Enrichment of microbial taxa after the onset of wheat yellow mosaic disease
文献类型：期刊论文
| 作者 | Wu, Chuanfa; Wang, Fangyan; Ge, Anhui ; Zhang, Haoqing; Chen, Guixian; Deng, Yangwu; Yang, Jian; Chen, Jianping; Ge, Tida
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| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
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| 出版日期 | 2021-10-01 |
| 页码 | - |
| ISSN号 | 1007-662X |
| 关键词 | Air pollution Ethylenediurea (EDU) Hormesis Plant protection Tropospheric ozone (O-3) |
| 英文摘要 | Ground-level ozone (O-3) is a widespread air pollutant causing extensive injuries in plants. However, its effects on perennial energy crops remain poorly understood due to technical difficulties in cultivating fast-growing shrubs for biomass production under O-3 treatment on the field. Here we present the results of a two-year evaluation in the framework of which willow (Salix sachalinensis F. Schmid) shrubs were exposed to ambient (AOZ) or elevated (EOZ) O-3 in two successive growing seasons (2014, 2015) and treated with 0 (EDU0) or 400 mg L-1 (EDU400) ethylenediurea spray in the second growing season. In 2014, EOZ altered the chemical composition of both top young and fallen leaves, and a novel mechanism of decreasing Mg in fallen leaves while highly enriching it in young top leaves was revealed in shrubs exposed to EOZ. In 2015, EDU400 alleviated EOZ-induced decreases in leaf fresh mass to dry mass ratio (FM/DM) and leaf mass per area (LMA). While EDU400 protected against EOZ-induced suppression of the maximum rate at which leaves can fix carbon (A(max)) in O-3-asymptomatic leaves, it did not alleviate EOZ-induced suppression of the maximum rates of carboxylation (V-Cmax) and electron transport (J(max)) and chlorophylls a, b, and a + b in the same type of leaves. In O-3-symptomatic leaves, however, EDU400 alleviated EOZ-induced suppression of chlorophylls a and a + b, indicating different mode of action of EDU between O-3-asymptomatic and O-3-symptomatic leaves. Extensive herbivory occurred only in AOZ-exposed plants, leading to suppressed biomass production, while EOZ also led to a similar suppression of biomass production (EDU0 x EOZ vs. EDU400 x EOZ). In 2016, carry-over effects were also evaluated following cropping and transplantation into new ambient plots. Effects of EOZ in the preceding growing seasons extended to the third growing season in the form of suppressed ratoon biomass production, indicating carry-over effect of EOZ. Although EDU400 protected against EOZ-induced suppression of biomass production when applied in 2015, there was no carry-over effect of EDU in the absence of EDU treatment in 2016. The results of this study provide novel mechanistic understandings of O-3 and EDU modes of action and can enlighten cultivation of willow as energy crop. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46727]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Eco, State Key Lab Urban & Reg Ecol, Environm Sci, Beijing 100085, Peoples R China 2.Ningbo Univ, Inst Plant Virol, State Key Lab Managing Biot & Chem Threats Qual &, Ningbo 315211, Peoples R China 3.Jiangxi Univ Sci & Technol, Sch Resources & Environm Engn, Ganzhou 341000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Chuanfa,Wang, Fangyan,Ge, Anhui,et al. Enrichment of microbial taxa after the onset of wheat yellow mosaic disease[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2021:-. |
| APA | Wu, Chuanfa.,Wang, Fangyan.,Ge, Anhui.,Zhang, Haoqing.,Chen, Guixian.,...&Ge, Tida.(2021).Enrichment of microbial taxa after the onset of wheat yellow mosaic disease.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,-. |
| MLA | Wu, Chuanfa,et al."Enrichment of microbial taxa after the onset of wheat yellow mosaic disease".AGRICULTURE ECOSYSTEMS & ENVIRONMENT (2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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