Growth, physiological, and biochemical responses of Camptotheca acuminata seedlings to different light environments

Ma, Xiaojuan; Song, Lili; Yu, Weiwu; Hu, Yuanyuan; Liu, Yang; Wu, Jiasheng; Ying, Yibin

doi:10.3389/fpls.2015.00321

Cited by 50 publications

(33 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this study, changes in biomass accumulation in plants grown under varying light quality were closely linked to Chl contents and gas-exchange attributes. It has been revealed that RL plays a significant role in the photosynthetic apparatus development and affects morphogenesis by light-induced transformations of phytochrome system (Ma et al 2015a). Light energy absorbed by Chl molecules can undergo three fates: (1) used to drive photosynthesis, (2) dissipated as heat (nonphotochemical quenching), or (3) reemitted as Chl fluorescence (Maxwell and Johnson 2000).…”

Section: Discussionmentioning

confidence: 99%

Leaf gas exchange, oxidative stress, and physiological attributes of rapeseed (Brassica napus L.) grown under different light-emitting diodes

Saleem¹,

Rehman²,

Fahad³

et al. 2020

Photosynt.

View full text Add to dashboard Cite

Through its impact on morphogenesis, light is the key environmental factor that alters plant structural development; however, the understanding how light controls plant growth and developmental processes is still poor and needs further research. For this purpose, a Petri dish and pot experiment was conducted to investigate the effects of different LEDs, i.e., white light (WL), red light (RL), blue light (BL), and orange light (OL) on morphology, gas-exchange parameters, and antioxidant capacity of Brassica napus. Compared with WL, RL significantly promoted plant growth and biomass, contents of photosynthetic pigments, and gas-exchange parameters in comparison to BL and OL. However, RL also helped decline malondialdehyde and proline contents and superoxide anion and peroxide production rate. In contrast, BL and OL significantly reduced plant growth and biomass, gas-exchange attributes and increased the activities of superoxide dismutase and peroxidase in Petri dish as well as in pot experiment. These results suggest that red light could improve plant growth in B. napus plants through activating gas-exchange attributes, reduce reactive oxygen species accumulation, and promote antioxidant capacity.

show abstract

Section: Discussionmentioning

confidence: 99%

Leaf gas exchange, oxidative stress, and physiological attributes of rapeseed (Brassica napus L.) grown under different light-emitting diodes

Saleem¹,

Rehman²,

Fahad³

et al. 2020

Photosynt.

View full text Add to dashboard Cite

show abstract

“…Photosynthesis is determined by chlorophyll (Chl) content and the flux of energy in leaves. Plants should adjust Chl (a+b) content and Chl a/b ratio to adapt to certain environmental conditions and optimize photosynthesis under high and low irradiance (Ma et al 2015). Liming (material contains calcium and/or magnesium compounds capable of neutralizing soil acidity) and P fertilization treatments, just as in other silvicultural treatments, in turn, can reduce the high-light stress effects on chloroplast pigments and stimulate photosynthesis in high light plasticity plants (Filstrup andDowning 2017, Lopes et al 2019) after thinning, due to the enhancement of the nutrient uptake of trees and the availability of nutrients in soil, mainly calcium (Ca), magnesium (Mg), and P. On the other hand, under conditions, where light is limited, liming can increase leaf Chl (due to the increase of Mg concentrations in leaves and P addition) in order to favor increased light energy flux and use (Filstrup and Downing 2017).…”

Section: Introductionmentioning

confidence: 99%

Special issue in honour of Prof. Reto J. Strasser - Chlorophyll a fluorescence of Bertholletia excelsa Bonpl. plantations under thinning, liming, and phosphorus fertilization

Costa¹,

Jaquetti²,

Gonçalves³

2020

Photosynt.

View full text Add to dashboard Cite

Phosphorus (P) fertilization and liming can reduce negative effects caused by a sudden increase in light availability after thinning of forest plantations. In this study, immediately after thinning, photochemical performance (quantum yield of PSII and performance index) decreased, however, liming and P fertilization reduced the negative effects caused by thinning and accelerated the recovery of Bertholletia excelsa trees. After thinning, the remaining trees increased J-I phase with the formation of a positive K-band which occurred exclusively in unfertilized (no liming or no P) individuals. Additionally, enhanced effective dissipation (DI0/RC) values (140%) were found in individuals without liming or P after thinning, while plants under liming and P increased DI0/RC values by 47 and 79%, respectively. Photochemical performance of B. excelsa was positively correlated to iron, zinc, and manganese. Thus, P fertilization and liming are recommended for alleviating the stress caused by high irradiance after thinning in B. excelsa plantations.

show abstract

“…Light is considered the most direct environmental factor affecting plant growth and development ( Ma et al, 2015 ; Yamori, 2016 ). Specifically, changes in light wavelengths due to the different properties of light-harvesting pigments can directly affect plant morphological, anatomical, biochemical, and physiological parameters ( Haliapas et al, 2008 ; Fan et al, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Responses of Morphology, Gas Exchange, Photochemical Activity of Photosystem II, and Antioxidant Balance in Cyclocarya paliurus to Light Spectra

et al. 2018

Self Cite

View full text Add to dashboard Cite

Light quality is a critical factor regulating photosynthetic capacity which directly affects the final yield of plants. Cyclocarya paliurus is a multiple function tree species and its leaves are widely used as tea production and ingredient in functional foods in China. However, the effects of varying light quality on photosynthetic process and the photoprotective mechanisms remains unexplored in-depth. In this study, the biomass accumulation, morphology changes, photosynthetic capacity, stomata ultrastructure, pigments content, PSII activity, reactive oxygen species production, antioxidant enzymes, and phenolic content of C. paliurus plants under different light-emitting diodes (LED) light treatments were investigated to test a hypothesis that the difference in photosynthetic efficiency of C. paliurus plants under differential light quality is related to the degree of photoinhibition and the activation of photoprotection. We found that C. paliurus plants performed better under the treatments of WL (white light, 445 and 560 nm) and BL (blue light, 456 nm) than the treatment of GL (green light, 514 nm) and RL (red light, 653 nm). The better performances were characterized by higher values of photosynthetic capacity, total biomass, pigments content, specific leaf mass per area, seeding height increment, leaf thickness and palisade length. In contrast, plants under the treatments of GL and RL suffered significant photoinhibition but effectively developed photoprotective mechanisms. Results of this study provide not only some insights of the response mechanisms of plant photosynthesis to light quality but also a scientific basis for improving the cultivation of C. paliurus plantations.

show abstract

Growth, physiological, and biochemical responses of Camptotheca acuminata seedlings to different light environments

Cited by 50 publications

References 40 publications

Leaf gas exchange, oxidative stress, and physiological attributes of rapeseed (Brassica napus L.) grown under different light-emitting diodes

Leaf gas exchange, oxidative stress, and physiological attributes of rapeseed (Brassica napus L.) grown under different light-emitting diodes

Special issue in honour of Prof. Reto J. Strasser - Chlorophyll a fluorescence of Bertholletia excelsa Bonpl. plantations under thinning, liming, and phosphorus fertilization

Responses of Morphology, Gas Exchange, Photochemical Activity of Photosystem II, and Antioxidant Balance in Cyclocarya paliurus to Light Spectra

Contact Info

Product

Resources

About