文献类型：期刊文献

英文题名：Response strategies of slash pine (Pinus elliottii) to cadmium stress and the gain effects of inoculation with Herbaspirillum sp. YTG72 in alleviating phytotoxicity and enhancing accumulation of cadmium

作者：Li, Yanglong[1,2] Chen, Xiangteng[1,2] Dong, Yuhong[1,2] Wei, Shumeng[1,2] Zeng, Mansheng[3] Jiao, Ruzhen[1,2]

第一作者：Li, Yanglong

机构：[1] State Key Laboratory of Efficient Production of Forest Resources, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China; [2] State Key Laboratory of Tree Genetics and Breeding & amp, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Chinese Academy of Forestry, Beijing, 100091, China; [3] Experimental Center of Subtropical Forestry, Chinese Academy of Forestry, Fenyi, 336600, China

年份：2024

卷号：31

期号：21

起止页码：31590-31604

外文期刊名：Environmental Science and Pollution Research

收录：EI(收录号：20241715956658);Scopus(收录号：2-s2.0-85190757136)

语种：英文

外文关键词：Bacteria - Bioremediation - Contamination - Mining - Physiological models - Physiology - Plants (botany) - Soil pollution - Soil pollution control - Soils

摘要：Phytoremediation using fast-growing woody plants assisted by plant growth-promoting bacteria (PGPB) on cadmium (Cd)–contaminated sites is considered a promising technique; however, its remediation efficiency is still affected by multiple factors. In this study, the mining areas’ soil conditions were simulated with different Cd addition levels (0, 3, 6, 9?mg?kg?1) in order to investigate the response strategy to Cd stress of fast-growing economic tree species, slash pine (Pinus elliottii), and the effects of inoculation with the PGPB strain Herbaspirillum sp. YTG72 on the physiological activity and Cd accumulation of plants. The main results showed that there were significant (p ?1) compared to non-Cd addition treatment. When the additive amount of Cd increased, the growth of plants was severely inhibited and the content of proline was increased, as well as Cd in plants. Besides, the ratios of K:P, Ca:P, and Mg:P in plants were negatively correlated with the contents of Cd in plants and soils. Inoculation of P. elliottii with the PGPB strain Herbaspirillum sp. YTG72 improved the physiological functions of the plants under Cd stress and activated the antioxidant system, reduced the accumulation of proline, and decreased the ratios of K:P, Ca:P, and Mg:P in plant. More importantly, planting P. elliottii in Cd-contaminated soil could significantly (p ? The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.