NMR MICROSCOPY OF THE GERMINATING CASTOR BEAN

被引：13

作者：

MORRIS, PG ^{[1
]}

DARCEUIL, HE ^{[1
]}

JASINSKI, A ^{[1
]}

JHA, AK ^{[1
]}

MCINTYRE, DJO ^{[1
]}

NORTHCOTE, DH ^{[1
]}

机构：

[1] INST NUCL PHYS,PL-31342 KRAKOW,POLAND

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 1990年 / 333卷 / 1632期

关键词：

D O I：

10.1098/rsta.1990.0176

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Water uptake is the trigger for germination and growth. It is a trisphasic process, involving a rapid rehydration of the endosperm, a steady uptake during a period of active metabolism and finally, a rapid uptake during development of the root system. The water spin lattice relaxation time (T1) of the germinating seed of the castor bean (Ricinus communis zanzibariensis) apparently decreases with increasing water content. This anomalous behaviour is resolved when the recovery process is analysed as two components: each component shows the expected dependence on water content but the proportion of the faster relaxing component increase during development. NMR microscopy is used to investigate the location of these water compartments and to follow the anatomical changes which occur during the germination and early growth processes.

引用

页码：487 / 493

页数：7

共 50 条

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