ALUMINUM TOLERANCE OF MAIZE CULTIVARS AS ASSESSED BY CALLOSE PRODUCTION AND ROOT ELONGATION

被引:54
作者
LLUGANY, M [1 ]
MASSOT, N [1 ]
WISSEMEIER, AH [1 ]
POSCHENRIEDER, C [1 ]
HORST, WJ [1 ]
BARCELO, J [1 ]
机构
[1] UNIV HANNOVER, INST PFLANZENERNAHRUNG, D-30419 HANNOVER, GERMANY
来源
ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE | 1994年 / 157卷 / 06期
关键词
D O I
10.1002/jpln.19941570609
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The differences in Al tolerance between 12 maize cultivars were investigated using early stress indicators such as relative root elongation rate, induction of callose formation and Al concentrations in 5 mm root tips. Plants were grown in nutrient solution (pH 4.3) and exposed to 0 (control), 20 or 50 mu M Al for 24 h. According to the relative root elongation rates. Regent, C 525 M and Adour 250 were the most Al-tolerant cultivars, while BR 201 F, Teosinte, Alarik, Burras and HS 7777 were Al-sensitive. Cultivars Brummi, HS 1230, Lixis and Aladin showed an intermediate behaviour. A significant inverse correlation between relationship root-elongation rates and both Al concentration in root tips and callose concentrations could be established. The usefulness of callose as an early indicator of Al stress and the importance of Al exclusion from root tips as an Al tolerance mechanism are discussed.
引用
收藏
页码:447 / 451
页数:5
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