Information om | Engelska ordet PHOTOAUTOTROPHS

Exempel på hur man kan använda PHOTOAUTOTROPHS i en mening

• Most of the well-recognized phototrophs are autotrophic, also known as photoautotrophs, and can fix carbon.
• While the vast majority of rubredoxins are soluble, there exists a membrane-bound rubredoxin, referred to as rubredoxin A, in oxygenic photoautotrophs.
• While some cyanobacteria are capable of photoheterotrophic or even chemoheterotrophic growth, all marine Synechococcus strains appear to be obligate photoautotrophs that are capable of supporting their nitrogen requirements using nitrate, ammonia, or in some cases urea as a sole nitrogen source.
• Diverse metabolisms are found in Gammaproteobacteria; there are both aerobic and anaerobic (obligate or facultative) species, chemolithoautotrophics, chemoorganotrophics, photoautotrophs and heterotrophs.
• However, when porphyrin-based photoautotrophs evolved and started to photosynthesize, which included both the primitive purple bacteria using bacteriochlorophyll and cyanobacteria using chlorophyll, highly reactive dioxygen was released as a byproduct of water splitting and started to accumulate, first in the ocean and then in the atmosphere.
• Though pure culture methods cannot be used to identify unculturable microorganisms and do not support the study of the complex interactions between photoautotrophs and heterotrophs, the use of metagenomics, proteomics, and transcriptomics has helped characterize these unculturable organisms and has provided some insight into molecular mechanisms, microbial organization, and interactions in biofilms.
• In modern classifications, protists are spread across several eukaryotic clades called supergroups, such as Archaeplastida (photoautotrophs that includes land plants), SAR, Obazoa (which includes fungi and animals), Amoebozoa and Excavata.
• Autotrophs are classified as either photoautotrophs (which get energy from the sun, like plants) or chemoautotrophs (which get energy from chemical bonds, like certain bacteria).
• Most of these fossils lack any recognizable heads, mouths or digestive organs, and are thought to have fed via absorptive mechanisms and symbiotic relationships with chemoautotrophs (Chemotroph), photoautotrophs (Phototroph) or osmoautotrophs.
• In contrast, autotrophs may use inorganic materials as a source for both, such as inorganic chemical energy (chemolithotrophs) or light (photoautotrophs).
• Eukaryotic photoautotrophs absorb photonic energy through the photopigment chlorophyll (a porphyrin derivative) in their endosymbiont chloroplasts, while prokaryotic photoautotrophs use chlorophylls and bacteriochlorophylls present in free-floating cytoplasmic thylakoids or, in rare cases, membrane-bound retinal derivatives such as bacteriorhodopsin.

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