内生昆虫病原真菌、亚洲玉米螟和寄主玉米在二氧化碳升高条件下的三方相互作用。

IF 3.8 1区 农林科学 Q1 AGRONOMY
Li Sui, Hui Zhu, Deli Wang, Zhengkun Zhang, Michael J. Bidochka, Larissa Barelli, Yang Lu, Qiyun Li
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引用次数: 0

摘要

背景:由于二氧化碳(CO2)水平的持续上升,农业系统中的害虫生物防治正面临着前所未有的挑战。在这些系统中使用昆虫病原真菌(EPF)正受到越来越多的关注,作为作物内生真菌的EPF具有将害虫控制与提高作物产量相结合的潜力,但人们对二氧化碳浓度升高对这种相互作用的影响知之甚少。在此,研究人员利用玉米(Zea mays)、亚洲玉米螟(Ostrinia furnacalis)和EPF(Beauveria bassiana)来测试O. furnacalis对玉米植株危害的变化,以及玉米的营养状况(碳、氮、磷、钾含量)、生物量和产量:结果:结果表明,在环境二氧化碳浓度下,内生菌 B. bassiana 可减轻 O. furnacalis 幼虫对玉米植株的危害,而在较高的二氧化碳浓度下,这种效果会增强。接种 B. bassiana 能有效抵消高浓度 CO2 对玉米植株的不利影响,将氮含量保持在基线水平(与不接种 B. bassiana 的环境 CO2 条件相当)。在接种 B. bassiana 和升高的 CO2 条件下,玉米的生物量和产量都得到了提高:这一发现为 B. bassiana 作为玉米内生菌的多方面益处提供了关键信息。我们的研究结果凸显了将 EPF 作为内生菌纳入病虫害综合防治战略的巨大潜力,尤其是在二氧化碳浓度升高的情况下。© 2024 作者。害虫管理科学》由 John Wiley & Sons Ltd 代表化学工业协会出版。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Tripartite interactions of an endophytic entomopathogenic fungus, Asian corn borer, and host maize under elevated carbon dioxide

Tripartite interactions of an endophytic entomopathogenic fungus, Asian corn borer, and host maize under elevated carbon dioxide

Tripartite interactions of an endophytic entomopathogenic fungus, Asian corn borer, and host maize under elevated carbon dioxide

BACKGROUND

Biological control of insect pests is encountering an unprecedented challenge in agricultural systems due to the ongoing rise in carbon dioxide (CO2) level. The use of entomopathogenic fungi (EPF) in these systems is gaining increased attention, and EPF as crop endophytes hold the potential for combining insect pest control and yield enhancement of crops, but the effects of increased CO2 concentration on this interaction are poorly understood. Here, the introduction of endophytic EPF was explored as an alternative sustainable management strategy benefiting crops under elevated CO2, using maize (Zea mays), Asian corn borer (Ostrinia furnacalis), and EPF (Beauveria bassiana) to test changes in damage to maize plants from O. furnacalis, and the nutritional status (content of carbon, nitrogen, phosphorus, potassium), biomass, and yield of maize.

RESULTS

The results showed that endophytic B. bassiana could alleviate the damage caused by O. furnacalis larvae for maize plants under ambient CO2 concentration, and this effect was enhanced under higher CO2 concentration. Inoculation with B. bassiana effectively counteracted the adverse impact of elevated CO2 on maize plants by preserving the nitrogen content at its baseline level (comparable with ambient CO2 conditions without B. bassiana). Both simultaneous effects could explain the improvement of biomass and yield of maize under B. bassiana inoculation and elevated CO2.

CONCLUSION

This finding provides key information about the multifaceted benefits of B. bassiana as a maize endophyte. Our results highlight the promising potential of incorporating EPF as endophytes into integrated pest management strategies, particularly under elevated CO2 concentrations. © 2024 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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来源期刊
Pest Management Science
Pest Management Science 农林科学-昆虫学
CiteScore
7.90
自引率
9.80%
发文量
553
审稿时长
4.8 months
期刊介绍: Pest Management Science is the international journal of research and development in crop protection and pest control. Since its launch in 1970, the journal has become the premier forum for papers on the discovery, application, and impact on the environment of products and strategies designed for pest management. Published for SCI by John Wiley & Sons Ltd.
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