金沙江干热河谷地区麻疯树单粒种子核糖体失活蛋白含量及其与种子性状的相关性

Curcin Content of Jatropha curcas Seeds and Its Correlationship with Seed Traits in Dry-hot Valley of Jinsha River

对金沙江干热河谷地区麻疯树(Jatropha curcas L.)种子中具有抗肿瘤活性的核糖体失活蛋白curcin含量及其生物学性状进行研究。结果表明,用酶联免疫吸附法测定麻疯树单颗种子的curcin含量为0.275～3.183 mg g-1,平均(1.369±0.055)mg g-1。Pearson相关性分析表明:单粒麻疯树种子的curcin含量与种子其他性状的相关性均未达显著水平,但与种子质量、种仁质量及含油量存在一定程度的负相关,而与出仁率和可溶性蛋白含量存在一定的正相关,且与可溶性蛋白含量的正相关系数(0.190)和与含油率的负相关系数(–0.177)较高。这表明可在金沙江干热河谷地区开展高curcin含量麻疯树种质资源收集和选育工作,以及培育高含油量、高curcin含量的双高品种,以提高麻疯树生物燃油产业的综合效益。

Curcin content and some seed traits of Jatropha curcas seed collected from Dry-hot Valley of Jinsha River were determined. The results showed that curcin content by Enzyme-linked immunosorbent assay ranged from 0.275 to 3.183 mg g-1 with average of （1.369±0.055） mg g-1. Pearson correlation analysis indicated that curcin content had no significant correlations with some seed traits, such as seed weight, kernel weight, oil content, seed- kernel rate and soluble protein content. There were a certain negative correlation between curcin content and seed weight, kernel weight and oil content, on the contrary, curcin content had a certain positive correlation with seed- kernel rate and soluble protein content. It suggested that germplasm collection and breeding with high curcin content of Jatropha curcas could perform in Dry-hot valley of Jinsha River, and breed new variety with high oil and eurcin contents of Jatropha curcas, so as to improve comprehensive efficiency of Jatropha curcas biofuel industry.