Search on: AUTOTROPHIC PROCESSES 
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Descriptor English:   Autotrophic Processes 
Descriptor Spanish:   Procesos Autotróficos 
Descriptor Portuguese:   Processos Autotróficos 
Synonyms English:   Autotrophic Growth
Autotrophy
Growth, Autotrophic
Growth, Lithotrophic
Lithotrophic Growth
Lithotrophic Processes
Lithotrophy
Processes, Autotrophic
Processes, Lithotrophic  
Tree Number:   G02.111.071
G03.087
Definition English:   The processes by which organisms use simple inorganic substances such as gaseous or dissolved carbon dioxide and inorganic nitrogen as nutrient sources. Contrasts with heterotrophic processes which make use of organic materials as the nutrient supply source. Autotrophs can be either chemoautotrophs (or chemolithotrophs), largely ARCHAEA and BACTERIA, which also use simple inorganic substances for their metabolic energy reguirements; or photoautotrophs (or photolithotrophs), such as PLANTS and CYANOBACTERIA, which derive their energy from light. Depending on environmental conditions some organisms can switch between different nutritional modes (autotrophy; HETEROTROPHY; chemotrophy; or PHOTOTROPHY) to utilize different sources to meet their nutrient and energy requirements. 
See Related English:   Heterotrophic Processes
Nutritional Physiological Phenomena
Phototrophic Processes
 
History Note English:   2007 
Allowable Qualifiers English:  
DE drug effects GE genetics
IM immunology PH physiology
RE radiation effects  
Record Number:   52480 
Unique Identifier:   D052818 

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