ASSIMILATORY PIGMENTS CONTENT IN FERN GAMETOPHYTES AND SPOROPHYTES
Journal Title: Current Trends in Natural Sciences - Year 2012, Vol 1, Issue 1
Abstract
Pteridophytes distinguishes from other land plants is that they have independent gametophyte and sporophyte generations. Half fern’s lives are spent in the gametophyte stage, or haplophase, and the other half in the sporophyte stage. Fern gametophytes have no vascular system, like bryophytes, and live on substrate surfaces as small individual plants, but their sporophytes have a vascular system enabling more vertical growth than gametophytes, resulting in a large herbaceous plant form. Many species are able to change the composition of their photosynthetic apparatus to optimize photosynthesis for the light environment in which they are growing. Measuremenst performed at fern gametophytes (Polypodium vulgare, Asplenium trichomanes and Cyptopteris fragilis) obtaines in vitro and in fern sporophytes (ten species) from the natural site showed that content of chlorophylls is both qualitatively and quantitatively similar to that of higher plants Chlorophyll content was much higher in sporophytes, which is in agreement with their higher photosynthetic rates. The highest amount of chlorophyll values was determined to species of Asplenium, and the lower value was in Lycopodium clavatum.
Authors and Affiliations
Monica Popescu
Keywords
Related Articles
- EP ID EP24921
- DOI -
- Views 324
- Downloads 15
THE INVENTORY OF FISH FROM THE NATIONAL PARK CĂLIMANI - DIVERSITY AND DISTRIBUTION
In the Călimani National Park, the inventory of the fish species of community importance, carried out in 2013 through a project from the Sectoral Operational Program for Environment, revealed that there is only one spec...
APPLICATION OF PENALTY ANALYSIS TO INTERPRET JAR DATA – A CASE STUDY ON ORANGE JUICES
Penalty analysis is a graphical technique to reveal the possible penalty paid by the product in terms of reduced overall liking by not being Just About Right (JAR) on a characteristic. Thus consumer affective tests were...
THE ROLE OF BETABLOCKERS IN LOWERING THE RISK OF CHEMOTHERAPY-INDUCED HEART FAILURE IN BREAST CANCER
Anthracyclines and molecular targeted therapy, pharmacologic agents currently used in breast cancer, are potentially cardiotoxic, leading to cardiac dysfunction, and even to overt heart failure. This paper reviews the a...
A FEW BASIC PRINCIPLES CONCERNING THE PRUNING OF ORNAMENTAL TREES FROM CROWN
Research conducted by the author is a review of the major cuts crown formation in ornamental trees. The paper presents different techniques used in modeling tree crown, and some problems which may arise from incorrect...
ARBUSCULAR MYCORRHIZAL FUNGI - AN ESSENTIAL TOOL TO SUSTAINABLE VINEYARD DEVELOPMENT: A REVIEW
Grapevine is one of the most important horticultural perennial crops grown in many countries from worldwide. In this paper, we review the global benefits of arbuscular mycorrhiza application for grapevine production and...