Anthocyanin accumulation stress response
nounPronunciation: /ˌænθəˈsaɪənɪn əˈkjuːmjuleɪʃən ˈstrɛs rɪˈspɒns/
The upregulation of anthocyanin biosynthesis in plants exposed to multiple environmental stresses, including UV radiation, cold, and nutrient deficiency. This response provides photoprotection and antioxidant defense while signaling stress severity.
Plain English
Plants produce red and purple pigments called anthocyanins when stressed, which helps protect them from light damage and reduce harmful molecules.
Etymology & History
Usage
"Anthocyanin accumulation stress response was evident in purple-tinged leaves of cold-exposed lettuce seedlings."
Style guide notes: Hyphenate 'anthocyanin-accumulation' when used attributively; specify stress type when discussing induction mechanisms.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
Why do plants accumulate anthocyanins under stress?
Anthocyanins absorb excess light energy and neutralize reactive oxygen species, protecting photosynthetic machinery.
What stresses trigger anthocyanin accumulation?
UV radiation, cold temperatures, nutrient deficiency, drought, and high light stress commonly induce this response.
Why Test Candidates on This?
Useful for plant biochemistry and stress physiology assessments, particularly multi-stress interaction studies.
Required skill level: Mid