Regulatory Mechanism of Exogenous ABA on Gibberellin Signaling and Antioxidant Responses in Rhododendron chrysanthum Pall. Under UV-B Stress DOI Open Access
Yu Wang, Kun Cao, Hongwei Xu

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(24), P. 13651 - 13651

Published: Dec. 20, 2024

In the present work, we examined effects of exogenous abscisic acid (ABA) under ultraviolet B (UV-B) exposure on gibberellin (GA) production, signaling, and antioxidant-related genes in Rhododendron chrysanthum Pall (R. chrysanthum). Using transcriptomics, acetylated proteomics, widely targeted metabolomics, UV-B stress R. regulatory ABA it were revealed from multiple perspectives. The findings that chrysanthum's antioxidant enzyme differentially expressed by radiation substantially enriched glutathione metabolic pathway. Exogenous supplementation boosted plant resistance to damage further enhanced expression genes. Furthermore, stress, reductase, peroxidase, L-ascorbate peroxidase found be primary enzymes controlled ABA. addition, content was altered due treatments, with greater GA3 GA53. acetylation proteomics study's outcomes disclosed three main oxidative enzymes' modifications dramatically changed during exposure, which may have an impact functions activities. protective photosynthetic system established measuring parameters chlorophyll fluorescence. This research offers a theoretical foundation for development breeding highly resistant varieties as well fresh insights into how hormone levels systems are regulated plants response damage.

Language: Английский

Ellagic acid alleviates aluminum and/or drought stress through morpho-physiochemical adjustments and stress-related gene expression in Zea mays L DOI
Güleray Ağar,

Semra Yagci Ergul,

Merve Yüce

et al.

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(49), P. 59521 - 59532

Published: Oct. 2, 2024

Language: Английский

Citations

1
Strigolactone modulates phenolic acid accumulation and thereby improves tolerance to UV-B stress in Rhododendron chrysanthum Pall. DOI

Xiangru Zhou,

Kun Cao,

Jiao Meng

et al.

Plant Cell Reports, Journal Year: 2024, Volume and Issue: 44(1)

Published: Dec. 6, 2024

Language: Английский

Citations

1
The Molecular Mechanism Regulating Flavonoid Production in Rhododendron chrysanthum Pall. Against UV-B Damage Is Mediated by RcTRP5 DOI Open Access

Fushuai Gong,

Jiao Meng,

Hongwei Xu

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(24), P. 13383 - 13383

Published: Dec. 13, 2024

Elevated levels of reactive oxygen species (ROS) are caused by ultraviolet B radiation (UV-B) stress. In response, plants strengthen their cell membranes, impeding photosynthesis. Additionally, UV-B stress initiates oxidative within the antioxidant defense system and alters secondary metabolism, particularly increasing quantity UV-absorbing compounds such as flavonoids. The v-myb avian myeloblastosis viral oncogene homolog (MYB) transcription factor (TF) may participate in a plant’s response to damage through its regulation flavonoid biosynthesis. this study, we discovered that photosynthetic activity Rhododendron chrysanthum Pall. (R. chrysanthum) decreased when assessing parameters chlorophyll (PSII) fluorescence under Concurrently, enzyme expression increased exposure. A multi-omics data analysis revealed acetylation at K68 site RcTRP5 (telomeric repeat binding protein Pall.) was upregulated. This modification activates system, leading elevated peroxidase (POD), superoxide dismutase (SOD), catalase (CAT). Upregulation is also observed K95 chalcone isomerase (CHI) K178 anthocyanidin synthase (ANS) enzyme. We hypothesize influences modifications CHI ANS biosynthesis, thereby indirectly regulating production. study demonstrates R. can be protected from accumulating could serve useful strategy for enhancing content provide valuable reference research on metabolic mechanisms other substances.

Language: Английский

Citations

1
Regulatory Mechanism of Exogenous ABA on Gibberellin Signaling and Antioxidant Responses in Rhododendron chrysanthum Pall. Under UV-B Stress DOI Open Access
Yu Wang, Kun Cao, Hongwei Xu

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(24), P. 13651 - 13651

Published: Dec. 20, 2024

In the present work, we examined effects of exogenous abscisic acid (ABA) under ultraviolet B (UV-B) exposure on gibberellin (GA) production, signaling, and antioxidant-related genes in Rhododendron chrysanthum Pall (R. chrysanthum). Using transcriptomics, acetylated proteomics, widely targeted metabolomics, UV-B stress R. regulatory ABA it were revealed from multiple perspectives. The findings that chrysanthum's antioxidant enzyme differentially expressed by radiation substantially enriched glutathione metabolic pathway. Exogenous supplementation boosted plant resistance to damage further enhanced expression genes. Furthermore, stress, reductase, peroxidase, L-ascorbate peroxidase found be primary enzymes controlled ABA. addition, content was altered due treatments, with greater GA3 GA53. acetylation proteomics study's outcomes disclosed three main oxidative enzymes' modifications dramatically changed during exposure, which may have an impact functions activities. protective photosynthetic system established measuring parameters chlorophyll fluorescence. This research offers a theoretical foundation for development breeding highly resistant varieties as well fresh insights into how hormone levels systems are regulated plants response damage.

Language: Английский

Citations

0