Cultivar-based fruit size in olive depends on different tissue and cellular processes throughout growth

Hammami, Sonia; Manrique, Trinidad; Rapoport, Hava F.

doi:10.1016/j.scienta.2011.07.018

Cited by 74 publications

(84 citation statements)

References 34 publications

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“…We evaluated fruits of the following four olive tree (Olea europaea L.) cultivars with a range of mature fruit sizes (in order from large to small): 'Manzanilla de Sevilla,' 'Hojiblanca,' 'Picual,' and 'Arbequina' (Barranco 2004 (Hammami et al 2011). The fruits we examined were collected from trees that were 20 years old and planted at a standard density of 270 trees ha À1 at the experimental farm Alameda del Obispo, of the Andalusian Institute for Research and Training in Agriculture, Food, and Fisheries in Cordoba, Spain.…”

Section: Plants and Experiments Designmentioning

confidence: 99%

“…lular processes that produce the final size of fleshy fruits (Gillaspy et al 1993). Comparative studies attribute cultivar fruit size variation to cell number (Scorza et al 1991;Yamaguchi et al 2004;Olmstead et al 2007;Quilot and Génard 2008;Hammami et al 2011) or both cell number and size when wild genotypes are included in the comparison (Yamaguchi et al 2002;Harada et al 2005). However, although exocarp cell activity is considered to be a relevant component of fruit development (Gillaspy et al 1993;Lemaire-Chamley et al 2005;Fu et al 2010), it has generally not been considered in studies of fruit growth or with respect to genetically based size differences.…”

Section: Introductionmentioning

confidence: 99%

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Quantitative Analysis of Cell Organization in the External Region of the Olive Fruit

Hammami

Rapoport

2012

International Journal of Plant Sciences

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. Definitions of the cells that constitute the exocarp or exterior tissue of fleshy fruits are often vague, sometimes providing contradictory descriptions of the epidermis plus none or varying numbers of underlying cell layers for the same species. This study uses a morphometric approach to investigate how cell dimensions, cell number, and their relation with genetically based fruit size differences can contribute to a characterization of tissue organization in the external fruit region, using the olive drupe as an example. We determined cell area, radial and tangential widths, and cell number in the epidermis and 20 subepidermal cell layers of mature fruits of four olive cultivars that range in fruit size. Variation of these measurements among cell layers and the implied cellular contributions to fruit expansion revealed two different subepidermal regions, but with constant widths and layer numbers for all cultivars: (1) the first four cell layers (1-4), which have similar behavior to the epidermis; and (2) the following five cell layers (5-9), which are more similar to the mesocarp. The results provide new insights about cell patterns in the external region of the olive fruit and suggest that layers 1-4 together with the epidermis may act as a multiseriate exocarp and layers 5-9 may act as an outer mesocarp.

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Section: Plants and Experiments Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of Cell Organization in the External Region of the Olive Fruit

Hammami

Rapoport

2012

International Journal of Plant Sciences

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“…The cell size is recognized as the most sensitive parameter to water stress and responsible for lower fruit size in case of water shortage experienced starting from 8 weeks after full bloom (Rapoport et al, 2004) being the twothird of the cell number already defined at this stage (Hammami et al, 2011). A lack of difference on cell size might explain why the oil content in the fruit was also not affected by complementary irrigation despite the fact that irrigation was provided from 8 to 20 weeks after full bloom when mesocarp growth and oil accumulation may be strongly influenced by water availability (Gucci et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Effect of complementary irrigation on yield components and alternate bearing of a traditional olive orchard in semi-arid conditions

Lodolini

Polverigiani

Ali³

et al. 2016

Span. j. agric. res.

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Traditional olive orchards are usually not irrigated in the Mediterranean basin, but at those latitudes, the yearly rainfall is frequently insufficient to support equilibrated vegetative growth and high fruit and oil production. This three-year field study investigated the effect of complementary irrigation on olive tree vegetative growth, fruit and oil yield during a biennial alternate bearing cycle in a traditional grove under semi-arid conditions. Adult olive trees (Olea europaea L. cv. Nabali Baladi) were subjected to complementary irrigation in 2011 and 2012 ('on' and 'off' years, respectively) with 6, 10, 15 or 20 m3 of water per tree per season, which corresponded to 14.2%, 23.8%, 35.7% and 47.6% of the whole seasonal evapotranspiration (42 m3 of water per year), respectively. Rain-fed trees were used as control. In 2013, no complementary irrigation was supplied, and any residual effects on the yield components were determined. Results showed that none of the irrigation regimes affected vegetative growth, or olive fruit size (mesocarp and endocarp), as fresh and dry weights. The fruit and oil yield per tree increased compared to the rain-fed conditions only when the threshold of 15 m3 was exceeded, thus inducing a higher crop load compared to the rain-fed control during the 'off' and even further during the 'on' year. No residual effects were registered in 2013. The study showed that complementary irrigation of at least 35% of the seasonal water requirement can produce remarkable positive effects on fruit yield especially during 'on' bearing years.

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“…Both the endocarp and mesocarp contribute to final fruit size differences among cultivars (Hammami et al, 2011). Fuit size differences across cultivars are mostly due to cell number, while cell size tends to be similar (Rapoport et al, 2004), despite the fact that fruit growth, from the ovary to the mature fruit, is due in greater part to cell expansion than to cell division (Rapoport et al, 2004;Hammami et al, 2011). In fact, the mature fruit has about 8.5 times the cell number compared to the ovary, while cell size is about 250 times greater (Rapoport et al, 2004).…”

Section: Ovary Vs Fruit Characteristicsmentioning

confidence: 99%

“…However, from the ovary to the mature fruit, the mesocarp grows much more than the endocarp (Rosati et al, 2012), probably due to its longer growth period (i.e. up to fruit maturity) compared to the endocarp, which stops growing about eight weeks after bloom (Hammami et al, 2011). However, both tissues grow in strict proportion to their initial cell number in the ovary.…”

Section: Ovary Vs Fruit Characteristicsmentioning

confidence: 99%

Floral Biology: Implications for Fruit Characteristics and Yield

Rosati¹,

Caporali²,

Paoletti³

2012

Olive Germplasm - The Olive Cultivation, Table Olive and Olive Oil Industry in Italy

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Cultivar-based fruit size in olive depends on different tissue and cellular processes throughout growth

Cited by 74 publications

References 34 publications

Quantitative Analysis of Cell Organization in the External Region of the Olive Fruit

Quantitative Analysis of Cell Organization in the External Region of the Olive Fruit

Effect of complementary irrigation on yield components and alternate bearing of a traditional olive orchard in semi-arid conditions

Floral Biology: Implications for Fruit Characteristics and Yield

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