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	Study on the physiological mechanism of boron utilization efficiency in rape cultivars
	Du, CW; Wang, YH; Xu, FS; Yang, YH; Wang, HY
刊名	JOURNAL OF PLANT NUTRITION
	2002
卷号	25期号:2页码:231-244
ISSN号	0190-4167
通讯作者	Du, CW()
英文摘要	In order to uncover the mechanism of boron (B) utilization efficiency, B metabolism was studied through B forms and their balance of transformation. According to the reaction between B and some sugars in rape (Brassica napus L.), B was divided into free B, semi-bound B, and bound B using a sequential extraction procedure. One B-efficient rape cultivar (9589), one B-inefficient rape cultivar (95105), and the F, hybrid (95105 x 9589) were involved in this pot experiment, which was carried out during 1998-1999. Two externally applied B treatments (B-1: 0.05 mg kg(-1) and B-2: 0.25 mg kg(-1)) were used, and in both B treatments, the results showed that the concentration of the three B forms differed between the different cultivars. The free B and bound B concentration in the B-efficient cultivar (9589) was significantly lower than that in the B-inefficient Cultivar (95105), and the F-1 hybrid (95105 x 9589) was intermediate. but the semi-bound B concentration showed the opposite trend. Boron could react with sonic sugars which contained the vicinal group in cis position, which showed closely the relation between B and some sugar in plants. A significant difference of fructose content existed between cultivars. Using thin-layler chromatography and ultraviolet-scan analysis fructose was shown to react easily with B. From the close relationship between B and sugar. a hypothesis concerning the physiological mechanism of B utilization efficiency was formulated, a reaction constant k(m) for the balance of B forms may indicate to sonic degree whether rape cultivars are B efficient.
收录类别	SCI
WOS关键词	CELL-WALLS ; TOBACCO ; DEFICIENCY ; TRANSPORT ; COMPLEXES ; MOBILITY ; LEAVES ; PECTIN ; ROOTS
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
语种	英语
出版者	MARCEL DEKKER INC
WOS记录号	WOS:000173880200002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2559191
专题	南京土壤研究所
通讯作者	Du, CW
作者单位	1.Huazhong Agr Univ, Dept Resources Environm & Agrochem, Trace Element Lab, Wuhan 430070, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, Dept Soil Sci & Plant Nutr, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Du, CW,Wang, YH,Xu, FS,et al. Study on the physiological mechanism of boron utilization efficiency in rape cultivars[J]. JOURNAL OF PLANT NUTRITION,2002,25(2):231-244.
APA	Du, CW,Wang, YH,Xu, FS,Yang, YH,&Wang, HY.(2002).Study on the physiological mechanism of boron utilization efficiency in rape cultivars.JOURNAL OF PLANT NUTRITION,25(2),231-244.
MLA	Du, CW,et al."Study on the physiological mechanism of boron utilization efficiency in rape cultivars".JOURNAL OF PLANT NUTRITION 25.2(2002):231-244.

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