DRY-MATTER PARTITIONING BETWEEN BULBS AND LEAVES IN PLANTLETS OF LILIUM-SPECIOSUM REGENERATED INVITRO

被引：19

作者：

GERRITS, MM

DEKLERK, GJ

机构：

来源：

ACTA BOTANICA NEERLANDICA | 1992年 / 41卷 / 04期

关键词：

ABSCISIC ACID; BULB FORMATION; DRY-MATTER PARTITIONING; GIBBERELLINS; LILIUM; TISSUE CULTURE;

D O I：

10.1111/j.1438-8677.1992.tb00516.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Plantlets of Lilium speciosum regenerated in vitro consist of scales that may or may not bear a leaf. We studied the effects of several physical, nutritional and hormonal factors on dry-matter partitioning between bulbs and leaves. Both absolute bulb weight and relative bulb weight (bulb weight as a percentage of plant weight) were determined. High temperature, culture in the dark and high osmolarity promoted relative bulb weight. Day-length had no effect. Amongst the nutritional factors sucrose promoted relative bulb weight. High concentration of MS-nutrients caused an increase in bulb fresh weight only. Bulb formation was under control of abscisic acid (ABA): ABA added to the medium completely blocked leaf formation, whereas fluridone, an inhibitor of ABA-synthesis, inhibited bulb formation. Paclobutrazol (PP333) blocked leaf formation completely. The PP333-effect was reversed by gibberellins A4+7. Cytokinin (6-benzylaminopurine), auxin (indoleacetic acid), ethylene and methyl jasmonate had no effect.

引用

页码：461 / 468

页数：8

共 19 条

[1]

Aartrijk J. van, 1986, Tissue culture as a plant production system for horticultural crops, P317

[2] THE DEVELOPMENT OF DORMANCY IN BULBLETS OF LILIUM SPECIOSUM GENERATED INVITRO .1. THE EFFECTS OF CULTURE CONDITIONS [J].