PMID- 38055155
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231209
IS  - 2731-0450 (Electronic)
IS  - 2731-0450 (Linking)
VI  - 3
IP  - 1
DP  - 2023 Dec 6
TI  - Foliar application of strigolactones improves the desiccation tolerance, grain 
      yield and water use efficiency in dryland wheat through modulation of 
      non-hydraulic root signals and antioxidant defense.
PG  - 54
LID - 10.1007/s44154-023-00127-9 [doi]
LID - 54
AB  - Non-hydraulic root signals (nHRS) are affirmed as a unique positive response to 
      soil drying, and play a crucial role in regulating water use efficiency and yield 
      formation in dryland wheat production. Strigolactones (SLs) can enhance plant 
      drought adaptability. However, the question of whether strigolactones enhance 
      grain yield and water use efficiency by regulating nHRS and antioxidant defense 
      systems in dryland wheat remains unanswered. In this study, pot experiments were 
      conducted to investigate the effects of strigolactones on nHRS, antioxidant 
      defense system, and grain yield and water use efficiency in dryland wheat. The 
      results showed that external application of SLs increased drought-induced 
      abscisic acid (ABA) accumulation and activated an earlier trigger of nHRS at 
      73.4% field capacity (FC), compared to 68.5% FC in the control group (CK). This 
      phenomenon was mechanically associated with the physiological mediation of SLs. 
      The application of SLs significantly enhanced the activities of leaf antioxidant 
      enzymes, reduced ROS production, and mitigated oxidative damage to lipid 
      membrane. Additionally, root biomass, root length density, and root to shoot 
      ratio were increased under strigolactone treatment. Furthermore, exogenous 
      application of SLs significantly increased grain yield by 34.9% under moderate 
      drought stress. Water use efficiency was also increased by 21.5% and 33.3% under 
      moderate and severe drought conditions respectively, compared to the control 
      group (CK). The results suggested that the application of strigolactones 
      triggered earlier drought-sensing mechanism and improved the antioxidant defense 
      ability, thus enhancing grain yield and water use efficiency in dryland wheat 
      production.
CI  - (c) 2023. The Author(s).
FAU - Guo, Sha
AU  - Guo S
AD  - College of Forestry, Northwest A&F University, Shaanxi, 712000, Yangling, China.
AD  - College of Soil and Water Conservation Science and Engineering, Northwest A&F 
      University, Shaanxi, 712000, Yangling, China.
FAU - Wei, Xiaofei
AU  - Wei X
AD  - College of Forestry, Northwest A&F University, Shaanxi, 712000, Yangling, China.
AD  - College of Soil and Water Conservation Science and Engineering, Northwest A&F 
      University, Shaanxi, 712000, Yangling, China.
FAU - Ma, Baoluo
AU  - Ma B
AD  - Ottawa Research and Development Centre (ORDC), Agriculture and Agri-Food Canada, 
      Ottawa, ON, K1A0C6, Canada.
FAU - Ma, Yongqing
AU  - Ma Y
AD  - College of Soil and Water Conservation Science and Engineering, Northwest A&F 
      University, Shaanxi, 712000, Yangling, China.
FAU - Yu, Zihan
AU  - Yu Z
AD  - College of Natural Resources and Environment, Northwest A&F University, Shaanxi, 
      712000, Yangling, China.
FAU - Li, Pufang
AU  - Li P
AUID- ORCID: 0000-0003-1700-1926
AD  - College of Forestry, Northwest A&F University, Shaanxi, 712000, Yangling, China. 
      lipufang06@163.com.
AD  - College of Soil and Water Conservation Science and Engineering, Northwest A&F 
      University, Shaanxi, 712000, Yangling, China. lipufang06@163.com.
LA  - eng
GR  - 31901123/the National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20231206
PL  - Switzerland
TA  - Stress Biol
JT  - Stress biology
JID - 9918284258406676
PMC - PMC10700292
OTO - NOTNLM
OT  - Antioxidant defense system
OT  - Grain yield
OT  - Non-hydraulic root signals
OT  - Strigolactones
OT  - Water use efficiency
COIS- The authors declare that they have no competing interests.
EDAT- 2023/12/06 12:42
MHDA- 2023/12/06 12:43
PMCR- 2023/12/06
CRDT- 2023/12/06 11:12
PHST- 2023/07/20 00:00 [received]
PHST- 2023/10/22 00:00 [accepted]
PHST- 2023/12/06 12:43 [medline]
PHST- 2023/12/06 12:42 [pubmed]
PHST- 2023/12/06 11:12 [entrez]
PHST- 2023/12/06 00:00 [pmc-release]
AID - 10.1007/s44154-023-00127-9 [pii]
AID - 127 [pii]
AID - 10.1007/s44154-023-00127-9 [doi]
PST - epublish
SO  - Stress Biol. 2023 Dec 6;3(1):54. doi: 10.1007/s44154-023-00127-9.