPH) radical scavenging, 2,2’azinobis (3ethyl-benzothiozoline-6-sulphonic acid) disodium salt (ABTS·+) assay, ferric reducing antioxidant power (FRAP) assay, metal chelating activity, superoxide radical scavenging activity was investigated and the result suggested that this freshly harvested plant tubers have more nutritionally potential constituent and antioxidant ability to restore the cell wall damage, mortify and malnutrition.