Difference between revisions of "Photosynthesis"

Latest revision as of 09:23, 11 September 2021

high-resolution terminology - matching measurements at high-resolution

Photosynthesis

Description

Photosynthesis is the process that converts light energy into chemical energy which is subsequently transformed to the physiological energy demand. Photosynthesis has a light-dependent and light-independent (dark) phase. In plants, algae, and cynobacteria, light energy is absorbed during the light phase by the pigment chlorophyll and used to split water and generate adenosine triphosphate (ATP) and reducing power - nicotinamide adenine dinucleotide phosphate (NADPH), with the net production of O₂ as a waste product. During the dark phase ATP and NADPH are used to synthesize carbohydrates from CO₂ through the metabolic pathway called Calvin-Benson cycle. Oxygenic photosynthesis is responsible for producing and maintaining the oxygen concentration of the Earth’s atmosphere. In bacteria such as cyanobacteria, photosynthesis involves the plasma membrane and the cytoplasm. In eukaryotic cells (plants and algae), photosynthesis takes place in the chloroplasts.

Abbreviation: PS

Reference:

Stern K (2003) Introductory plant biology. McGraw-Hill, New York. ISBN 978-0-07-290941-8.

Photosynthesis general equation: 6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

PhotoBiology in the context of the NextGen-O2k project

In the NextGen-O2k project we developed the PhotoBiology Module (PB-Module). Similar to the O2k-Fluo Smart-Module, the PB-Module contains a light source (blue, red, or white) allowing high-resolution monitoring of production and consumption of O₂.

Went N, Di Marcello M, Gnaiger E (2021) Oxygen dependence of photosynthesis and light-enhanced dark respiration studied by High-Resolution PhotoRespirometry. MitoFit Preprints 2021.5. doi:10.26124/mitofit:2021-0005

Bioblast links: PhotoBiology and plant physiology - >>>>>>> - Click on [Expand] or [Collapse] - >>>>>>>

PhotoBiology: photosynthesis

» PhotoBiology

» Photosynthesis

Plant physiology: respiration

» Photorespiration

» Chlororespiration

» Light-enhanced dark respiration

NextGen-O2k and PB-Module

» NextGen-O2k

» PB-Module

» PB-Sensor

Labels:

MitoPedia:NextGen-O2k

@@ Line 1: / Line 1: @@
 {{MitoPedia
 |abbr=PS
-|description='''Photosynthesis''' is the process used by plants and other organisms that converts the light (mostly solar) energy into chemical energy which is subsequently released to fuels organisms’s activities. It has two phases: the light-dependent phase and the light-independent (dark) phase. In plants, algae and cynobacteria, during the light-dependent phase, the light energy is absorbed by the pigment called Chlorophyll and used to split water and generate short-term storages of chemical energy, adenosine triphosphate (ATP), and reductant power, nicotinamide adenine dinucleotide phosphate (NADPH), with the net production of oxygen gas as a waste product. And during the light-independent phase these chemical energy and reductant power are used to synthesize organic matter from the atmospheric CO<sub>2</sub> in the form of carbohydrates or sugars through a metabolic pathway called Calvin cycle. The whole process is what is called oxygenic photosynthesis and it is the most common one used by living organisms, being responsible of producing and maintaining the oxygen concentration of the Earth’s atmosphere. While in bacteria such as the cyanobacteria the photosynthesis involves the plasma membrane and the cytoplasm, in Eukaryotic cells (plants and algae) the photosynthesis takes place inside organelles called chloroplasts.                      |info=::::
+|description='''Photosynthesis''' is the process that converts light energy into chemical energy which is subsequently transformed to the physiological energy demand. Photosynthesis has a light-dependent and light-independent (dark) phase. In plants, algae, and cynobacteria, light energy is absorbed during the light phase by the pigment chlorophyll and used to split water and generate adenosine triphosphate (ATP) and reducing power - nicotinamide adenine dinucleotide phosphate (NADPH), with the net production of O<sub>2</sub> as a waste product. During the dark phase ATP and NADPH are used to synthesize carbohydrates from CO<sub>2</sub> through the metabolic pathway called Calvin-Benson cycle. Oxygenic photosynthesis is responsible for producing and maintaining the oxygen concentration of the Earth’s atmosphere. In bacteria such as cyanobacteria, photosynthesis involves the plasma membrane and the cytoplasm. In eukaryotic cells (plants and algae), photosynthesis takes place in the chloroplasts.
+|info=::::Stern K (2003) Introductory plant biology. McGraw-Hill, New York. ISBN 978-0-07-290941-8.
+}}
+ '''Photosynthesis general equation:''' 6 CO<sub>2</sub> + 6 H<sub>2</sub>O → C<sub>6</sub>H<sub>12</sub>O<sub>6</sub> + 6 O<sub>2</sub>
+== [[PhotoBiology]] in the context of the [[NextGen-O2k]] project ==
+:::: In the [[NextGen-O2k]] project we developed the PhotoBiology Module ([[PB-Module]]). Similar to the [[O2k-Fluo Smart-Module]], the [[PB-Module]] contains a light source (blue, red, or white) allowing high-resolution monitoring of production and consumption of O<sub>2</sub>.
+:::* Went N, Di Marcello M, Gnaiger E (2021) Oxygen dependence of photosynthesis and light-enhanced dark respiration studied by High-Resolution PhotoRespirometry. MitoFit Preprints 2021.5. [[doi:10.26124/mitofit:2021-0005]]
+{{NextGen-O2k H2020-support}}
+{{Template:Keywords: PhotoBiology and plant physiology}}
+{{Labeling
+|additional=MitoPedia:NextGen-O2k
 }}
-== Photosynthesis as part of [[PhotoBiology]] in the context of the [[NextGen-O2k]] project ==
-In the [[NextGen-O2k]] project we are working on developing the PB-Module for the new series of our [[Startup_O2k-Respirometer| O2k-Respirometer]], the NextGen-O2k. Similar to our current [[https://wiki.oroboros.at/index.php/O2k-Fluo_Smart-Module O2k-Smart Fluo-Module]], the [[PB-Module]] will provide with an external source of light, in the range of the Blue or Red wavelenghts, allowing to carry out experiments evaluating the production/consumption of O<sub>2</sub> in the presence of light.
- Communicated by [[Huete-Ortega M]] 2020-05-29