植物促生根际细菌对 Dunn 叶生长指标和生理特性的影响。
Effects of plant growth-promoting rhizobacteria on growth indicators and physiological characteristics of Dunn leaves.
机构信息
College of Pharmacy, Dali University, Dali, Yunnan, P.R.China.
College of Food and Biological Engineering/Chongqing Engineering Laboratory for Green Cultivation and Deep Processing of Three Gorges Reservoir Area's Medicinal Herbs, Chongqing Three Gorges University, Chongqing, P.R.China.
出版信息
Plant Signal Behav. 2023 Dec 31;18(1):2203571. doi: 10.1080/15592324.2023.2203571.
As a kind of medicinal plant, Dunn has been over-harvested in the wild population, which leads to its artificial cultivation. The present study aims to analyze the effects of different plant growth-promoting rhizobacteria (PGPR) on the growth and physiological characteristics of leaves. Compared with the CK, the content of malondialdehyde (MDA) was drastically reduced in the leaves of in different treatment groups ( < 0.05), and with S6 showing the most significant reduction in MDA content (content was only about 1/3 that of the CK). The indicators of leaf area, length and width were found to be the highest in group S9, reaching a level that is 3.75, 3.08 and 1.48 times higher than those in group CK, respectively. Group S8 has the largest plant height, which is 1.22 times higher than that in group CK. S2 has the largest stem diameter, which is 1.69 times higher than that in group CK. Group S1 has the largest petiole length, which is 1.74 times higher than that in group CK. Group S6 has the largest chlorophyll content, which is 1.63 times higher than that in group CK. Group S2 has the highest content of soluble sugar and soluble protein, which are 2.02 times and 3.82 times higher than those in group CK. Group S9 exhibits the strongest CAT activity, which is 3.71 times higher than that in group CK. S5 exhibits the strongest SOD activity, which is 2.32 times higher than group CK. Group S1 exhibits the strongest POD activity, which is 5.94 times higher than that in group CK. In conclusion, the inoculation with PGPR is effective in improving the growth of leaves and their physiological indicators, which provides guidance on the application of PGPR to achieve the high quality and yield of .
作为一种药用植物，冬凌草在野生种群中已被过度采集，导致其人工栽培。本研究旨在分析不同植物促生菌（PGPR）对冬凌草叶片生长和生理特性的影响。与 CK 相比，不同处理组冬凌草叶片中的丙二醛（MDA）含量明显降低（<0.05），其中 S6 处理组 MDA 含量降低最显著（含量约为 CK 的 1/3）。叶片面积、长度和宽度的指标在 S9 组中最高，分别达到 CK 的 3.75、3.08 和 1.48 倍。S8 组的株高最大，是 CK 的 1.22 倍。S2 组的茎径最大，是 CK 的 1.69 倍。S1 组的叶柄最长，是 CK 的 1.74 倍。S6 组的叶绿素含量最大，是 CK 的 1.63 倍。S2 组的可溶性糖和可溶性蛋白含量最高，分别是 CK 的 2.02 倍和 3.82 倍。S9 组的 CAT 活性最强，是 CK 的 3.71 倍。S5 组的 SOD 活性最强，是 CK 的 2.32 倍。S1 组的 POD 活性最强，是 CK 的 5.94 倍。综上所述，接种 PGPR 可有效提高冬凌草叶片的生长和生理指标，为 PGPR 在实现冬凌草优质高产中的应用提供了指导。
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