Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Sporulation modifies the photosynthetic activity of sporotrophophyll leaves of Platycerium bifurcatum
View through Europeana Collections
Platycerium bifurcatum is an epiphytic fern, occurring mainly in the forests of Australia and New Guinea. The location and spatial structure of its sporangia makes this fern a unique research model for physiological experiments. Our research aimed to determine changes in photosynthesis in the sporophilic and trophophilic parts of P. bifurcatum leaves during spore tying and maturation. For this purpose, the JIP-test and gas-exchange measurements of leaves were performed. In the study, we showed that changes typical of plant responses to stress factors also happened at critical periods in plant ontogenesis (e.g., in the generative phase) not related to environmental stress. Measurements of chlorophyll a fluorescence kinetics, the intensities of net/gross photosynthetic rate, and the respiration of sporotrophophilic leaves indicated that the intensities of these processes were related to the location of spores and to the stage of sporulation. The results are the first to describe the photosynthesis process and dark respiration of leaves during sporulation in ferns.
Title: Sporulation modifies the photosynthetic activity of sporotrophophyll leaves of Platycerium bifurcatum
Description:
Platycerium bifurcatum is an epiphytic fern, occurring mainly in the forests of Australia and New Guinea.
The location and spatial structure of its sporangia makes this fern a unique research model for physiological experiments.
Our research aimed to determine changes in photosynthesis in the sporophilic and trophophilic parts of P.
bifurcatum leaves during spore tying and maturation.
For this purpose, the JIP-test and gas-exchange measurements of leaves were performed.
In the study, we showed that changes typical of plant responses to stress factors also happened at critical periods in plant ontogenesis (e.
g.
, in the generative phase) not related to environmental stress.
Measurements of chlorophyll a fluorescence kinetics, the intensities of net/gross photosynthetic rate, and the respiration of sporotrophophilic leaves indicated that the intensities of these processes were related to the location of spores and to the stage of sporulation.
The results are the first to describe the photosynthesis process and dark respiration of leaves during sporulation in ferns.
Related Results
Isolation and characterization of fusidic acid-resistant, sporulation-defective mutants of Bacillus subtilis
Isolation and characterization of fusidic acid-resistant, sporulation-defective mutants of Bacillus subtilis
Fusidic acid-resistant, sporulation-defective mutants were isolated from Bacillus subtilis 168 thy trp. About two-thirds of the fusidic acid-resistant (fusr) mutants were defective...
Pharmacognostic Evaluation of Platycerium bifurcatum (Cav.) C. Chr. (Polypodiaceae)
Pharmacognostic Evaluation of Platycerium bifurcatum (Cav.) C. Chr. (Polypodiaceae)
Ethnopharmacological relevance: Platycerium bifurcatum (CAV.) C. Chr., Commonly known as staghorn fern is an epiphytic plant with diverse medicinal uses, such as anti-ulcer remedy,...
Evaluating the Science to Inform the Physical Activity Guidelines for Americans Midcourse Report
Evaluating the Science to Inform the Physical Activity Guidelines for Americans Midcourse Report
Abstract
The Physical Activity Guidelines for Americans (Guidelines) advises older adults to be as active as possible. Yet, despite the well documented benefits of physical a...
Sociality in the terrestrial epiphytic fern
Platycerium bifurcatum
Sociality in the terrestrial epiphytic fern
Platycerium bifurcatum
<p><strong>Throughout the history of life on Earth, major evolutionary transitions have led to greater levels of complexity and organization. One of the most intricate ...
Translation in Bacillus subtilis is spatially and temporally coordinated during sporulation
Translation in Bacillus subtilis is spatially and temporally coordinated during sporulation
AbstractTranslational control during the intricate process of sporulation inBacillus subtilisas a response to nutrient limitation is still underexplored. Here, we employed a compre...
Genome-wide comparative analysis of photosynthetic enzymatic genes provides novel insights into foxtail millet and other cereals
Genome-wide comparative analysis of photosynthetic enzymatic genes provides novel insights into foxtail millet and other cereals
C4 crops have more efficient photosynthetic pathways that enable their higher photosynthetic capacities as well as nitrogen and water use efficiencies than C3 crops. Previous resea...
Mean labor time of a leaf
Mean labor time of a leaf
The mean labor time of a leaf (hour/day−1) is defined as the ratio of mean daily photosynthetic rate of a leaf (Da; mol m−2 day−1) to the mean value of potential hourly p...
‘Miguang’ Grape Response to Pergola and Single-Curtain Training Systems
‘Miguang’ Grape Response to Pergola and Single-Curtain Training Systems
Background and Aims: Grapevine shoot growth and light utilization are typically adjusted through the use of canopy management strategies that are adapted to the local climate. In t...