PMID- 38282004
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240131
IS  - 2730-9401 (Electronic)
IS  - 2730-9401 (Linking)
VI  - 4
IP  - 1
DP  - 2024 Jan 29
TI  - RcMYB8 enhances salt and drought tolerance in rose (Rosa chinensis) by modulating 
      RcPR5/1 and RcP5CS1.
PG  - 3
LID - 10.1186/s43897-024-00080-9 [doi]
LID - 3
AB  - Plant Myeloblastosis (MYB) proteins function crucially roles upon variegated 
      abiotic stresses. Nonetheless, their effects and mechanisms in rose (Rosa 
      chinensis) are not fully clarified. In this study, we characterized the effects 
      of rose RcMYB8 under salt and drought tolerances. For induction of the RcMYB8 
      expression, NaCl and drought stress treatment were adopted. Rose plants 
      overexpressing RcMYB8 displayed enhanced tolerance to salinity and drought 
      stress, while silencing RcMYB8 resulted in decreased tolerance, as evidenced by 
      lowered intra-leaf electrolyte leakage and callose deposition, as well as 
      photosynthetic sustainment under stressed conditions. Here, we further show that 
      RcMYB8 binds similarly to the promoters of RcPR5/1 and RcP5C51 in vivo and in 
      vitro. Inhibiting RcP5CS1 by virus-induced gene silencing led to decreased 
      drought tolerance through the reactive oxygen species (ROS) homeostatic 
      regulation. RcP5CS1-silenced plants showed an increase in ion leakage and reduce 
      of proline content, together with the content of malondialdehyde (MDA) increased, 
      lowered activities of Catalase (CAT), peroxidase (POD) and superoxide dismutase 
      (SOD). Our study highlights the transcriptional modulator role of RcMYB8 in 
      drought and salinity tolerances, which bridges RcPR5/1 and RcP5CS1 by promoting 
      ROS scavenging. Besides, it is probably applicable to the rose plant engineering 
      for enhancing their abiotic stress tolerances.
CI  - (c) 2024. The Author(s).
FAU - Zhang, Yichang
AU  - Zhang Y
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Yu, Shuang
AU  - Yu S
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Niu, Pengfei
AU  - Niu P
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Su, Lin
AU  - Su L
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Jiao, Xuecheng
AU  - Jiao X
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Sui, Xiuyu
AU  - Sui X
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Shi, Yaru
AU  - Shi Y
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Liu, Boda
AU  - Liu B
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Lu, Wanpei
AU  - Lu W
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China.
FAU - Zhu, Hong
AU  - Zhu H
AD  - College of Agronomy, Qingdao Agricultural University, Qingdao, 266109, Shandong, 
      China. zhuhong@qau.edu.cn.
FAU - Jiang, Xinqiang
AU  - Jiang X
AUID- ORCID: 0000-0003-0727-3354
AD  - College of Landscape Architecture and Forestry, Qingdao Agricultural University, 
      Qingdao, 266109, Shandong, China. jiangxinqiang8@163.com.
LA  - eng
GR  - ZR2023MC014/National Natural Science Foundation of China-Shandong Joint Fund for 
      Marine Science Research Centers/
GR  - 2018YFD1000400/National Key Research and Development Program/
GR  - QNYCX22045/Innovative Program for Graduate Students of Qingdao Agricultural 
      University/
GR  - QNYCX22089/Innovative Program for Graduate Students of Qingdao Agricultural 
      University/
GR  - QNYCX23025/Innovative Program for Graduate Students of Qingdao Agricultural 
      University/
PT  - Journal Article
DEP - 20240129
PL  - England
TA  - Mol Hortic
JT  - Molecular horticulture
JID - 9918646053206676
PMC - PMC10823735
OTO - NOTNLM
OT  - Drought tolerance
OT  - RcMYB8
OT  - RcP5CS1
OT  - RcPR5/1
OT  - Rose
OT  - Salinity tolerance
COIS- The authors declare that they have no competing interests.
EDAT- 2024/01/29 00:42
MHDA- 2024/01/29 00:43
PMCR- 2024/01/29
CRDT- 2024/01/28 23:37
PHST- 2023/11/25 00:00 [received]
PHST- 2024/01/01 00:00 [accepted]
PHST- 2024/01/29 00:43 [medline]
PHST- 2024/01/29 00:42 [pubmed]
PHST- 2024/01/28 23:37 [entrez]
PHST- 2024/01/29 00:00 [pmc-release]
AID - 10.1186/s43897-024-00080-9 [pii]
AID - 80 [pii]
AID - 10.1186/s43897-024-00080-9 [doi]
PST - epublish
SO  - Mol Hortic. 2024 Jan 29;4(1):3. doi: 10.1186/s43897-024-00080-9.