Strigolactones are common regulators in induction of stomatal closure <i>in planta</i>

Zhang, Yonghong; Lv, Shuo; Wang, Guodong

doi:10.1080/15592324.2018.1444322

Cited by 63 publications

(47 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interestingly, although Bu et al () confirmed that max2 mutants are more sensitive to drought, they did not observe that the SL‐biosynthetic max1 , max3 , and max4 mutants exhibited drought‐sensitive phenotypes on soil upon withholding water for a period of 10 days when compared with WT. This result does not comply with what reported by C. V. Ha et al () and Y. Zhang et al (). It is possible that this discrepancy in drought‐related attributes can be explained by different growth conditions, seedling age, and different periods of exposure to drought.…”

Section: Implication Of Sls In Plant Responses and Adaptation To Droucontrasting

confidence: 94%

“…The first evidence on the direct involvement of SLs in regulating the acclimatization of plants to drought and ABA‐mediated stomatal closure was reported in Arabidopsis (C. V. Ha et al, ). Specifically, the Arabidopsis SL‐biosynthetic max3 and max4 and the SL‐response max2 mutants were more drought‐susceptible than WT, which was further supported by water deficit‐hypersensitive responses of the Arabidopsis SL‐biosynthetic max1 mutant plants (Y. Zhang et al, ), and the SL‐depleted L. japonicus LjCCD7 ‐silenced and tomato SlCCD7 ‐silenced transgenic plants (Liu et al, ; Visentin et al, ). In addition, C. V. Ha et al () also observed that the leaves of the max2 , max3 , and max4 mutants subjected to dehydration lost more water in comparison with WT leaves.…”

Section: Implication Of Sls In Plant Responses and Adaptation To Droumentioning

confidence: 90%

“…Intriguingly, a recent study in rice reported that the d17/ccd7 mutant plants showed higher ABA accumulation in shoots under drought; however, the authors did neither examine the ABA‐mediated stomatal closure nor the ABA responsiveness of the d17 mutant (Haider et al, ), which would allow us to make a valuable comparison with what was observed in dicot plants, such as Arabidopsis , L. japonicus , and tomato. It is worth mentioning that treatment of broad bean ( Vicia faba ) with GR24 enhanced stomatal closure in a concentration‐dependent manner (Y. Zhang et al, ). Very recently, Lv et al () reported that rac ‐GR24 induced the production of H 2 O 2 and NO that were required for promoting SL‐mediated stomatal closure in Arabidopsis .…”

Section: Implication Of Sls In Plant Responses and Adaptation To Droumentioning

confidence: 99%

“…Thus, an important area of research has emerged to further elucidate the roles of SLs in plant stress adaptation. Because SLs have already been proven to be responsive to drought, salinity, and chilling (Cooper et al, ; C. V. Ha et al, ; W. Li et al, ; Liu et al, ; Visentin et al, ; Y. Zhang et al, ), it would be interesting to investigate how SLs adjust osmotic imbalance and oxidative stress by regulating the formation of compatible solutes and antioxidant components.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

“…These findings collectively provided important clues regarding the potential of SLs in regulating plant responses and adaptation to environmental stresses. Thus, an increasing number of studies have recently focused on the implications of SLs in the adaptation of plants to environmental constraints and have reported many novel findings (Bu et al, ; Cooper et al, ; C. V. Ha et al, ; Liu et al, ; Lv et al, ; Ma et al, ; Ruiz‐Lozano et al, ; Umehara et al, ; Visentin et al, ; Y. Zhang, Lv, & Wang, ). Moreover, the connection of SLs in AM symbiosis‐mediated improvement of physiological responses has also been reported in plants under abiotic stresses, such as high salinity and drought (Aroca et al, ; Ruiz‐Lozano et al, ).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Strigolactones in plant adaptation to abiotic stresses: An emerging avenue of plant research

Mostofa

Nguyen

et al. 2018

Plant Cell & Environment

161

View full text Add to dashboard Cite

Phytohormones play central roles in boosting plant tolerance to environmental stresses, which negatively affect plant productivity and threaten future food security. Strigolactones (SLs), a class of carotenoid-derived phytohormones, were initially discovered as an "ecological signal" for parasitic seed germination and establishment of symbiotic relationship between plants and beneficial microbes. Subsequent characterizations have described their functional roles in various developmental processes, including root development, shoot branching, reproductive development, and leaf senescence. SLs have recently drawn much attention due to their essential roles in the regulation of various physiological and molecular processes during the adaptation of plants to abiotic stresses. Reports suggest that the production of SLs in plants is strictly regulated and dependent on the type of stresses that plants confront at various stages of development. Recently, evidence for crosstalk between SLs and other phytohormones, such as abscisic acid, in responses to abiotic stresses suggests that SLs actively participate within regulatory networks of plant stress adaptation that are governed by phytohormones. Moreover, the prospective roles of SLs in the management of plant growth and development under adverse environmental conditions have been suggested. In this review, we provide a comprehensive discussion pertaining to SL-mediated plant responses and adaptation to abiotic stresses.

show abstract

Section: Implication Of Sls In Plant Responses and Adaptation To Droucontrasting

confidence: 94%

Section: Implication Of Sls In Plant Responses and Adaptation To Droumentioning

confidence: 90%

Section: Implication Of Sls In Plant Responses and Adaptation To Droumentioning

confidence: 99%

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Strigolactones in plant adaptation to abiotic stresses: An emerging avenue of plant research

Mostofa

Nguyen

et al. 2018

Plant Cell & Environment

161

View full text Add to dashboard Cite

show abstract

Differential role of MAX2 and strigolactones in pathogen, ozone, and stomatal responses

et al. 2020

View full text Add to dashboard Cite

Strigolactones are a group of phytohormones that control developmental processes including shoot branching and various plant–environment interactions in plants. We previously showed that the strigolactone perception mutant more axillary branches 2 (max2) has increased susceptibility to plant pathogenic bacteria. Here we show that both strigolactone biosynthesis (max3 and max4) and perception mutants (max2 and dwarf14) are significantly more sensitive to Pseudomonas syringae DC3000. Moreover, in response to P. syringae infection, high levels of SA accumulated in max2 and this mutant was ozone sensitive. Further analysis of gene expression revealed no major role for strigolactone in regulation of defense gene expression. In contrast, guard cell function was clearly impaired in max2 and depending on the assay used, also in max3, max4, and d14 mutants. We analyzed stomatal responses to stimuli that cause stomatal closure. While the response to abscisic acid (ABA) was not impaired in any of the mutants, the response to darkness and high CO2 was impaired in max2 and d14‐1 mutants, and to CO2 also in strigolactone synthesis (max3, max4) mutants. To position the role of MAX2 in the guard cell signaling network, max2 was crossed with mutants defective in ABA biosynthesis or signaling. This revealed that MAX2 acts in a signaling pathway that functions in parallel to the guard cell ABA signaling pathway. We propose that the impaired defense responses of max2 are related to higher stomatal conductance that allows increased entry of bacteria or air pollutants like ozone. Furthermore, as MAX2 appears to act in a specific branch of guard cell signaling (related to CO2 signaling), this protein could be one of the components that allow guard cells to distinguish between different environmental conditions.

show abstract