Abstract
BACKGROUND: Spraying selenium (Se) fertilizer is an effective method for Se-enriched fruit production. Sugar content in fruit is the major factor determining berry quality. However, changes in sugar metabolism in response to Se fertilizer are unclear. Hence, this study was conducted to identify the effects of Se fertilizer on sugar metabolism and related enzyme activities of grape berries. Additionally, production of leaves with and without Se fertilizer was also investigated. RESULTS: Acid invertase (AI) activity, total soluble sugar and Se content in berries, and photosynthetic rate in leaves produced under Se fertilizer treatments were higher than that of control. Glucose and fructose were the primary sugars in berries, with a trace of sucrose. In both berries and leaves, neutral invertase activity was lower than AI, there was no significant difference in neutral invertase, sucrose synthase and sucrose phosphate synthase between Se fertilizer-treated and control. In berries, AI showed a significant positive correlation with glucose and fructose; also Se content was significantly correlated with sugar content. CONCLUSION: AI played an important role in the process of sugar accumulation in berries; high AI activity in berries and photosynthetic rate in leaves could explain the mechanism by which Se fertilizer affected sugar accumulation in berries. © 2017 Society of Chemical Industry.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Selenium fertilizer raised acid invertase activity, total soluble sugar and Se content in berries above control.
Verbatim
t0“table grape (Vitis vinifera L.)”
e1“Acid invertase (AI) activity, total soluble sugar and Se content in berries, and photosynthetic rate in leaves produced under Se fertilizer treatments were higher than that of control”
Claim · model-written summary
Selenium fertilizer raised photosynthetic rate in leaves above control.
Verbatim
t0“table grape (Vitis vinifera L.)”
e1“Acid invertase (AI) activity, total soluble sugar and Se content in berries, and photosynthetic rate in leaves produced under Se fertilizer treatments were higher than that of control”
Claim · model-written summary
Selenium fertilizer did not significantly change neutral invertase, sucrose synthase or sucrose phosphate synthase.
Verbatim
t0“table grape (Vitis vinifera L.)”
e2“there was no significant difference in neutral invertase, sucrose synthase and sucrose phosphate synthase between Se fertilizer-treated and control”
Claim · model-written summary
Neutral invertase activity was lower than acid invertase (AI) activity in berries and leaves.
Verbatim
t0“table grape (Vitis vinifera L.)”
e3“In both berries and leaves, neutral invertase activity was lower than AI”
Claim · model-written summary
AI activity in berries was significantly positively correlated with glucose and fructose.
Verbatim
t0“table grape (Vitis vinifera L.)”
e4“In berries, AI showed a significant positive correlation with glucose and fructose”
Claim · model-written summary
Se content was significantly correlated with sugar content in grape berries.
Not reportedDirection
Verbatim
t0“table grape (Vitis vinifera L.)”
e5“Se content was significantly correlated with sugar content”
Claim · model-written summary
Glucose and fructose were the primary sugars in table grape berries, with a trace of sucrose.
Verbatim
t0“table grape (Vitis vinifera L.)”
e6“Glucose and fructose were the primary sugars in berries, with a trace of sucrose”
Claim · model-written summary
Acid invertase played an important role in sugar accumulation in berries.
Verbatim
t0“table grape (Vitis vinifera L.)”
e7“AI played an important role in the process of sugar accumulation in berries”
Claim · model-written summary
High AI activity in berries and photosynthetic rate in leaves could explain how Se fertilizer affected sugar accumulation in berries.
Verbatim
t0“table grape (Vitis vinifera L.)”
e1“high AI activity in berries and photosynthetic rate in leaves could explain the mechanism by which Se fertilizer affected sugar accumulation in berries”
The same questions in other papers
selenium atom · molecular: metabolites · VitisPositive and negative results
2 in the opposite direction
- positive
- positive
selenium atom · physiology: photosynthesis · VitisResults agree
2 papers in the same direction as this paper
- positive
- positive
selenium atom · physiology: osmolytes · VitisResults agree
2 papers in the same direction as this paper
- positive
- positive
fertilization · physiology: photosynthesis · VitisPositive and negative results
13 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
11 papers more in this group
See all 15 papers →fertilization · molecular: metabolites · VitisPositive and negative results
7 papers in the same direction as this paper · 45 in the opposite direction
- positive
- positive
- positive
49 papers more in this group
See all 53 papers →fertilization · physiology: osmolytes · VitisResults agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.