Medicinal Plant

2016, v.7(Z6) 11-15+18

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A Study on Differences of Pigment and Nutrient Substance Contents among Impatiens L. Strains with Different Flower Colours
A Study on Differences of Pigment and Nutrient Substance Contents among Impatiens L. Strains with Different Flower Colours

Yongfu ZHANG;Dingkang WANG;Yanfen NIU;Shengjing PENG;

摘要(Abstract):

[Objectives] The research aimed to study the differences of pigment and nutrient substance contents among Impatiens L. strains with different flower colours. [Methods] Nine Impatiens L. strains with different flower colours were used to examine the contents of pigments,non-structural carbohydrates and titratable acids of petal,leaf and stem by pot experiment,and their relativity was analysed. [Results]The redder the petal,the higher the anthocyanin content,with significant difference. The contents of flavonoid and total phenol in orange,light red and white petals were significantly lower than that of cardinal colour system of petal. The contents of carotenoid in pink,pale red and purplish red petals were significantly higher than that of other colour system of petal. But anthocyanin content was low in purple petal,meaning that main pigment in purple petal might not be anthocyanin. Moreover,a small amount of anthocyanin was detected in leaf and stem,and its content was higher in the strain with redder flower. Chlorophyll a content of leaf had no significant among test materials,whereas the contents of chlorophyll b and chlorophyll( a + b) of leaf from red petal strains were significantly higher than that of white and pale red strains. By correlation analysis,it was found that soluble sugar content of petal had significantly positive correlation with anthocyanin content; flavonoid content had significantly positive correlation with the starch and titratable acid contents of leaf,whereas showed very significant negative correlation with soluble sugar content of leaf. Relativity between total phenol and titratable acid was significant positive correlation in petal,and relativity between carotenoid content of petal and titratable acid content of leaf was very significant positive correlation,whereas showed very significant negative correlation with starch content of stem. [Conclusions] The research could provide theoretic basis for development and utilization of Impatiens L.

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基金项目(Foundation): Supported by Science Research Item of Kunming University(XJZZ1604);; Key Disciplines(Ecology)Project of Yunnan Education Department

作者(Author): Yongfu ZHANG;Dingkang WANG;Yanfen NIU;Shengjing PENG;

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