2013
DOI: 10.1073/pnas.1322135111
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Abstract: This report provides direct evidence that strigolactone (SL) positively regulates drought and high salinity responses in Arabidopsis. Both SL-deficient and SL-response [more axillary growth (max)] mutants exhibited hypersensitivity to drought and salt stress, which was associated with shoot-rather than root-related traits. Exogenous SL treatment rescued the drought-sensitive phenotype of the SL-deficient mutants but not of the SL-response mutant, and enhanced drought tolerance of WT plants, confirming the role… Show more

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Cited by 532 publications
(498 citation statements)
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“…Thus, a comparison of SL-deficient and SL-response max Arabidopsis mutants subjected to drought with or without SLs applications revealed that the drought-sensitive phenotype of the max3 and max4 mutants could be rescued when they were sprayed with SLs. Furthermore, SL-treated wild-type Arabidopsis plants were more tolerant to drought than the untreated plants [93]. It seems to support the role of SLs as a positive regulator of plant response to drought.…”
Section: Effect Of Sls On Plant Growth Responses Under Drought and Sasupporting
confidence: 55%
“…Thus, a comparison of SL-deficient and SL-response max Arabidopsis mutants subjected to drought with or without SLs applications revealed that the drought-sensitive phenotype of the max3 and max4 mutants could be rescued when they were sprayed with SLs. Furthermore, SL-treated wild-type Arabidopsis plants were more tolerant to drought than the untreated plants [93]. It seems to support the role of SLs as a positive regulator of plant response to drought.…”
Section: Effect Of Sls On Plant Growth Responses Under Drought and Sasupporting
confidence: 55%
“…Ha and co-workers showed that SL-deficient mutants were hypersensitive to drought and salt stress, and that this phenotype was rescued by exogenous GR24 application. The authors also showed that wild-type plants treated with GR24 were more tolerant to these stresses than untreated plants (Ha et al 2014). The results from lettuce, tomato and Arabidopsis suggest a different behaviour between mycorrhizal and non-mycorrhizal plants in response to water-related stresses.…”
Section: Water-related Stressesmentioning
confidence: 96%
“…These results might suggest that plants sense the presence of the AM fungus and that they respond by producing SLs under unfavourable conditions to improve colonization. A relationship between drought and salinity with SLs has also been proposed in the non-mycorrhizal plant Arabidopsis (Ha et al 2014). Here, a positive effect of SLs on the tolerance to these stresses was observed.…”
Section: Water-related Stressesmentioning
confidence: 99%
“…For the SL signaling components, MAX2/RMS4/D3 encodes an F-box protein participating in SL perception (17-19), D14/DAD2 encodes a protein of the α/β-fold hydrolase superfamily, a proposed SL receptor (20)(21)(22)(23)(24)(25), and D53 encodes a Clp protease family protein as a repressor (26,27). Recently, SLs also have been found to be involved in regulating stem secondary growth, leaf sentences, seed germination, root development, and abiotic stress responses (28,29). In this study, we found that mutants defective in the SL biosynthetic and signaling pathways can rescue the spreading phenotype of la1 and further demonstrated Significance Shoot gravitropism is a key determinant of tiller angle, one of the most important factors that affect ideal plant architecture and grain yield of cereal crops.…”
mentioning
confidence: 99%