Physiological Roles of Polyols in Horticultural Crops

Kanayama, Yoshinori

doi:10.2503/jjshs1.78.158

Cited by 35 publications

(21 citation statements)

References 109 publications

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“…Numerous roles have been attributed to polyols, such as the translocation and storage of photosynthates (Kanayama, 2009). Polyols are osmotically active solutes accumulated in response to abiotic stress (i.e.…”

Section: Discussionmentioning

confidence: 99%

Metabolic profiling of ripe olive fruit in response to moderate water stress

Martinelli

Remorini

Saia

et al. 2013

Scientia Horticulturae

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a b s t r a c tThe concentrations of different metabolites in olive (Olea europaea (L.)) fruit at harvest can be affected by water availability, with significant consequences on the composition and the quality of the resulting oil. The aim of the present study was to profile the metabolic composition of ripe olives (cv. Cipressino) grown under water-stress and irrigated conditions applied during the last part of the fruit developmental cycle (from pit hardening to commercial harvest). The imposed conditions resulted in a moderate water stress (−3.5 MPa) at the end of the experimental period. Samples (pulp + skin) of fruit collected at the stage of complete epicarp pigmentation were analyzed by means of GC-MS. In total, 176 metabolites were detected, of which 57 were identified. Principal component analysis (PCA) of stress and non-stress treatments resulted in clearly separated profiles with the first principal component (PC1) mostly correlated with the organic acid content. Of the 57 compounds identified, 19 metabolites (organic acids, fatty acids, soluble sugars, and terpens) accumulated differently in the two sets of samples. A reduction in soluble sugars and unsaturated fatty acids was detected in water stressed samples, suggesting an acceleration of the ripening process. These results highlighted the validity of metabolic profiling to study the effects of water stress in terms of both fruit composition and physiology.

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Section: Discussionmentioning

confidence: 99%

Metabolic profiling of ripe olive fruit in response to moderate water stress

Martinelli

Remorini

Saia

et al. 2013

Scientia Horticulturae

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“…2) Sorbitol-metabolizing enzymes and their regulation Kanayama (2009) reviewed the cloning, properties and functions of sorbitol enzymes. Therefore, the present review targets mainly the role of sorbitol enzymes in fruit development, and describes briefly the cloning and properties of sorbitol enzymes.…”

Section: Metabolic Conversion Of Translocation Sugars In Fruitmentioning

confidence: 99%

Metabolism and Accumulation of Sugars Translocated to Fruit and Their Regulation

Yamaki

2010

J. Japan. Soc. Hort. Sci.

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Photoassimilates needed for fruit development are supplied from leaves, converted in fruit to substances relating to the specific quality of the fruit, then accumulate in the fruit. There are various regulation steps in the process from photoassimilate synthesis in leaves to sugar accumulation in fruit: photosynthesis, synthesis of translocation sugars, loading of translocation sugars, their translocation, their unloading, their membrane transport, their metabolic conversion, and compartmentation in vacuoles. Thus, it is important to clarify the mechanism and regulation of each step in fruit development. In this review, mainly the metabolic conversion of translocation sugars and their regulation at the genetic level in fruit are described because the metabolic conversion in fruit contributes greatly to produce the sink activity needed for fruit development.

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“…This high ratio in apple/pear could be related to the increase of B mobility by sorbitol, which is one of the main transport forms of photosynthate in apple/ pear (Kanayama, 2009). In contrast, a novel mechanism of B phloem mobility that is not dependent on sorbitol may be present in eggplant, whose main transport form of photosynthate is sucrose.…”

Section: Discussionmentioning

confidence: 92%

Ionomic Analysis of Horticultural Plants Reveals Tissue-specific Element Accumulation

2015

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Ionomic analysis was performed in three diverse fruit crops in order to characterize element concentrations in edible parts and to compare element concentrations between edible parts and vegetative organs and between species. Nineteen elements, including elements essential for human health, toxic elements, and elements with radioisotopes from nuclear reactors, were analyzed in apple (Malus domestica), Japanese pear (Pyrus pyrifolia), eggplant (Solanum melongena), and edamame (Glycine max). The concentrations of elements were shown as basic information needed for biofortification, and high mobilities depending on plant species were found for some elements whose mobilities are believed to be low. Classification of element profiles into the leaf (or the leaf blade) and other organs containing edible parts, except the calyx, by principal component analysis revealed similarity in the element concentrations across species. The present study may contribute to progress in the ionomic studies of fruit crops.

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Physiological Roles of Polyols in Horticultural Crops

Cited by 35 publications

References 109 publications

Metabolic profiling of ripe olive fruit in response to moderate water stress

Metabolic profiling of ripe olive fruit in response to moderate water stress

Metabolism and Accumulation of Sugars Translocated to Fruit and Their Regulation

Ionomic Analysis of Horticultural Plants Reveals Tissue-specific Element Accumulation

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