Pump mechanism, secondary pollen presentation, psychophily and anemochory in Emilia sonchifolia (L.) DC. (Asteraceae)
Journal Title: Journal of BioScience and Biotechnology - Year 2017, Vol 6, Issue 2
Abstract
Emilia sonchifolia flowers profusely during August-November. The plant produces capitulum inflorescence with only disc florets presenting nectar and pollen as rewards. It is temporally dioecious with strong protandry which prevents autonomous autogamy, minimizes geitonogamy and maximizes xenogamy. The florets exhibit secondary pollen presentation using pump mechanism. The florets produce minute amount of sucrose-rich nectar, and essential and non-essential amino acids. The floral characters typify psychophily but other insects also pollinate the florets. Thrips use this plant as breeding and feeding sites; they largely contribute to geitonogamy. The high natural fruit and seed set rates recorded indicate that geitonogamy and xenogamy are functional but both modes are essentially vectormediated. The function of dual modes of breeding suggests that the plant is selfcompatible, self- as well as cross-pollinating. The fruit is typically an achene and is anemochorous. Seeds germinate only during rainy season and produce new plants within a short time to reproduce sexually. The study suggests that this plant grows in open well drained areas, important as a pioneer species and hence is useful for the restoration of ecologically degraded, damaged and deteriorated habitats.
Authors and Affiliations
Mallikarjun Rao Medabalimi, Jacob Solomon Raju Aluri, Venkata Ramana Kunuku
Keywords
Related Articles
- EP ID EP602542
- DOI -
- Views 92
- Downloads 0
Overexpression of chitinase like protein YKL-40 in leukemia patients
YKL-40 is a member of mammalian chitanase (CHI3L1), expressed and secreted by several types of solid tumor cells, inflammatory cells and stem cells. The precise physiological role of YKL-40 in cancer is still not clear a...
Cloning and molecular analysis of L-asparaginase II gene (ansB)
The deamination of L-asparagine to L-aspartic acid and ammonia is catalyzed by L-asparaginases (L-asparagine amino hydrolase). The enzyme L-asparaginase is widely distributed in nature from different living organis...
Effect of house type on growth performance, litter quality and incidence of foot lesions in broiler chickens reared in varying stocking density
Genetic analysis on some yield traits of pea (Pisum sativum L.) crosses
The trial was carried during 2011-2013 on the second experimental field of the Institute of Forage Crops – Pleven, Bulgaria. Eight generations (P1, P2, F1, F2, RC1 and each reciprocal generation) from a cross betwe...
What is known about Cyanoprokaryota and the algal blooms along the Bulgarian Black Sea coast: an overview
This article presents a summary of the research related to the taxonomic composition, algal blooms and toxic potential of representatives from Cyanoprokaryota (Cyanobacteria, Cyanophyta) in the coastal waters of th...