GIBBERELLIN-LIKE SUBSTANCES IN ROOT EXUDATE OF VITIS VINIFERA

被引:66
作者
SKENE, KGM
机构
关键词
D O I
10.1007/BF00384846
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The levels of gibberellin (GA)-like activity in the root exudate of 2 seedless varieties of Vitis vinifera were examined by the barley endosperm assay, and compared with levels determined for other parts of the plant. That activity was due to GA-like substances was confirmed with dwarf-5 corn. When acidic, ethyl acetate soluble GA-like substances from sap and leaf extracts were chromatogrammed on thin layers of silica gel in chloroform/ethyl acetate/formic acid (50: 50:1), activity moved to the same Rf as GA3 and GA1 (Rf 0.05[long dash]0.25). However, substances inhibitory to the barley endosperm assay were detected in both sap and leaf extracts. In the above solvent system the inhibitor(s) co-chromatogrammed with a GA4/GA7 mixture, and with abscisin II. The GA-like activity co-chromatogrammed with GA3 on paper developed in isopropanol/ammonia/water (10:1:1). Calculations on the rate of gibberellin movement from the roots seemed to be compatible with levels of activity in the leaves, although these levels could also be a reflection of the general gibberellin level in the plant. The relevance of the findings is discussed.
引用
收藏
页码:250 / +
页数:1
相关论文
共 29 条
[11]   ORGANS OF GIBBERELLIN SYNTHESIS IN LIGHT-GROWN SUNFLOWER PLANTS [J].
JONES, RL ;
PHILLIPS, ID .
PLANT PHYSIOLOGY, 1966, 41 (08) :1381-&
[12]   PRESERVATION OF CHLOROPHYLL IN LEAF SECTIONS BY SUBSTANCES OBTAINED FROM ROOT EXUDATE [J].
KENDE, H .
SCIENCE, 1964, 145 (363) :1066-&
[14]  
LOEFFLER JE, 1964, REGULATEURS NATURELS, P77
[15]   TEST-PLANTS FOR INVESTIGATIONS OF PHYSIOLOGY OF FRUITING IN VITIS VINIFERA L [J].
MULLINS, MG .
NATURE, 1966, 209 (5021) :419-&
[16]  
Nitsch J. P., 1965, Bulletin de la Societe Botanique de France, V112, P11
[17]  
NITSCH JP, 1964, REGULATEURS NATUR ED, P77
[18]   TEMPERATURE EFFECTS ON ROOT PRESSURE EXUDATION [J].
OLEARY, JW .
ANNALS OF BOTANY, 1966, 30 (119) :419-+
[19]   GIBBERELLIN-LIKE ACTIVITY IN BLEEDING-SAP OF ROOT SYSTEMS OF HELIANTHUS-ANNUUS DETECTED BY A NEW DWARF PEA EPICOTYL ASSAY AND OTHER METHODS [J].
PHILLIPS, IDJ ;
JONES, RL .
PLANTA, 1964, 63 (03) :269-278
[20]   EVIDENCE FOR GIBBERELLIN-LIKE SUBSTANCES FROM FLOWERING PLANTS [J].
PHINNEY, BO ;
WEST, CA ;
RITZEL, M ;
NEELY, PM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1957, 43 (05) :398-404