J Integr Plant Biol. ›› 2001, Vol. 43 ›› Issue (1): 108-110.

• Research Articles • Previous Articles    

Relationship Between Drought Resistance and Betaine Aldehyde Dehydrogenase in the Shoots of Different Genotypic Wheat and Sorghum

ZHAO Shu-Qing, LIN Chun, YANG Xiao-He, WU Wei-Hua   


Ethyl methane-sulfonate (EMS)-mutagenized Arabidopsis M2 populations were screened in low-K+ medium using the root-bending assay. Forty-two putative low-K+-tolerant ( lkt ) mutants were selected from 150?000 tested M2 seedlings, and two of these mutants maintained their low-K+-tolerant phenotype in their M3 generations, respectively. Genetic analysis showed that either one of these two mutants has a monogenic recessive mutation in a nuclear gene, and that the two mutations in two independent mutants are allelic to each other.

骆爱玲1刘家尧1马德钦2王学臣1  梁峥1

(1. 中国科学院植物研究所光合作用研究中心,北京100093;2. 中国科学院微生物研究所,北京100080;
3. 中国农业大学生物学院,北京100094)

摘要: 不同基因型小麦(Triticum aestivum L.)和高粱(Sorghum vulgare L.)的抗旱性与其种芽中的甜菜碱醛脱氢酶 (BADH) 的含量存在密切关系。种芽中的BADH含量可以作为种质资源抗旱性评价鉴定的参考指标。 关键词: 抗旱性;甜菜碱醛脱氢酶;小麦;高粱

Key words: Arabidopsis thaliana , low K+-tolerance, mutant

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