Hormonal control of parthenocarpic fruit set in ‘Rojo Brillante’ persimmon (Diospyros kaki Thunb.)

Reig, Carmina; Martínez‐Fuentes, Amparo; Mesejo, Carlos; Agustí, Manuel

doi:10.1016/j.jplph.2018.09.004

Cited by 7 publications

(3 citation statements)

References 42 publications

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“…Fruit set in higher plants requires pollination. In fruiting plants, ovarian cell division is temporarily stopped at anthesis until pollination and fertilization occur (Reig et al, 2018). During this process, GA biosynthetic pathways are active in ovules (Dorcey et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

PbGA20ox2 Regulates Fruit Set and Induces Parthenocarpy by Enhancing GA4 Content

Wang

Liu

et al. 2020

Front. Plant Sci.

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Fruit set and development occur following successful fertilization. Parthenocarpy, a valuable trait in some self-incompatible species, produces seedless fruit without fertilization. Gibberellin (GA) is a crucial hormone in fruit-set regulation and development. While investigating the development of parthenocarpy in pear (Pyrus bretschneideri Rehd.), we determined that GA 20-oxidases (GA20ox) may play key roles in seedless pear fruit development. Sequence analysis revealed three PbGA20ox genes: PbGA20ox1, PbGA20ox2, and PbGA20ox3. We analyzed the expression patterns of candidate genes and found that PbGA20ox2 levels significantly changed in pollinated fruits. Tissue-specific expression assays revealed that PbGA20ox2 is highly expressed in young fruit and leaves. Subcellular localization assays showed it was located in the cytoplasm, nucleus, and plasma membrane. Overexpressed PbGA20ox2 tomato plants were taller and had longer hypocotyls and internodes, and the emasculated flowers produced parthenocarpic fruit. In pear, the transient overexpression of PbGA20ox2 promoted fruit development and delayed the drop of nonpollinated fruit. Furthermore, the fruit of PbGA20ox2-overexpressing tomato and transient PbGA20ox2overexpressing pear had increased GA 4 (but not GA 3 and GA 1 ) contents. This result provided evidence that PbGA20ox2 was necessary for GA 4 -dependent pear fruit development. Our study revealed that PbGA20ox2 altered the GA biosynthetic pathway and enhanced GA 4 synthesis, thereby promoting fruit set and parthenocarpic fruit development.

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Section: Discussionmentioning

confidence: 99%

PbGA20ox2 Regulates Fruit Set and Induces Parthenocarpy by Enhancing GA4 Content

Wang

Liu

et al. 2020

Front. Plant Sci.

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“…It has been demonstrated that IAA is involved in fruit set initiation in combination with gibberellins (Mezzetti et al, 2004; Serrani et al, 2010; Bermejo et al, 2018; Hu et al, 2018). Impairment of IAA biosynthesis or signaling generally leads to fruit parthenocarpy, although it may also result in abnormal ripening in some fruits (Wang et al, 2005; Liu J. et al, 2018; Reig et al, 2018). High contents of IAA at initial stages of fruit development promote fruit growth due to auxin implication in cell division in combination with cytokinins and in the control of cell expansion in combination with gibberellins (Liao et al, 2018).…”

Section: Role Of Chorismate-derived Phytohormones In Climacteric and mentioning

confidence: 99%

Biosynthesis, Metabolism and Function of Auxin, Salicylic Acid and Melatonin in Climacteric and Non-climacteric Fruits

et al. 2019

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Climacteric and non-climacteric fruits are differentiated by the ripening process, in particular by the involvement of ethylene, high respiration rates and the nature of the process, being autocatalytic or not, respectively. Here, we focus on the biosynthesis, metabolism and function of three compounds (auxin, salicylic acid and melatonin) sharing not only a common precursor (chorismate), but also regulatory functions in plants, and therefore in fruits. Aside from describing their biosynthesis in plants, with a particular emphasis on common precursors and points of metabolic diversion, we will discuss recent advances on their role in fruit ripening and the regulation of bioactive compounds accumulation, both in climacteric and non-climacteric fruits.

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“…It has been demonstrated that IAA is involved in fruit set initiation in combination with gibberellins (Mezzetti et al, 2004;Serrani et al, 2010;Bermejo et al, 2018;Hu et al, 2018). Impairment of IAA biosynthesis or signaling generally leads to fruit parthenocarpy, although it may also result in abnormal ripening in some fruits (Wang et al, 2005;Liu J. et al, 2018;Reig et al, 2018). High contents of IAA at initial stages of fruit development promote fruit growth due to auxin implication in cell division in combination with cytokinins and in the control of cell expansion in combination with gibberellins (Liao et al, 2018).…”

Section: Auxins Cross-talk With Other Hormones During Fruit Set Growt...mentioning

confidence: 99%

Bioactive Compounds Biosynthesis and Metabolism in Fruit and Vegetables

Ferrante¹,

Manganaris²,

Pintado³

et al. 2020

Frontiers Research Topics

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Hormonal control of parthenocarpic fruit set in ‘Rojo Brillante’ persimmon (Diospyros kaki Thunb.)

Cited by 7 publications

References 42 publications

PbGA20ox2 Regulates Fruit Set and Induces Parthenocarpy by Enhancing GA4 Content

PbGA20ox2 Regulates Fruit Set and Induces Parthenocarpy by Enhancing GA4 Content

Biosynthesis, Metabolism and Function of Auxin, Salicylic Acid and Melatonin in Climacteric and Non-climacteric Fruits

Bioactive Compounds Biosynthesis and Metabolism in Fruit and Vegetables

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