Response of photosynthetic apparatus in Arabidopsis thaliana L. mutant deficient in phytochrome A and B to UV-B

Kreslavski, Vladimir D.; Шмарев, А. Н.; Lyubimov, V. Yu.; Semenova, Galina; Zharmukhamedov, Sergey K.; Ширшикова, Г. Н.; Khudyakova, Alexandra; Allakhverdiev, Suleyman I.

doi:10.1007/s11099-017-0754-8

Cited by 11 publications

(4 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An increase in unsaturated/saturated fatty acids is a prerequisite for membrane rigidity (Hugly et al 1989;Kramer et al 1991). UVB irradiation enhanced total unsaturated fatty acids enhanced by 112% in our experiments but reduced saturated fatty acids by 6.24%.…”

Section: Metabolites Related To Osmotic Regulation Under Uvb Irradiationmentioning

confidence: 43%

See 1 more Smart Citation

Metabolic programming of Rhododendron chrysanthum leaves following exposure to UVB irradiation

Zhou

Lyu

Sun³

et al. 2021

Functional Plant Biol.

View full text Add to dashboard Cite

Excessive UVB reaching the earth is a cause for concern. To decipher the mechanism concerning UVB resistance of plants, we studied the effects of UVB radiation on photosynthesis and metabolic profiling of Rhododendron chrysanthum Pall. by applying 2.3Wm−2 of UVB radiation for 2days. Results showed that maximum quantum yield of PSII (Fv/Fm) and effective quantum yield of PSII (φPSII) decreased by 7.95% and 8.36%, respectively, following UVB exposure. Twenty five known metabolites were identified as most important by two different methods, including univariate and multivariate statistical analyses. Treatment of R. chrysanthum with UVB increased the abundance of flavonoids, organic acids, and amino acids by 62%, 22%, and 5%, respectively. UVB irradiation also induced about 1.18-fold increase in 11 top-ranked metabolites identified: five organic acids (d-2,3-dihydroxypropanoic acid, maleic acid, glyceric acid, fumaric acid and suberic acid), four amino acids (l-norleucine, 3-oxoalanine, l-serine and glycine), and two fatty acids (pelargonic acid and myristoleic acid). In addition, UVB irradiation increased the intermediate products of arginine biosynthesis and the TCA cycle. Taken together, the accumulation of flavonoids, organic acids, amino acids and fatty acids, accompanied by enhancement of TCA cycle and arginine biosynthesis, may protect R. chrysanthum plants against UVB deleterious effects.

show abstract

Section: Metabolites Related To Osmotic Regulation Under Uvb Irradiationmentioning

confidence: 43%

“…Several studies demonstrated that UVB could affect corre sponding molecules either directly or by ROS generated during UVB irradiation (Kreslavski et al 2018). To cope with UVB irradiation, the plant must develop a specific tolerance mechanism.…”

Section: Metabolites Related To Enzyme Activity Under Uvb Irradiationmentioning

confidence: 99%

Metabolic programming of Rhododendron chrysanthum leaves following exposure to UVB irradiation

Zhou

Lyu

Sun³

et al. 2021

Functional Plant Biol.

View full text Add to dashboard Cite

show abstract

“…The accumulation of leaf pigments primarily depends on the state of photoreceptors such as cryptochromes (CRYs) and PHYs [12]. Thus, a noticeably lower content of carotenoids and UV-absorbing pigments was detected in mutant Arabidopsis thaliana plants than in wild type (WT) plants grown on HIBL supplemented with CRY1 deficiency, and a decrease in the activity of a number of antioxidant enzymes that protect the plant from oxidative stress was also detected [13].…”

Section: Introductionmentioning

confidence: 99%

The Role of Pigments and Cryptochrome 1 in the Adaptation of Solanum lycopersicum Photosynthetic Apparatus to High-Intensity Blue Light

Ashikhmin,

Pashkovskiy,

Kosobryukhov

et al. 2024

Antioxidants

View full text Add to dashboard Cite

The effects of high-intensity blue light (HIBL, 500/1000 µmol m−2s−1, 450 nm) on Solanum lycopersicum mutants with high pigment (hp) and low pigment (lp) levels and cryptochrome 1 (cry1) deficiency on photosynthesis, chlorophylls, phenols, anthocyanins, nonenzymatic antioxidant activity, carotenoid composition, and the expression of light-dependent genes were investigated. The plants, grown under white light for 42 days, were exposed to HIBL for 72 h. The hp mutant quickly adapted to 500 µmol m−2s−1 HIBL, exhibiting enhanced photosynthesis, increased anthocyanin and carotenoids (beta-carotene, zeaxanthin), and increased expression of key genes involved in pigment biosynthesis (PSY1, PAL1, CHS, ANS) and PSII proteins along with an increase in nonenzymatic antioxidant activity. At 1000 µmol m−2s−1 HIBL, the lp mutant showed the highest photosynthetic activity, enhanced expression of genes associated with PSII external proteins (psbO, psbP, psbQ), and increased in neoxanthin content. This mutant demonstrated greater resistance at the higher HIBL, demonstrating increased stomatal conductance and photosynthesis rate. The cry1 mutant exhibited the highest non-photochemical quenching (NPQ) but had the lowest pigment contents and decreased photosynthetic rate and PSII activity, highlighting the critical role of CRY1 in adaptation to HIBL. The hp and lp mutants use distinct adaptation strategies, which are significantly hindered by the cry1 mutation. The pigment content appears to be crucial for adaptation at moderate HIBL doses, while CRY1 content and stomatal activity become more critical at higher doses.

show abstract

“…Under the induction of red or white light, the stability of PHYA transcription products of monocotyledonous plants is reduced; the transcription products of dicotyledonous plants will not be significantly reduced under short-term red light irradiation, but continuous white light irradiation can reduce it. The expression levels of PHYB and PHYC in monocotyledons and dicotyledons are not affected by light; PHYA mainly plays a role in the high irradiance reaction under far red light and extremely low radiation, while PHYB and PHYC play a role in the low radiation and the transition between red light and far red light (Gu et al 1997 ; Kong et al 2018 ; Kreslavski et al 2018 ; Park et al 2018 ). In addition, photosynthetic pigments, chlorophyll and carotenoids in plants can also be used as photosensitive signals to absorb most of the visible light, although green light is reflected and converted (Franklin et al 2005 ).…”

Section: Introductionmentioning

confidence: 99%

Review: the effect of light on the key pigment compounds of photosensitive etiolated tea plant

2021

View full text Add to dashboard Cite

Background Light is the ultimate energy source of plant photosynthesis, which has an important impact on the growth, development, physiology and biochemistry of tea plant. Photosensitive etiolated tea plant belongs to a kind of colored leaf plant, which is a physiological response to light intensity. Compared with conventional green bud and leaf of tea plant, the accumulation of pigment compounds (chlorophyll and carotenoids, etc.) closely related to a series of reactions of photosynthesis in photosensitive etiolated tea plant is reduced, resulting in the difference of leaf color of tea. This specific tea resource has high application value, among which high amino acid is one of its advantages. It can be used to process high-quality green tea with delicious taste and attractive aroma, which has been widely attention. The mechanism of the color presentation of the etiolated mutant tea leaves has been given a high topic and attention, especially, what changes have taken place in the pigment compounds of tea leaves caused by light, which makes the leaves so yellow. At present, there have been a lot of research and reports. Purpose of the review We describe the metabolism and differential accumulation of key pigment compounds affecting the leaf color of photosensitive etiolated tea that are triggered by light, and discuss the different metabolism and key regulatory sites of these pigments in different light environments in order to understand the “discoloration” matrix and mechanism of etiolated tea resources, answer the scientific question between leaf color and light. It provides an important strategy for artificial intervention of discoloration of colored tea plant. Conclusion The differential accumulation of pigment compounds in tea plant can be induced phytochrome in response to the change of light signal. The synthesis of chlorophyll in photoetiolated tea plants is hindered by strong light, among which, the sites regulated by coproporphyrinogen III oxidase and chlorophyllide a oxidase is sensitive to light and can be inhibited by strong light, resulting in the aggravation of leaf etiolation. The phenomenon can be disappeared or weakened by shading or reducing light intensity, and the leaf color is greenish, but the increase of chlorophyll-b accumulation is more than that of chlorophyll-a. The synthesis of carotenoids is inhibited strong light, and high the accumulation of carotenoids is reduced by shading. Most of the genes regulating carotenoids are up-regulated by moderate shading and down-regulated by excessive shading. Therefore, the accumulation of these two types of pigments in photosensitive etiolated tea plants is closely related to the light environment, and the leaf color phenotype shape of photosensitive etiolated tea plants can be changed by different light conditions, which provides an important strategy for the production and management of tea plant.

show abstract

Response of photosynthetic apparatus in Arabidopsis thaliana L. mutant deficient in phytochrome A and B to UV-B

Cited by 11 publications

References 58 publications

Metabolic programming of Rhododendron chrysanthum leaves following exposure to UVB irradiation

Metabolic programming of Rhododendron chrysanthum leaves following exposure to UVB irradiation

The Role of Pigments and Cryptochrome 1 in the Adaptation of Solanum lycopersicum Photosynthetic Apparatus to High-Intensity Blue Light

Review: the effect of light on the key pigment compounds of photosensitive etiolated tea plant

Contact Info

Product

Resources

About