Chin J Plan Ecolo ›› 2005, Vol. 29 ›› Issue (4): 636-643.doi: 10.17521/cjpe.2005.0085

• Research Articles • Previous Articles     Next Articles

EFFECTS OF DIFFERENT WATER TREATMENTS ON STARCH ACCUMULATION AND RELATED ENZYME ACTIVITY IN GRAIN OF MAIZE DURING GRAIN-FILLING PERIOD

ZHANG Zhi-Meng1,2, DAI Liang-Xiang2, HU Chang-Hao1*, DONG Shu-Ting1, WANG Kong-Jun1, and NING Tang-Yuan1   

  1. (1 College of Agronomy, Shandong Agricultural University, Tai'an, Shandong 271018, China)
  • Online:2005-07-31 Published:2005-07-31
  • Contact: HU Chang-Hao

Abstract:

Starch, one of the main products metabolized in the grain of maize, directly affects the yield and quality of maize. The synthesis of starch in maize grain is affected by the activities of several enzymes. We studied the effects of different water treatments on the grain starch content and components and related enzyme activity during the grain-filling period of two cultivars—the common corn, Yedan22, and the high oil corn, Gaoyou115. Three water treatments were chosen: W0 (no water irrigation after anthesis), W1 (irrigation one time after anthesis), W2 (irrigation two times after anthesis). The results showed that the patterns of starch accumulation and related enzyme activity were the same in the two cultivars, but their response to water treatments were different. Water duress significantly increased starch and amylopectin content and decreased amylose content in Yedan22, but increased the starch, amylopectin and amylose content in Gaoyou115. When sufficient levels of water were supplied, starch yield and its components significantly increased, as did the SS and SPS activities in ear leaves and ADPG-PPase, UDPG-PPase, SSS and GBSS activities in the grain, especially 10 to 30 days after anthesis. Increased enzyme activity in grain increased the amylopectin and amylose content in Gaoyou115. The activities of these enzymes in grain under water duress decreased early and quickly, and the activities of SPS, ADPG-PPase, and SSS were more sensitive to water duress than other enzymes.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] Lu Zhong-shu. Plant Growth Regutators in Relation to Plant Water Status[J]. Chin Bull Bot, 1985, 3(04): 1 -6 .
[2] Li Da Jue;Han Yun-zhou and Wan Li-ping. Studies on Germplasm Collections of Carthamus tinctorius IV Screening of the characterization of Seed Domancy[J]. Chin Bull Bot, 1990, 7(02): 50 -52 .
[3] . [J]. Chin Bull Bot, 1999, 16(增刊): 45 -46 .
[4] LU Jin-Yao;LUO Ai-Ling and LIANG Zheng. Some Improvement of TD-PAGE Technology[J]. Chin Bull Bot, 1998, 15(03): 69 -72 .
[5] LI Ling-Hao and CHEN Zuo-Zhong. The Global Carbon Cycle in Grassland Ecosystems and Its Responses to Global Change I . Carbon Flow Compartment Model, Inputs and Storage[J]. Chin Bull Bot, 1998, 15(02): 14 -22 .
[6] Huanhuan Xu, Jian Kang, Mingxiang Liang. Research Advances in the Metabolism of Fructan in Plant Stress Resistance[J]. Chin Bull Bot, 2014, 49(2): 209 -220 .
[7] . [J]. Chin Bull Bot, 2013, 48(1): 4 -5 .
[8] . [J]. Chin Bull Bot, 1996, 13(专辑): 45 .
[9] SHU Qun-Fang;ZHOU Lu;LI Wen-Bin;ZHANG LI-Ming and SUN Yong-Ru. Study on Gel Electrophoresis of Protein from Plant and Our Improved Methods[J]. Chin Bull Bot, 1998, 15(06): 73 -78 .
[10] ZHANG Zhi-Dong, ZANG Run-Guo. PREDICTING POTENTIAL DISTRIBUTIONS OF DOMINANT WOODY PLANT KEYSTONE SPECIES IN A NATURAL TROPICAL FOREST LANDSCAPE OF BAWANGLING, HAINAN ISLAND, SOUTH CHINA[J]. Chin J Plan Ecolo, 2007, 31(6): 1079 -1091 .