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PHOTOTROPHIC PROCESSES
Descriptors Found:
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DeCS
Descriptor
English
:
Phototrophic Processes
Descriptor
Spanish
:
Procesos Fototróficos
Descriptor
Portuguese
:
Processos Fototróficos
Tree Number:
G02.111.087.678
G02.149.115.678
G03.495.795
Definition
English
:
Processes by which phototrophic organisms use
sunlight
as their primary
energy
source. Contrasts with chemotrophic processes which do not depend on
light
and function in deriving
energy
from exogenous
chemical sources
. Photoautotrophy (or photolithotrophy) is the ability to use
sunlight
as
energy
to fix inorganic
nutrients
to be used for other organic requirements. Photoautotrophs include all GREEN
PLANTS
; GREEN ALGAE;
CYANOBACTERIA
; and green and PURPLE
SULFUR BACTERIA
. Photoheterotrophs or photoorganotrophs require a
supply
of organic
nutrients
for their organic requirements but use
sunlight
as their primary
energy
source; examples include certain PURPLE NONSULFUR
BACTERIA
. Depending on environmental conditions some organisms can switch between different nutritional modes (AUTOTROPHY; HETEROTROPHY; chemotrophy; or phototrophy) to utilize different sources to meet their
nutrients
and
energy
requirements.
Indexing Annotation
English
:
distinguish from
PHOTOTROPISM
See Related
English
:
Autotrophic Processes
Chemoautotrophic Growth
Heterotrophic Processes
Nutrition Processes
History Note
English
:
2007
Allowable Qualifiers
English
:
DE
drug effects
GE
genetics
IM
immunology
PH
physiology
RE
radiation effects
Record Number:
52486
Unique Identifier:
D052817
Occurrence in VHL
:
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DeCS
CID-10
SciELO
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