不同腐殖质浓度下玉米对马豆感染的生理反应

Lucila Méndez-Morán, Iván David Meza-Canales, Celia Robles-Murguía, América Loza-Llamas
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引用次数: 0

摘要

植物发育过程中的可利用资源,有时由于植物在生理防御病原体攻击过程中所使用的能量而受到限制。本研究的主要内容是分析不同可持续施肥系统(如蚯蚓-腐殖质)下玉米植株发育的生理特征,以及它们与玉米对黑穗病(Ustilago maydis)感染反应的关系。黑穗病是一种引起玉米普通煤病的生物营养真菌。在温室条件下,以不同腐殖质/土壤比例的玉米幼苗接种麦氏菌(T1),不接种麦氏菌作为对照(T0)。T1处理对植株的生理和生长均有显著影响,处理效果最好,为25%。侵染后,植株生长缓慢,光合活性降低,但腐殖质的存在部分抵消了真菌侵染的影响。高浓度腐殖质对植物生长有不利影响。在未来,该领域的研究将有助于推断这些农业实践在植物-真菌反应中的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Respuestas fisiológicas de Zea mays durante la infección por Ustilago maydis bajo diferentes concentraciones de humus en suelo
The available resources during plant development, sometimes plant can be limited due to energy used during physiological plant defense to pathogens attacks. The main of this work was the physiological analysis of Zea mays plants development under different sustainable fertilization systems, as the earthworm-humus, and their relation with the response to Ustilago maydis infection, a biotrophyc fungus that causes the disease known as common coal or cuitlacoche in corn. Mize seedlings developed with different % of humus/soil under greenhouse conditions were inoculated with U. maydis (T1), and plants not inoculated as control (T0). Physiological and growth measurements in T1 showed a significant effect on the plant, the best was a 25%. After infection, the plants growth was lower as a result in decrease in photosynthesis activity, however, the presence of humus partially counteracts the fungus infection. High concentrations of humus reflected a negative effect on plant growth. In the future, the studies in the field will serve to deduce the importance of these agricultural practices in plant-fungus responses.
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