Effects of two training systems on sugar metabolism and related enzymes in cv. Beibinghong (Vitis amurensis Rupr.)

2015 ◽  
Vol 95 (5) ◽  
pp. 987-998 ◽  
Author(s):  
Liyuan Liu ◽  
Lijun Nan ◽  
Xianhua Zhao ◽  
Zhenxing Wang ◽  
Hailong Nan ◽  
...  
Keyword(s):  
Sucrose Synthase ◽  
Sugar Metabolism ◽  
Sucrose Phosphate Synthase ◽  
Training System ◽  
Vitis Amurensis ◽  
Sucrose Content ◽  
Grape Berries ◽  
Training Systems ◽  
Soluble Acid Invertase ◽  
Fruit Setting

Liu, L., Nan, L., Zhao, X., Wang, Z., Nan, H. and Li, H. 2015. Effects of two training systems on sugar metabolism and related enzymes in cv. Beibinghong (Vitis amurensis Rupr.). Can. J. Plant Sci. 95: 987–998. Eight individual sugars and four sugar-metabolism-related enzymes were investigated in the development of Vitis amurensis Rupr. ‘Beibinghong’ grape berries. Two different training systems, vertical shoot positioning (VSP) and Y-shaped training system (Y-shape) were applied. Sucrose contents in the two training systems were significantly related to the sucrose phosphate synthase (SPS) and sucrosynthetic activity of sucrose synthase (SS-s) in berries before veraison. The results show that throughout the veraison period, individual sugars, such as glucose, fructose, galactose and lactose, increased. Glucose and fructose were affected by both training systems, mainly at 15 and 16 wk (weeks after fruit setting). Training systems had no significant effects on the rhamnose, arabinose, galactose and maltose contents, and barely had an effect on the lactose content. The VSP training system mainly affected the sucrose content during the harvest period, while the Y-shape affected sucrose content mainly after 9 wk. During 2011 to 2013, VSP and Y-shape strongly affected the sucrose contents before veraison, and also affected the cleavage activity of sucrose synthase (SS-c) mainly between 5 and 8 wk; however, different training systems barely affected the soluble acid invertase (SAI) activities in whole berry growth. From the perspective of the whole berry development, the results showed that different systems had no significant effects on individual sugars and enzymes.

scholarly journals Levels and Role of Sucrose Synthase, Sucrose-phosphate Synthase, and Acid Invertase in Sucrose Accumulation in Fruit of Asian Pear

1992 ◽  
Vol 117 (2) ◽  
pp. 274-278 ◽  
Author(s):  
Takaya Moriguchi ◽  
Kazuyuki Abe ◽  
Tetsuro Sanada ◽  
Shohei Yamaki
Keyword(s):  
Sucrose Synthase ◽  
Sucrose Phosphate Synthase ◽  
Invertase Activity ◽  
Acid Invertase ◽  
Sucrose Accumulation ◽  
Sucrose Content ◽  
Soluble Acid Invertase ◽  
Asian Pear ◽  
Soluble Acid ◽  
Sucrose Phosphate

Soluble sugar content and activities of the sucrose-metabolizing enzymes sucrose synthase (SS) (EC 2.4.1.13), sucrose-phosphate synthase (SPS) (EC 2.4.1.14), and acid invertase (EC 2.4.1.26) were analyzed in the pericarp of fruit from pear cultivars that differed in their potential to accumulate sucrose to identify key enzymes involved in sucrose accumulation in Asian pears. The Japanese pear `Chojuro' [Pyrus pyrifolia (Burro. f.) Nakai] was characterized as a high-sucrose-accumulating type based on the analysis of mature fruit, while the Chinese pear `Yali' (P. bretschneideri Rehd.) was a low-sucrose-accumulating type throughout all developmental stages. The activity of SS and SPS in `Chojuro' increased during maturation concomitant with sucrose accumulation, whereas the activity of these enzymes in `Yali' did not increase during maturation. The activity of SS and SPS in the former were seven and four times, respectively, higher than those in the latter at the mature stage. Further, among 23 pear cultivars, SS activity was closely correlated with sucrose content, while SPS activity was weakly correlated. Soluble acid invertase activity in `Chojuro' and `Yali' decreased with fruit maturation, but the relationships between soluble invertase activity and sucrose content were not significant. The results indicate that SS and SPS are important determinants of sucrose accumulation in Asian pear fruit and that a decrease of soluble acid invertase activity is not absolutely required for sucrose accumulation.

Sucrose phosphate synthase and sucrose synthase activity during maturation of internodal tissue in sugarcane

2000 ◽  
Vol 27 (1) ◽  
pp. 81 ◽  
Author(s):  
Frederik C. Botha ◽  
Kevin G. Black
Keyword(s):  
Sucrose Synthase ◽  
Accumulation Rate ◽  
Sucrose Phosphate Synthase ◽  
Sucrose Accumulation ◽  
Sucrose Content ◽  
Synthesis Activity ◽  
Species Hybrids ◽  
High Sucrose ◽  
Sucrose Phosphate ◽  
Phosphate Synthase

Sucrose accumulation rates, sucrose-phosphate synthase (SPS, EC 2.4.1.14) and soluble sucrose synthase (SuSy, EC 2.4.1.13) activities were measured in internodal tissue from a sugarcane (Saccharum species hybrids) variety N19. The sucrose accumulation rate sharply increases between internodes 3 to 11. In the older internodes SPS activity was at least three times higher than the SuSy activity. A highly significant positive correlation was found between SPS activity and sucrose content. In contrast, no significant correlation was observed between SuSy and sucrose content. In agreement, when radiolabelled glucose was fed to internodes with a high sucrose accumulation rate, label was equally distributed in the hexose moieties of sucrose. This clearly indicates that SPS is the major sucrose synthesis activity in the culm of sugarcane. Different kinetic forms of SPS apparently exist in the internodal tissue at different stages of development.

scholarly journals Overexpression of Sucrose Phosphate Synthase Enhanced Sucrose Content and Biomass Production in Transgenic Sugarcane

Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 200 ◽  
Author(s):  
Risky Mulana Anur ◽  
Nurul Mufithah ◽  
Widhi Dyah Sawitri ◽  
Hitoshi Sakakibara ◽  
Bambang Sugiharto
Keyword(s):  
Sugar Content ◽  
Sucrose Phosphate Synthase ◽  
Sucrose Content ◽  
Transgenic Sugarcane ◽  
Soluble Acid Invertase ◽  
Sugarcane Yield ◽  
Transgenic Lines ◽  
Key Enzyme ◽  
Sucrose Phosphate ◽  
Phosphate Synthase

Sucrose phosphate synthase (SPS) is a key enzyme in sucrose synthesis, which controls sucrose content in plants. This study was designed to examine the efficacy of the overexpression of SoSPS1 gene on sucrose accumulation and carbon partitioning in transgenic sugarcane. The overexpression of SoSPS1 gene increased SPS activity and sucrose content in transgenic sugarcane leaves. More importantly, the overexpression enhanced soluble acid invertase (SAI) activity concomitant with the increase of glucose and fructose levels in the leaves, whereas sucrose synthase activity exhibited almost no change. In the stalk, a similar correlation was observed, but a higher correlation was noted between SPS activity and sugar content. These results suggest that SPS overexpression has both direct and indirect effects on sugar concentration and SAI activity in sugarcane. In addition, SPS overexpression resulted in a significant increase in plant height and stalk number in some transgenic lines compared to those in non-transgenic control. Taken together, these results strongly suggest that enhancing SPS activity is a useful strategy for improving sugarcane yield.

Morphological and physiological characteristics of abnormal berry development in Vitis amurensis

2021 ◽  
Author(s):  
peilei xu ◽  
Xianyan Han ◽  
Jun Ai ◽  
Yiming Yang ◽  
Hongyan Qin ◽  
...  
Keyword(s):  
Acid Invertase ◽  
Vitis Amurensis ◽  
Growth Stages ◽  
Activity Levels ◽  
Berry Development ◽  
Wine Quality ◽  
Grape Berries ◽  
Soluble Acid Invertase ◽  
Berry Size ◽  
Different Growth Stages

Heterogeneity among grape berries directly affects wine quality and restricts the wine-grape industry’s development. To study the heterogeneous development of Vitis amurensis berries, the morphology and physiology of three different types—large berry, medium berry, and live green ovary (LGO)—in the same clusters of wine-making cultivar ‘Shuangfeng’ were monitored at different growth stages from June to September. External differences in berry development were distinguishable at 12 days after full bloom (DAF). The pedicel, berry size, fresh weight, and seed length of the medium berries were intermediate between those of large berries and LGOs. Seeds are crucial for fruit set and normal berry development. The activity levels of soluble acid invertase and cell-wall-bound acid invertase in large berries increased earlier, at 18 DAF, than the accumulation of sugar. Abscisic acid concentrations in medium berries and LGOs were greater than that in large berries at 18 DAF. The greater endogenous indole-3-acetic acid concentration in the medium berries compared with LGOs might protect the former from abscission.

scholarly journals A Taxonomy in Robot-Assisted Training: Current Trends, Needs and Challenges

Technologies ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 119 ◽  
Author(s):  
Konstantinos Tsiakas ◽  
Maria Kyrarini ◽  
Vangelis Karkaletsis ◽  
Fillia Makedon ◽  
Oliver Korn
Keyword(s):  
Training Session ◽  
Training System ◽  
Human Robot Interaction ◽  
Design Development ◽  
Robot Assisted ◽  
Robot Interaction ◽  
Training Systems ◽  
Robot Perception ◽  
Educational Environments ◽  
And Behavior

In this article, we present a taxonomy in Robot-Assisted Training; a growing body of research in Human–Robot Interaction which focuses on how robotic agents and devices can be used to enhance user’s performance during a cognitive or physical training task. Robot-Assisted Training systems have been successfully deployed to enhance the effects of a training session in various contexts, i.e., rehabilitation systems, educational environments, vocational settings, etc. The proposed taxonomy suggests a set of categories and parameters that can be used to characterize such systems, considering the current research trends and needs for the design, development and evaluation of Robot-Assisted Training systems. To this end, we review recent works and applications in Robot-Assisted Training systems, as well as related taxonomies in Human–Robot Interaction. The goal is to identify and discuss open challenges, highlighting the different aspects of a Robot-Assisted Training system, considering both robot perception and behavior control.

scholarly journals Physicochemical and aromatic composition of 'Sauvignon Blanc' wines obtained from the Y-trellis and VSP training systems

2021 ◽  
Vol 56 ◽  
Author(s):  
José Luiz Marcon Filho ◽  
Douglas André Wurz ◽  
Alberto Fontanella Brighenti ◽  
Aike Anneliese Kretzschmar ◽  
Leo Rufato ◽  
...  
Keyword(s):  
High Altitude ◽  
Capric Acid ◽  
Isoamyl Acetate ◽  
Training System ◽  
Phenolic Composition ◽  
Southern Brazil ◽  
Sauvignon Blanc ◽  
Physicochemical Composition ◽  
Training Systems ◽  
Commercial Vineyard

Abstract: The objective of this work was to compare the effect of the Y-trellis and vertical shoot position trellis (VSP) training systems on the physicochemical composition and aromatic profile of 'Sauvignon Blanc' (Vitis vinifera) wines in a high-altitude region of the state of Santa Catarina, Southern Brazil. The experiment was conducted during the 2015 vintage in a commercial vineyard located in the municipality of São Joaquim. The treatments consisted of the training systems: Y-trellis and VSP pruned in spur cordon. Sixty kilograms of grapes were harvested from each training system to make the wines, which were evaluated as to their chemical and phenolic composition and aromatic profile. There is no effect of the training system on the wine chemical variables pH, total acidity, color, and total polyphenols. The aromatic profile and phenolic composition of the wines are affected by the training systems, being related to the variables ethyl acetate, isoamyl acetate, 3-methyl-1-butanol, propanoic acid, and gallic acid in the Y-trellis, and to 1-hexanol, isovaleric acid, caprylic acid, capric acid, and catechin in VSP. The Y-trellis system can be an alternative for high-altitude regions of Southern Brazil.

scholarly journals Activities of Sucrose and Sorbitol Metabolizing Enzymes in Vegetative Sinks of Peach and Correlation with Sink Growth Rate

1999 ◽  
Vol 124 (4) ◽  
pp. 381-388 ◽  
Author(s):  
Riccardo Lo Bianco ◽  
Mark Rieger ◽  
She-Jean S. Sung
Keyword(s):  
Sucrose Synthase ◽  
Prunus Persica ◽  
Shoot Elongation ◽  
Elongation Rate ◽  
Acid Invertase ◽  
Metabolizing Enzymes ◽  
Soluble Acid Invertase ◽  
Neutral Invertase ◽  
Soluble Acid ◽  
Carbohydrate Catabolism

Terminal portions of `Flordaguard' peach roots [Prunus persica (L.) Batsch] were divided into six segments and the activities of NAD+-dependent sorbitol dehydrogenase (SDH), sorbitol oxidase (SOX), sucrose synthase (SS), soluble acid invertase (AI), and soluble neutral invertase (NI) were measured in each segment 10, 15, and 20 days after seed germination. The same type of experiment was conducted with terminal portions of `Flordaguard' and `Nemaguard' peach shoots except that one of the six segments consisted of the leaflets surrounding the apex. Independent of the age of individual roots, activities of SDH and AI were consistently highest in the meristematic portion and decreased with tissue maturation. In shoots, AI was the most active enzyme in the elongating portion subtending the apex, whereas SDH was primarily associated with meristematic tissues. A positive correlation between SDH and AI activities was found in various developmental zones of roots (r = 0.96) and shoots (r = 0.90). Sorbitol and sucrose contents were low in roots regardless of distance from tip, while sucrose showed a decreasing trend with distance and sorbitol, fructose, and glucose increased with distance from the meristem in shoots. Activity of SDH in internodes, but not apices, correlated with shoot elongation rate of both cultivars, whereas activities of other enzymes did not correlate with shoot elongation rate. We conclude that AI and SDH are the predominant enzymes of carbohydrate catabolism and the best indicators of sink growth and development in vegetative sinks of peach.

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