Roles of abscisic acid in regulating ripening and quality of strawberry, a model non-climacteric fruit

Li, Baijun; Grierson, Donald; Shi, Yanna; Chen, Kunsong

doi:10.1093/hr/uhac089

Cited by 60 publications

(49 citation statements)

References 144 publications

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“…With the development of strawberry fruits, the concentration of auxin declined and accelerates the rate of fruit ripening, indicating that auxin content is negatively correlated with fruit ripening. On the contrary, the level of ABA rises at the white stage, and increases rapidly until the red stage, which is consistent with the onset of fruit coloring and anthocyanin accumulation [ 17 , 44 ]. Xu et al showed that MiR167 delayed strawberry fruit senescence by targeting ARF8 under low temperature [ 45 ], the ARF6 and ARF8 single mutation leading to parthenocarpic fruit [ 46 ].…”

Section: Discussionsupporting

confidence: 61%

Importance of FaWRKY71 in Strawberry (Fragaria × ananassa) Fruit Ripening

Yue

Jiang

Zhang

et al. 2022

IJMS

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WRKY transcription factors play a nonnegligible role in plant growth and development, but little is known about the involvement of WRKY transcription factors in the regulation of fruit ripening. In this study, FaWRKY71 was identified to be closely related to fruit maturation in octoploid strawberry. FaWRKY71 protein localized in the nucleus and responded to cold, salt, low phosphate, ABA, and light quality in strawberry seedlings. The temporal and spatial pattern expression analysis indicated that FaWRKY71 was expressed in all the detected tissues, especially in the full red fruits. In addition, FaWRKY71 gave rise to the accumulation of anthocyanin content by promoting the expression of structural genes FaF3’H, FaLAR, FaANR, and transport factors FaTT19 and FaTT12 in the flavonoid pathway, and softening the texture of strawberry via up-regulating the abundance of FaPG19 and FaPG21. Furthermore, FaWRKY71 was a positive regulator that mediated resistance against reactive oxygen species by enhancing the enzyme activities of SOD, POD, and CAT, reducing the amount of MDA. Altogether, this study provides new and comprehensive insight into the regulatory mechanisms facilitating fruit ripening in strawberry.

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Section: Discussionsupporting

confidence: 61%

Importance of FaWRKY71 in Strawberry (Fragaria × ananassa) Fruit Ripening

Yue

Jiang

Zhang

et al. 2022

IJMS

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“…Abscisic acid plays a pivotal role in regulating the ripening and quality of strawberry fruits ( Jia et al, 2011 ; Li et al, 2022 ). Exogenous ABA treatment promotes AsA accumulation, while the regulatory roles of ABA in this metabolism process have not been well-understood ( Li et al, 2015 , 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Genome-Wide Analysis of Ascorbic Acid Metabolism Related Genes in Fragaria × ananassa and Its Expression Pattern Analysis in Strawberry Fruits

Liu

Wei

et al. 2022

Front. Plant Sci.

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Ascorbic acid (AsA) is an important antioxidant for scavenging reactive oxygen species and it is essential for human health. Strawberry (Fragaria × ananassa) fruits are rich in AsA. In recent years, strawberry has been regarded as a model for non-climacteric fruit ripening. However, in contrast to climacteric fruits, such as tomato, the regulatory mechanism of AsA accumulation in strawberry fruits remains largely unknown. In this study, we first identified 125 AsA metabolism-related genes from the cultivated strawberry “Camarosa” genome. The expression pattern analysis using an available RNA-seq data showed that the AsA biosynthetic-related genes in the D-mannose/L-galactose pathway were downregulated remarkably during fruit ripening which was opposite to the increasing AsA content in fruits. The D-galacturonate reductase gene (GalUR) in the D-Galacturonic acid pathway was extremely upregulated in strawberry receptacles during fruit ripening. The FaGalUR gene above belongs to the aldo-keto reductases (AKR) superfamily and has been proposed to participate in AsA biosynthesis in strawberry fruits. To explore whether there are other genes in the AKR superfamily involved in regulating AsA accumulation during strawberry fruit ripening, we further implemented a genome-wide analysis of the AKR superfamily using the octoploid strawberry genome. A total of 80 FaAKR genes were identified from the genome and divided into 20 subgroups based on phylogenetic analysis. These FaAKR genes were unevenly distributed on 23 chromosomes. Among them, nine genes showed increased expression in receptacles as the fruit ripened, and notably, FaAKR23 was the most dramatically upregulated FaAKR gene in receptacles. Compared with fruits at green stage, its expression level increased by 142-fold at red stage. The qRT-PCR results supported that the expression of FaAKR23 was increased significantly during fruit ripening. In particular, the FaAKR23 was the only FaAKR gene that was significantly upregulated by abscisic acid (ABA) and suppressed by nordihydroguaiaretic acid (NDGA, an ABA biosynthesis blocker), indicating FaAKR23 might play important roles in ABA-mediated strawberry fruit ripening. In a word, our study provides useful information on the AsA metabolism during strawberry fruit ripening and will help understand the mechanism of AsA accumulation in strawberry fruits.

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“…Ethylene is required for ripening initiation in climacteric fruits and is a major cue that initiates most aspects of ripening [ 5 , 32 , 37 ], although signaling by other hormones also augments ripening. In the non-climacteric strawberry, however, ABA appears to be the main initiator of ripening [ 38 ].…”

Section: Erf Transcription Factors In Fruit Ripeningmentioning

confidence: 99%

“…Thus, there is substantial evidence for involvement of ERFs in regulating aspects of ripening in climacteric and non-climacteric fruits. However, it should be emphasized, as mentioned above, that ERFs have been identified mainly by gene homology, and it is possible that in non-climacteric fruit they are regulated by other hormones, in addition to ethylene, such as ABA [ 38 ].…”

Section: Erf Transcription Factors In Fruit Ripeningmentioning

confidence: 99%

Contrasting Roles of Ethylene Response Factors in Pathogen Response and Ripening in Fleshy Fruit

et al. 2022

Cells

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Fleshy fruits are generally hard and unpalatable when unripe; however, as they mature, their quality is transformed by the complex and dynamic genetic and biochemical process of ripening, which affects all cell compartments. Ripening fruits are enriched with nutrients such as acids, sugars, vitamins, attractive volatiles and pigments and develop a pleasant taste and texture and become attractive to eat. Ripening also increases sensitivity to pathogens, and this presents a crucial problem for fruit postharvest transport and storage: how to enhance pathogen resistance while maintaining ripening quality. Fruit development and ripening involve many changes in gene expression regulated by transcription factors (TFs), some of which respond to hormones such as auxin, abscisic acid (ABA) and ethylene. Ethylene response factor (ERF) TFs regulate both fruit ripening and resistance to pathogen stresses. Different ERFs regulate fruit ripening and/or pathogen responses in both fleshy climacteric and non-climacteric fruits and function cooperatively or independently of other TFs. In this review, we summarize the current status of studies on ERFs that regulate fruit ripening and responses to infection by several fungal pathogens, including a systematic ERF transcriptome analysis of fungal grey mould infection of tomato caused by Botrytis cinerea. This deepening understanding of the function of ERFs in fruit ripening and pathogen responses may identify novel approaches for engineering transcriptional regulation to improve fruit quality and pathogen resistance.

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Roles of abscisic acid in regulating ripening and quality of strawberry, a model non-climacteric fruit

Cited by 60 publications

References 144 publications

Importance of FaWRKY71 in Strawberry (Fragaria × ananassa) Fruit Ripening

Importance of FaWRKY71 in Strawberry (Fragaria × ananassa) Fruit Ripening

Genome-Wide Analysis of Ascorbic Acid Metabolism Related Genes in Fragaria × ananassa and Its Expression Pattern Analysis in Strawberry Fruits

Contrasting Roles of Ethylene Response Factors in Pathogen Response and Ripening in Fleshy Fruit

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