论文部分内容阅读
用豌豆Sparkle及其单基因突变体E107进行的水培的试验表明,-Fe和+Fe处理的E107幼苗以及-Fe处理的Sparkle幼苗均表现出根系H+分泌量大、根系Fe(Ⅲ)还原力强等特点,其中尤以+Fe处理的E107最为突出;而十Fe处理的Sparkle则无以上特点。与Sparkle相比,E107各处理的地上部Fe、Mn合量均很高,但根部含量则相反。与Spekle相比,E107—Fe处理表现为Fe高效,即使在+Fe处理下,E107仍表现出-Fe条件下的根系生理特性,活化并还原了根际大量Fe(Ⅲ)和Mn,因而它对Fe、Mn具有较高的吸收效率,但是这些元素并不在根系中贮存,而是源源不断地运输到地上部,并在叶片中累积乃至使叶片中毒坏死,充分表现了E107单基因突变体对Fe、Mn也具有较高的转移效率。
Hydroponic experiments with Pea Sparkle and its single-gene mutant E107 showed that both E-107 seedlings and -Fe-treated Sparkle seedlings treated with -Fe and + Fe exhibited strong H + secretion and strong Fe (Ⅲ) reduction Among them, the E107 with + Fe treatment is the most prominent, while the Spark with 10 Fe treatments has no above characteristics. Compared with Sparkle, E107 treatment of the aboveground Fe, Mn combined amount is high, but the root content is the opposite. Compared with Spekle, E107-Fe showed high efficiency of Fe, even under + Fe treatment, E107 still showed root physiological characteristics in -Fe condition, activated and reduced a large amount of Fe (Ⅲ) and Mn in the rhizosphere, Fe and Mn have higher absorption efficiency, but these elements are not stored in the root system, but continue to transport to the aerial parts, and leaves in the accumulation or even necrosis of the leaves, fully demonstrated E107 single-gene mutant of Fe , Mn also has a higher transfer efficiency.