Programmed cell death in kiwifruit stigmatic arms and its relationship to the effective pollination period and the progamic phase

Ferradás, Yolanda; López, Marián; Rey, Manuel; González, María Victoria

doi:10.1093/aob/mcu073

Cited by 18 publications

(3 citation statements)

References 42 publications

(62 reference statements)

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“…The investigation of floral longevity and EPP is a challenging field of plant biology, and of importance in both the horticultural as well as the agricultural context. In fruit producing crops, a short EPP can represent a major restriction for yield stability 40,47 . Also in staple crops such as wheat, rice, or maize, optimization of the period of floral receptivity could contribute to stabilization of seed yield, particularly under adverse environmental conditions.…”

Section: Discussionmentioning

confidence: 99%

KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in the stigma of Arabidopsis

et al. 2018

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Flowers have a species-specific functional life span that determines the time window in which pollination, fertilization and seed set can occur. The stigma tissue plays a key role in flower receptivity by intercepting pollen and initiating pollen tube growth toward the ovary. In this article, we show that a developmentally controlled cell death programme terminates the functional life span of stigma cells in Arabidopsis. We identified the leaf senescence regulator ORESARA1 (also known as ANAC092) and the previously uncharacterized KIRA1 (also known as ANAC074) as partially redundant transcription factors that modulate stigma longevity by controlling the expression of programmed cell death-associated genes. KIRA1 expression is sufficient to induce cell death and terminate floral receptivity, whereas lack of both KIRA1 and ORESARA1 substantially increases stigma life span. Surprisingly, the extension of stigma longevity is accompanied by only a moderate extension of flower receptivity, suggesting that additional processes participate in the control of the flower's receptive life span.

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Section: Discussionmentioning

confidence: 99%

KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in the stigma of Arabidopsis

et al. 2018

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“…The duration of the EPP in fruits varies and can be from one day, as found in pear cultivar 'Doyenné du Comice' [15] up to 12 days in peach cultivar 'Earlihale' [32] and some olive cultivars [33]. EPP has been studied in many temperate and subtropical fruit species, such as apple [30,34], pear [35], japanese quince [36], peach [37], apricot [38], sweet cherry [39], sour cherry [21], almond [40], olive [41], red currant [42], rabbiteye blueberry [43], kiwi [13,44], mango [45], avocado [46], and some citruses [47].…”

Section: Effective Pollination Periodmentioning

confidence: 99%

The Effective Pollination Period of European Plum (Prunus domestica L.) Cultivars in Western Norway

Akšić

Cerović

Hjeltnes³

et al. 2022

Horticulturae

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This study evaluated the effective pollination period (EPP) in four European plum (Prunus domestica L.) cultivars (‘Mallard’, ‘Edda’, ‘Jubileum’, and ‘Reeves’) during two years (2018–2019) under the environmental conditions in western Norway. The pollination of plum cultivars was carried out one, three, five, seven, and nine days after anthesis (DAA) with a pollen mix of two compatible cultivars (‘Victoria’ and ‘Opal’). Initial, middle-season, and final fruit set was recorded after one month and two months after pollination and just before the harvest, respectively. On average from both years cultivar ‘Jubileum’ had the highest fruit set when pollinated one, three, five, seven, and nine DAA (33.23%, 30.83%, 8.47%, 3.08%, and 1.15%, respectively), which was more than two folds higher fruit set than in the other studied cultivars. Cultivar ‘Jubileum’ showed significantly reduced fruit set between pollination on five and nine DAA, while cultivars ‘Mallard’, ‘Edda’, and ‘Reeves’ had markedly reduced fruit set if pollinated three to five DAA, implying that the EPP in ‘Jubileum’ was five days while in the rest it was three days. Variation of weather conditions during the flowering period in both years did not have a major effect on the receptivity of stigmas in the studied plum cultivars, which means that the existing differences in the length of EPP is maternal-genotype dependent.

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“…In flowers of Nicotiana tabacum, ethylene production increases rapidly following pollination (De Martinis et al 2002) and plays an important role in triggering the degeneration of cells comprising the transmission tract of the style, thus aiding the passage of pollen tubes through this tissue (Wang et al 1996). Ferradás et al (2014) have further shown that cellular changes indicative of programmed cell death are accelerated by pollination in stigmas and styles of kiwi fruit (Actinidia chinensis var. deliciosa).…”

Section: Further Considerations and Future Directionsmentioning

confidence: 99%

Self-pollination, style length development and seed set in self-compatible Asteraceae: evidence from Senecio vulgaris L.

Love

Graham

Irwin

et al. 2016

Plant Ecology & Diversity

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Background: Variation in style length has been reported in Senecio vulgaris and has been associated with outcrossing rate. Aims: To determine if (i) long styles lack germinated pollen on stigmas left to self-pollinate, (ii) successful self-pollination causes styles to stop elongating and shrink in length and (iii) seed set increases with the amount of pollen deposited on stigmas. Methods: Determined germinated self-pollen on stigmas of long and short styles after auto-self-pollination; scored style length over 48 h in self-pollinated and non-pollinated florets; recorded seed set after placing different amounts of pollen on stigmas.Results: Most long-styled florets had zero or low amounts of germinated pollen on stigmas in contrast to most short-styled florets. Styles initially elongated to the same length in self-pollinated and non-pollinated florets, then shrank in length in self-pollinated florets while continuing to elongate in non-pollinated florets. Seed set increased with number of pollen grains deposited on stigmas. Conclusions: Successful self-pollen deposition and/or germination on stigmas of S. vulgaris are indicated by presence of short styles, whereas the opposite is indicated by presence of long styles in florets left to self-pollinate. Self-pollination causes styles to shrink after initially elongating. Seed set is dependent on the amount of pollen deposited on stigmas.

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Programmed cell death in kiwifruit stigmatic arms and its relationship to the effective pollination period and the progamic phase

Cited by 18 publications

References 42 publications

KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in the stigma of Arabidopsis

KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in the stigma of Arabidopsis

The Effective Pollination Period of European Plum (Prunus domestica L.) Cultivars in Western Norway

Self-pollination, style length development and seed set in self-compatible Asteraceae: evidence from Senecio vulgaris L.

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