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Changes in photosynthesis and carotenoid composition of pepper (Capsicum annuum L.) in response to low-light stress and low temperature combined with low-light stress
- Source :
- Photosynthetica, Vol 58, Iss 1, Pp 125-136 (2020)
- Publication Year :
- 2020
- Publisher :
- Institute of Experimental Botany, 2020.
-
Abstract
- Light and temperature are two major factors for plant growth. Carotenoids are important photoprotective and light-harvesting pigments in photosynthetic organs. Therefore, this study explored photosynthesis and carotenoid-related metabolism under control (CK), low-light (L), and low-temperature and low-light (LL) conditions by using the pepper (Capsicum annuum L.) varieties Longjiao 5 and Hangjiao 4. We found the increased inhibition of plant growth and photosynthetic capacity under both L and LL stress. Meanwhile, carotenoid-related metabolic compounds accumulated in pepper showed different responses to the two stresses. Significantly, zeaxanthin contents were 6.69-8.88 times higher under LL than that of CK, α-carotene contents were 0.9-2.1 times higher under L than that of CK, which may enhance the tolerance to LL and L. Our findings provide a foundation for further research on the molecular mechanism of carotenoid functions regarding L and LL tolerance by regulating photosynthesis.
- Subjects :
- 0106 biological sciences
Physiology
Plant Science
Photosynthesis
01 natural sciences
chemistry.chemical_compound
Pigment
lcsh:Botany
Pepper
Carotenoid
Chlorophyll fluorescence
chemistry.chemical_classification
chlorophyll fluorescence
04 agricultural and veterinary sciences
Metabolism
Photosynthetic capacity
lcsh:QK1-989
Zeaxanthin
Horticulture
chemistry
pigment content
visual_art
040103 agronomy & agriculture
visual_art.visual_art_medium
0401 agriculture, forestry, and fisheries
chilling injury index
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15739058 and 03003604
- Volume :
- 58
- Database :
- OpenAIRE
- Journal :
- Photosynthetica
- Accession number :
- edsair.doi.dedup.....b99ba19a24e009cf0b941a54563aea4a