Accessory pigmentaccessory pigments, accessory pigment photosynthesis
Accessory pigments are light-absorbing compounds, found in photosynthetic organisms, that work in conjunction with chlorophyll a They include other forms of this pigment, such as chlorophyll b in green algal and higher plant antennae, while other algae may contain chlorophyll c or d In addition, there are many non-chlorophyll accessory pigments, such as carotenoids or phycobiliproteins, which also absorb light and transfer that light energy to photosystem chlorophyll Some of these accessory pigments, in particular the carotenoids, also serve to absorb and dissipate excess light energy, or work as antioxidants The large, physically associated group of chlorophylls and other accessory pigments is sometimes referred to as a pigment bed
The different chlorophyll and non-chlorophyll pigments associated with the photosystems all have different absorption spectra, either because the spectra of the different chlorophyll pigments are modified by their local protein environment or because the accessory pigments have intrinsic structural differences The result is that, in vivo, a composite absorption spectrum of all these pigments is broadened and flattened such that a wider range of visible and infrared radiation is absorbed by plants and algae Most photosynthetic organisms do not absorb green light well, thus most remaining light under leaf canopies in forests or under water with abundant plankton is green, a spectral effect called the "green window" Organisms such as some cyanobacteria and red algae contain accessory phycobiliproteins that absorb green light reaching these habitats
In aquatic ecosystems, it is likely that the absorption spectrum of water, along with gilvin and tripton dissolved and particulate organic matter, respectively, determines phototrophic niche differentiation The six shoulders in the light absorption of water between wavelengths 400 and 1100 nm correspond to troughs in the collective absorption of at least twenty diverse species of phototrophic bacteria Another effect is due to the overall trend for water to absorb low frequencies, while gilvin and tripton absorb higher ones This is why open ocean appears blue and supports yellow species such as Prochlorococcus, which contains divinyl-chlorophyll a and b Synechococcus, colored red with phycoerythrin, is adapted to coastal bodies, while phycocyanin allows Cyanobacteria to thrive in darker inland waters
- Action spectrum
- ^ McElroy, J Scot; Kopsell, Dean 2009 "Physiological role of carotenoids and other antioxidants in plants and application to turfgrass stress management" Zealand Journal of Crop and Horticultural Science 37 4: 327–33 doi:101080/0114067120099687587 Retrieved June 8, 2018
- ^ Falkowski, Paul; Raven, John October 31, 2013 "2" Aquatic Photosynthesis 2 ed Princeton University Press p 80 ISBN 1400849721 Retrieved June 8, 2018
- ^ Hanelt, Dieter; Wiencke, Christian; Bischof, Kai November 30, 2003 "18" In Larkum, Anthony; Douglas, Susan; Raven, John Photosynthesis in Algae Advances in Photosynthesis and Respiration 14 Springer Science & Business Media p 417 doi:101007/978-94-007-1038-2 ISBN 0792363337 ISSN 1572-0233 Retrieved June 8, 2018
- ^ M Stomp; J Huisman; LJ Stal; HC Matthijs August 2007 "Colorful niches of phototrophic microorganisms shaped by vibrations of the water molecule" Isme J 1 4: 271–282 doi:101038/ismej200759 PMID 18043638
accessory pigment definition biology, accessory pigment in algae, accessory pigment photosynthesis, accessory pigment plant, accessory pigments, accessory pigments found in chloroplasts, accessory pigments function, accessory pigments in chloroplast, accessory pigments of alexandrium catenella, accessory pigments photosynthesis
Accessory pigment Information about
Accessory pigment viewing the topic.
There are excerpts from wikipedia on this article and video
Our site has a system which serves search engine function.
You can search all data in our system with above button which written "What did you look for? "
Welcome to our simple, stylish and fast search engine system.
We have prepared this method why you can reach most accurate and most up to date knowladge. The search engine that developed for you transmits you to the latest and exact information with its basic and quick system.
You can find nearly everything data which found from internet with this system.