scholarly journals Rice Sucrose Partitioning Mediated by a Putative Pectin Methyltransferase and Homogalacturonan Methylesterification

2017 ◽  
Vol 174 (3) ◽  
pp. 1595-1608 ◽  
Author(s):  
Yonghan Xu ◽  
Julien Sechet ◽  
Yingbao Wu ◽  
Yaping Fu ◽  
Longfei Zhu ◽  
...  
Keyword(s):  
Sucrose Partitioning

Sorbitol and sucrose partitioning in the growing apple fruit

1997 ◽  
Vol 151 (3) ◽  
pp. 269-276 ◽  
Author(s):  
Josef Berüter ◽  
Monika E. Studer Feusi ◽  
Peter Rüedi
Keyword(s):  
Apple Fruit ◽  
Sucrose Partitioning

Cadmium Induces Changes in Sucrose Partitioning, Invertase Activities, and Membrane Functionality in Roots of Rangpur Lime (Citrus limonia L. Osbeck)

Plant Biology ◽  
2006 ◽  
Vol 8 (5) ◽  
pp. 706-714 ◽  
Author(s):  
G. Podazza ◽  
M. Rosa ◽  
J. A. González ◽  
M. Hilal ◽  
F. E. Prado
Keyword(s):  
Rangpur Lime ◽  
Sucrose Partitioning

Influence of cell turgor on sucrose partitioning in potato tuber storage tissues

Planta ◽  
1988 ◽  
Vol 175 (4) ◽  
pp. 520-526 ◽  
Author(s):  
Karl J. Oparka ◽  
Kathryn M. Wright
Keyword(s):  
Potato Tuber ◽  
Cell Turgor ◽  
Sucrose Partitioning

scholarly journals 733 PB 023 PHOTOSYNTHESIS AND MANNITOL/SUCROSE PARTITIONING UNDER DIFFERENT CO, ASSIMILATION CONDITIONS IN CELERY

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 538a-538
Author(s):  
Riccardo Gucci ◽  
John Everard ◽  
James Flore ◽  
Wayne Loescher
Keyword(s):  
Gas Exchange ◽  
Carbon Partitioning ◽  
Compensation Point ◽  
Carboxylation Efficiency ◽  
Apium Graveolens ◽  
Polyol Synthesis ◽  
Photosynthetic Rates ◽  
Sucrose Partitioning

Photosynthetic rates (A) in celery-(Apium graveolens L.) and other polyol-synthesizers are sometimes high for C, species. In celery such rates have been related to a low CO2 compensation point typical of C4 and C3-C4 intermediate spp, although other data show celery photosynthesis as typically C3 Therefore, celery gas exchange was here reanalyzed, and while A was high (CO2 assimilation rates were 21.2 and 27.6 μ mol m-2s-1, average and maximum, photosynthesis was otherwise C,: CO, comp pt of 3.5-5.0 Pa, carboxylation efficiency of 0.99 μmol CO2m-2s-1Pa-1, light comp pt of 8-36 μ mol photon m-1s-1, optimum temp of 22-27°C for Amax. High A may relate to a capacity to synthesize both mannitol and sucrose. 14C pulse-chase studies, with different A obtained by imposing light gradients across opposite leaflets, showed 1-10% increases in mannitoll sucrose labelling. Higher A may reflect carbon partitioning into mannitol, agreeing with a hypothesis that polyol synthesis effectively recycles reductant in the cytosol.

Phylogenetic Relationships of Sucrose Transporters (SUTs) in Plants and Genome-wide Characterization of SUT Genes in Orchidaceae

2020 ◽  
Author(s):  
Yunzhu Wang ◽  
Yue Chen ◽  
Qingzhen Wei ◽  
Hongjian Wan ◽  
Chongbo Sun
Keyword(s):  
Plant Species ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Total Content ◽  
Water Soluble ◽  
Long Distance ◽  
Sucrose Transporters ◽  
Specific Subgroup ◽  
Plant Level ◽  
Sucrose Partitioning

Abstract BackgroundSucrose is the primary form of photosynthetically produced carbohydrates transported long distance in many plant species, which significantly affects plant growth, development and physiology. Sucrose transporters (SUTs or SUCs) are a group of membrane proteins that play vital roles in mediating sucrose allocation within cells and at the whole plant level.ResultsIn this study, we investigated the relationship of SUTs in 24 representative plant species and performed a comprehensive analysis of SUT genes in three sequenced Orchidaceae species, Dendrobium officinale, Phalaenopsis equestris, and Apostasia shenzhenica. All the SUTs from 24 plants were classified into three groups and five subgroups: subgroups A, B1, B2.1, B2.2, and C, based on the evolutionary relationships. A total of 22 SUT genes were identified in Orchidaceae species, among which D. officinale had 8 genes (DenSUT01-08), P. equestris had 8 genes (PeqSUT01-08) and A. shenzhenica had 6 genes (PeqSUT01-06). For the 22 Orchidaceae SUTs, each of the subgroups A, B2.2 and C contains three genes, whereas the SUT genes were significantly expanded in the monocot-specific subgroup B2.1 which contained 12 genes. To shed light into sucrose partitioning and functions of sucrose transporters in Orchidacea species, we analysed water-soluble sugar content and performed RNA sequencing of different tissues of D. officinale, including leaves, stems, flowers and roots. The results showed that although total content of water-soluble polysaccharides was highest in the stems of D. officinale, the sucrose content was highest in flowers. Moreover, gene expression analysis showed that most of the DenSUTs were expressed in flowers, among which DenSUT01, DenSUT07 and DenSUT06 had significantly high expression levels.ConclusionsThese results indicated that stems are used as main storage sinks for photosynthetically produced sugar in D. officinale, and that the DenSUTs mainly take functions in the cellular machinery and development of floral organs. Our findings provide valuable information on sucrose partitioning and the evolution and functions of SUT genes in Orchidaceae and other species.

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