Use of non-destructive devices to support pre- and postharvest fruit management

Costa, Guglielmo; Vidoni, S.; Rocchi, Lorenzo

doi:10.17660/actahortic.2016.1119.45

Cited by 8 publications

(8 citation statements)

References 21 publications

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“…We aimed to detect the moment that GA 3 starts to exert its action in early- and mid-season varieties; therefore, we measured the index of absorbance difference (IAD), which is a maturity index used for nondestructive assessment of the progression of the ripening process [ 49 ]. IAD indicates the presence of phenolic compounds that filter the chlorophyll absorbance and significantly correlates with anthocyanin content in sweet cherry ripened fruits [ 50 ].…”

Section: Resultsmentioning

confidence: 99%

Gibberellic Acid Modifies the Transcript Abundance of ABA Pathway Orthologs and Modulates Sweet Cherry (Prunus avium) Fruit Ripening in Early- and Mid-Season Varieties

Kühn

Ponce

Arellano

et al. 2020

Plants

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Several phytohormones modulate ripening in non-climacteric fruits, which is triggered by abscisic acid (ABA). Gibberellins (GAs) are present during the onset of ripening in sweet cherry fruits, and exogenous gibberellic acid (GA3) application delays ripening, though this effect is variety-dependent. Although an ABA accumulation delay has been reported following GA3 treatment, the mechanism by which GA modulates this process has not been investigated at the molecular level in sweet cherry. Therefore, the aim of this work is to analyze the effect of GA3 on the fruit ripening process and the transcript levels of ABA pathway orthologs in two varieties having different maturity time phenotypes. The early-season variety had a rapid transition from yellow to pink fruit color, whereas pink color initiation took longer in the mid-season variety. GA3 increased the proportion of lighter colored fruits at ripeness in both varieties, but it produced a delay in IAD—a ripening index—only in the mid-season variety. This delay was accompanied by an increased transcript abundance of PavPP2Cs, which are putative negative regulators of the ABA pathway. On the other hand, the early-season variety had increased expression of PavCYP707A2—a putative ABA catabolic gene–, and reduced transcript levels of PavPP2Cs and SnRK2s after the GA3 treatment. Together these results show that GA modulates fruit ripening, exerting its action in part by interacting with the ABA pathway in sweet cherry.

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Section: Resultsmentioning

confidence: 99%

Gibberellic Acid Modifies the Transcript Abundance of ABA Pathway Orthologs and Modulates Sweet Cherry (Prunus avium) Fruit Ripening in Early- and Mid-Season Varieties

Kühn

Ponce

Arellano

et al. 2020

Plants

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“…2A). Costa et al (2016) reported that IAD values were a useful tool for assessing postharvest ripening of 'Abbé Fétel' pear fruit.…”

Section: Physicochemical Parameters Evolution During Shelf Lifementioning

confidence: 99%

Ripening behaviour and consumer acceptance of ‘Conference’ pears during shelf life after long term DCA-storage

Torregrosa

Echeverría

Illa

et al. 2019

Postharvest Biology and Technology

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“…IAD is a non-destructive ripening index utilized in sweet cherry, correlated with the anthocyanin content 25 . It estimates phenolic compounds that act as a screen for chlorophyll absorbance by measuring absorbance differences between 560 nm, 640 nm, and the 750 nm reference 26 . After the GA 3 treatment, the early-season variety had a lower IAD value only at harvest in both seasons (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the monitoring of fruit-ripening parameters is crucial for a better understanding of the physiological effect of GA 3 on late- or mid-season varieties. For this, we used the IAD ripening index 26 , already utilized in the context of sweet cherry fruit ripening 25 . We observed a color difference as soon as 15 days after the GA 3 treatment (Fig.…”

Section: Discussionmentioning

confidence: 99%

RNAseq reveals different transcriptomic responses to GA3 in early and midseason varieties before ripening initiation in sweet cherry fruits

Kühn

Maldonado

Ponce

et al. 2021

Sci Rep

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Gibberellin (GA) negatively affects color evolution and other ripening-related processes in non-climacteric fruits. The bioactive GA, gibberellic acid (GA3), is commonly applied at the light green-to-straw yellow transition to increase firmness and delay ripening in sweet cherry (Prunus avium L.), though causing different effects depending on the variety. Recently, we reported that GA3 delayed the IAD parameter (a ripening index) in a mid-season variety, whereas GA3 did not delay IAD but reduced it at ripeness in an early-season variety. To further explore this contrasting behavior between varieties, we analyzed the transcriptomic responses to GA3 applied on two sweet cherry varieties with different maturity time phenotypes. At harvest, GA3 produced fruits with less color in both varieties. Similar to our previous report, GA3 delayed fruit color initiation and IAD only in the mid-season variety and reduced IAD at harvest only in the early-season variety. RNA-seq analysis of control- and GA3-treated fruits revealed that ripening-related categories were overrepresented in the early-season variety, including ‘photosynthesis’ and ‘auxin response’. GA3 also changed the expression of carotenoid and abscisic acid (ABA) biosynthetic genes in this variety. In contrast, overrepresented categories in the mid-season variety were mainly related to metabolic processes. In this variety, some PP2Cs putative genes were positively regulated by GA3, which are negative regulators of ABA responses, and MYB44-like genes (putative repressors of PP2Cs expression) were downregulated. These results show that GA3 differentially modulates the transcriptome at the onset of ripening in a variety-dependent manner and suggest that GA3 impairs ripening through the modification of ripening associated gene expression only in the early-season variety; whereas in the mid-season variety, control of the ripening timing may occur through the PP2C gene expression regulation. This work contributes to the understanding of the role of GA in non-climacteric fruit ripening.

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Use of non-destructive devices to support pre- and postharvest fruit management

Cited by 8 publications

References 21 publications

Gibberellic Acid Modifies the Transcript Abundance of ABA Pathway Orthologs and Modulates Sweet Cherry (Prunus avium) Fruit Ripening in Early- and Mid-Season Varieties

Gibberellic Acid Modifies the Transcript Abundance of ABA Pathway Orthologs and Modulates Sweet Cherry (Prunus avium) Fruit Ripening in Early- and Mid-Season Varieties

Ripening behaviour and consumer acceptance of ‘Conference’ pears during shelf life after long term DCA-storage

RNAseq reveals different transcriptomic responses to GA3 in early and midseason varieties before ripening initiation in sweet cherry fruits

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