|Table of Contents|

Effects of N Fertilizer Application on Sucrose and Starch Metabolism in Vitis vinifera L. Seedlings(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年14
Page:
53-59
Research Field:
Publishing date:

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Title:
Effects of N Fertilizer Application on Sucrose and Starch Metabolism in Vitis vinifera L. Seedlings
Author(s):
YANG Xiang1; YU Songlin1; SUN Huimin2; HE Xiufeng1; SUN Linlin3; ZHAO Fengyun1
(1.College of Agronomy,Shihezi University/The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germplasm Resources of the Xinjiang Production and Construction Corps,Shihezi,Xinjiang 832003;2.Forestry Work Management Station,The Eighth Division of The Xinjiang Production and Construction Corps，Shihezi,Xinjiang 832000;3.Shihezi Academy of Agricultural Sciences,Shihezi,Xinjiang 832000)
Keywords:
Victoria grape (Vitis vinifera L.Victoria); N fertilizer application; sucrose; starch; enzymatic activity
PACS:
-
DOI:
10.11937/bfyy.20184685
Abstract:
The seedlings 1-year-old grape(Vitis vinifera L.cv.Victoria) were used as test materials，four different nitrogen application rates (based on pure nitrogen per pot) were used in the greenhouse pot experiment(0 mg (CK),150 mg (T1),300 mg (T2) and 450 mg (T3)),respectively,the effects of nitrogen application rate on sucrose and starch content and metabolism-related enzyme activities in grape seedling leaves were studied,in order to reveal the effect of N application rate on the accumulation and metabolism of main photosynthetic products.The results showed that the application of N fertilizer could significantly increase the content of sucrose and starch in leaves,and significantly increase the activities of sucrose phosphate synthase (SPS) and sucrose synthase synthesis (SSs).The activities of SPS decreased in the order T2>T3>T1>CK.T2 and T3 were significantly higher than CK and T1.Nitrogen application had little effect on SSs activity；sucrose synthase degradation direction (SSd) activity was significantly higher than SSs activity,and sucrose synthase net activity was degraded sucrose.The activities of acid invertase (AI) and neutral invertase (NI) showed an increasing trend with time.Applied N fertilizer could significantly increase AI activity.Different nitrogen rates could significantly increase the activity of starch phosphorylase (SP).Nitrogen application slowed down the increase the activity of α-amylase,and T2 increased β-amylase and total amylase activities.In conclusion,N application could increase the content of sucrose and starch in grape leaves,increase the activity of enzymes related to sucrose and starch metabolism,and promote the accumulation and metabolism of carbohydrates in grape seedlings,among them,T2 was better.

References:

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Last Update: 2019-08-08