Definition of Indicators of Senescence in the Rose : Effect of the Application of Plant Hormones

Barthe, Ph.; Vaillant, Victor; Gudin, S.

doi:10.17660/actahortic.1991.298.5

Cited by 12 publications

(8 citation statements)

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“…5 Besides, ABA has been used for keeping the freshness of postharvest flowers. 11 Nevertheless, ABA has few applications in practices due to its chemical instability, high production expenses, and rapid catabolism by plant enzymes. 12 Recently, studies reported that several ABA receptor agonists, such as AM1 and AMF4, displayed lasting effects in promoting stomatal closure and protecting plants from water loss.…”

Section: Introductionmentioning

confidence: 99%

“…It was demonstrated that exogenous abscisic acid (ABA) inhibited water loss of postharvest romaine lettuce during storage . Besides, ABA has been used for keeping the freshness of postharvest flowers . Nevertheless, ABA has few applications in practices due to its chemical instability, high production expenses, and rapid catabolism by plant enzymes .…”

Section: Introductionmentioning

confidence: 99%

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Efficacy of ABA-Mimicking Ligands in Controlling Water Loss and Maintaining Antioxidative Capacity of Spinacia oleracea

Zhang

et al. 2018

J. Agric. Food Chem.

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Abscisic acid (ABA) is a central regulator for various developmental processes and responses to abiotic stresses in plants. However, its practical application in controlling water loss of postharvest produces is largely restrained. Herein, the present study reported that two ABA-mimicking ligands, AM1 and AMF4, markedly reduced water loss by promoting stomatal closure and effectively alleviated weight loss in spinach. AM1 and AMF4 also alleviated chlorophyll and vitamin C degradation and simultaneously reduced hydrogen peroxide and malondialdehyde (MDA) production; moreover, both enzymatic and nonenzymatic systems involved in antioxidative capacity were activated. The expression levels of SoOST1, SoSLAC1, SoRCAR3, SoPYL5, SoNCED3, and SoAREB1 were also up-regulated. These findings indicate that AM1 and AMF4 are promising as novel means for reducing water loss, maintaining visual quality, delaying senescence, and extending shelf life in leafy vegetables.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficacy of ABA-Mimicking Ligands in Controlling Water Loss and Maintaining Antioxidative Capacity of Spinacia oleracea

Zhang

et al. 2018

J. Agric. Food Chem.

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“…In addition, ABA is also considered the major factor of stomatal movement Exogenous abscisic acid inhibits the water-loss of postharvest romaine lettuce during storage by inducing stomatal closure (Dodd, 2003). It has already been used for retaining the freshness of postharvest flowers, and it has been proposed to be related to moisture adjustment and stomatal closure (Barthe et al, 1991). Moreover, an ABA-deficient mutant assay has demonstrated the important role of ABA in the fresh keeping of postharvest citrus fruit (Alférez et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Exogenous abscisic acid inhibits the water-loss of postharvest romaine lettuce during storage by inducing stomatal closure

Liu¹,

Yang²,

Zhao³

et al. 2015

Food Sci. Technol (Campinas)

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Postharvest lettuce often lose water, thus affecting both its market value and consumer acceptance. However, the mechanism of the water-loss is still waiting well exploration. The aim of the present study was to investigate the effect of a foliar application of ABA on the fresh weight-loss and the chlorophyll content of postharvest lettuce as well as its association with the regulation of stomata. The present data demonstrated that exogenously application of ABA, in a concentration range of 0 to 100 µM, significantly lowered the fresh weight-loss of postharvest lettuce. ABA also delayed chlorophyll reduction during ambient storage, but this protective effect was ABA concentration-dependent. Among the tested ABA concentrations, 50 µM or lower ABA produced an inhibition effect on chlorophyll degradation in postharvest lettuce leaves. The results demonstrated that the exogenous ABA treatment can obviously reduce the transpiration rate of lettuce leaves by promoting the stomatal closure of postharvest lettuce, therefore eventually delay fresh weight-loss. The present study primarily showed that the application of exogenous ABA, which originated from a naturally-produced phytohormone, has a great potential in retaining the freshness of postharvest lettuce that is stored in an ambient condition, although possible practical application still need to be further evaluated.Keywords: lettuce; postharvest; abscisic acid; water-loss; stomatal closure. Practical Application:The effect of a foliar application of ABA on postharvest lettuce was investigated. The results demonstrated that the ABA, which originated from a naturally-produced phytohormone, can obviously reduce the transpiration rate of lettuce leaves by promoting the stomatal closure of postharvest lettuce, therefore eventually delay fresh weight-loss and chlorophyll reduction during ambient storage. The strategy could potentially be used as an alternative for lettuce producer and retailer to effectively retain the fresh of postharvest lettuce products.

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“…ABA treatment can induce stomatal closure and reduce water loss in cut roses (Pompodakis and Joyce, 2003) and in Geraldton waxflower foliage (Joyce and Jones, 1992), thereby extending vase-life. Also, ABA sprays to the leaves of 'Royalty' roses on day-1 and day-3 of vase-life reduced water use and delayed senescence (Barthe et al, 1991). These results suggest that reducing leaf stomatal aperture reduces leaf competition for water and improves the water status of cut Grevillea 'Crimson Yul-lo' stems, delays inflorescence wilting and thereby extends inflorescence vase-life.…”

Section: Discussionmentioning

confidence: 83%

Competition for water between inflorescences and leaves in cut flowering stems ofGrevillea‘Crimson Yul-lo’

Joyce

Irving

2006

The Journal of Horticultural Science and Biotechnology

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SUMMARYGrevillea cv. 'Crimson Yul-lo' has large bright red terminal inflorescences on leafy stems and has recognised commercial potential as a cut flower crop. A major limitation is its relatively short vase-life, often terminated by early wilting of the inflorescence despite apparently turgid leaves. An investigation of the water relations of cut Grevillea 'Crimson Yul-lo' stems revealed that the water potential of inflorescences on intact stems in vases was significantly higher (i.e., less negative) than that of leaves from day-0 to day-3 of vase-life. Thereafter, the water potential of inflorescences declined more rapidly than that of leaves, accompanied by visible wilting of the tepals and styles of individual florets. Removal of leaves from the stems reduced both water uptake and water loss, and delayed the onset of a negative water balance in the inflorescence. Bagging of entire stems, leaves only, or inflorescences only, with microperforated plastic film to reduce transpiration, reducing leaf number to reduce leaf area, or supplying abscisic acid to reduce leaf stomatal aperture, all aided relative fresh weight retention by stems and extended vase-life. Four or six leaves on a stem caused greater loss in inflorescence water content than zero or two leaves. Considered collectively, these findings show competition for water between the inflorescence and the leaves in cut Grevillea 'Crimson Yul-lo' stems contributes to the onset of inflorescence wilting and their short vaselife.3 revillea is a large genus within the family Proteaceae and it contains over 300 species (Joyce and Beal, 1999), many of which are grown world-wide (Costin and Costin, 1988;Joyce and Beal, 1999;Joyce, 2004). Many grevilleas, especially hybrids of subtropical and tropical species, are woody shrubs or small trees with attractive large, colourful inflorescences and soft, divided fern-like foliage that make them appealing as landscape plants. Their inflorescences also have commercial potential as cut flowers (Costin and Costin, 1988;Joyce, 2004), but a major limitation to their use as cut flowers is their relatively short vase-life of often less than 1 week (Faragher, 1989;Joyce et al., 1996;Joyce and Beal, 1999;Joyce, 2004). Cut stems of Grevillea 'Crimson Yul-lo' (Grevillea banksii × Grevillea 'Misty Pink') have large bright-red terminal inflorescences consisting of 90−120 florets at various developmental stages arranged along a single floral rachis ( Figure 1A, B), but the inflorescences have a vase-life of only three-four days in water.A number of factors influencing the longevity of cut Grevillea flowers have been studied.The vase-life of Grevillea 'Majestic' inflorescences harvested in Winter was generally longer than that of Summer-harvested inflorescences (Vuthapanich et al., 1993). The vase lives of Grevillea 'Sylvia' and Grevillea 'Honey Gem' were dependent upon the harvest maturity stage, with optimum maturity being characterized by opening of the lowest florets (Joyce and Beal, 1999). Addition of sucrose to vase solutions imp...

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Definition of Indicators of Senescence in the Rose : Effect of the Application of Plant Hormones

Cited by 12 publications

References 0 publications

Efficacy of ABA-Mimicking Ligands in Controlling Water Loss and Maintaining Antioxidative Capacity of Spinacia oleracea

Efficacy of ABA-Mimicking Ligands in Controlling Water Loss and Maintaining Antioxidative Capacity of Spinacia oleracea

Exogenous abscisic acid inhibits the water-loss of postharvest romaine lettuce during storage by inducing stomatal closure

Competition for water between inflorescences and leaves in cut flowering stems ofGrevillea‘Crimson Yul-lo’

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