CYTOKININ BIOSYNTHESIS BY EXTRACTS OF ZEA-MAYS

被引：32

作者：

BLACKWELL, JR

HORGAN, R

机构：

[1] Department of Biological Sciences, University of Wales, Aberystwyth

来源：

PHYTOCHEMISTRY | 1994年 / 35卷 / 02期

关键词：

ZEA MAYS; GRAMINAE; DMAPP-AMP TRANSFERASE; CYTOKININ BIOSYNTHESIS;

D O I：

10.1016/S0031-9422(00)94760-5

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Cell-free extracts of immature Zea kernels incubated with tritiated AMP and DMAPP produced the cytokinins Delta(2)-isopentenyladenosine and its monophosphate. The products were identified on the basis of extensive HPLC analysis of both the compounds themselves and derivatives. The results suggest that the primary reaction in cytokinin biosynthesis in higher plants is mechanistically similar to that of the Agrobacterium DMAPP:AMP transferases.

引用

收藏

页码：339 / 342

页数：4

相关论文

共 9 条

[1] T-DNA OF AGROBACTERIUM-TUMEFACIENS ENCODES AN ENZYME OF CYTOKININ BIOSYNTHESIS [J].

AKIYOSHI, DE ;

KLEE, H ;

AMASINO, RM ;

NESTER, EW ;

GORDON, MP .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES, 1984, 81 (19) :5994-5998

[2] IDENTIFICATION OF A CLONED CYTOKININ BIOSYNTHETIC GENE [J].

BARRY, GF ;

ROGERS, SG ;

FRALEY, RT ;

BRAND, L .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES, 1984, 81 (15) :4776-4780

[3]

CHEN CM, 1982, PLANT GROWTH SUBSTAN

[4] TRIS(TETRA-NORMAL-BUTYLAMMONIUM) HYDROGEN PYROPHOSPHATE - A NEW REAGENT FOR THE PREPARATION OF ALLYLIC PYROPHOSPHATE ESTERS [J].

DIXIT, VM ;

LASKOVICS, FM ;

NOALL, WI ;

POULTER, CD .

JOURNAL OF ORGANIC CHEMISTRY, 1981, 46 (09) :1967-1969

[5] BIOSYNTHESIS OF CYTOKININ IN GERMINATING-SEEDS OF ZEA-MAYS [J].

HOCART, CH ;

LETHAM, DS .

JOURNAL OF EXPERIMENTAL BOTANY, 1990, 41 (233) :1525-1528

[6] PURIFICATION AND SOME PROPERTIES OF DISCADENINE SYNTHASE FROM DICTYOSTELIUM-DISCOIDEUM [J].

IHARA, M ;

TANAKA, Y ;

YANAGISAWA, K ;

TAYA, Y ;

NISHIMURA, S .

BIOCHIMICA ET BIOPHYSICA ACTA, 1986, 881 (01) :135-140

[7]

MEMELINK J, 1988, THESIS U LEIDEN

[8] 5'-AMP IS A DIRECT PRECURSOR OF CYTOKININ IN DICTYOSTELIUM-DISCOIDEUM [J].

TAYA, Y ;

TANAKA, Y ;

NISHIMURA, S .

NATURE, 1978, 271 (5645) :545-547

[9]

XUE ZT, 1992, PHYSL BIOCH CYTOKINI