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本文概括介绍了目前国内外辣椒病毒病、疫病、炭疽病等重要病害诱导抗性研究的主要进展，指出了研究中存在的问题，并对今后诱导抗性研究的发展前景作了预测。 相似文献
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本文从壳寡糖与蔬菜作物抗病性、诱导环境胁迫抗性、种子萌发及幼苗生长的影响,简要概述了其诱导效应及其作用机理,旨在通过综述壳寡糖在诱导蔬菜作物上的抗性研究,以期推进其理论研究与生产实践的融合。 相似文献
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为探寻绿色高效的白粉病防控措施,主要从化学因子、物理因子及生物因子诱导等方面综述了瓜类蔬菜白粉病抗性诱导的研究进展,其中对化学因子诱导途径研究较多,主要包括碳酸氢盐及磷酸盐诱导途径、硅诱导途径、维生素诱导途径及水杨酸诱导途径等;最后,结合3种诱导途径对研究方向进行了讨论和展望。 相似文献
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《果树学报》2010,(5)
诱导植物内在抗性是病害控制的新策略,诱导效应可能与不同品种组成性表达的基础抗性有关。以3个抗性水平不同的品种为材料,研究了苯并噻二唑(BTH)对甜瓜白粉病抗性的诱导效应,以期进一步阐释抗性诱导效应与品种基础抗性的关系。结果显示,BTH诱导甜瓜抗白粉病的效果与品种的基础抗性正相关,对抗病品种的诱导效果高于中抗和感病品种,抗病品种叶片中β-1,3-葡聚糖酶(GLU)和苯丙氨酸解氨酶(PAL)活性增长幅度也较中抗和感病品种大。BTH处理3 d后接种白粉菌,不同抗性水平甜瓜品种叶片中GLU、PAL和多酚氧化酶(PPO)活性均较只接种处理明显上升。叶片超微结构观察显示:乳突结构是寄主对病原菌侵染的一种主动反应,甜瓜抗病品种叶片中乳突结构多呈半圆球型,中抗和感病品种叶片中多呈圆筒型。 相似文献
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蔬菜诱导抗性研究现状 总被引：6，自引：0，他引：6
自50年代初至今对植物诱导抗性研究多数还处于实验阶段,少数已开始在生产上示范应用,如甘薯诱导抗枯萎病在大田应用,防效达88%～93%,产量提高一倍。番茄诱导抗花叶病,柑桔诱导抗速衰病都已在生产上示范应用,取得较好的效果。 从现有的研究材料看,可以推测地球上现有的高等植物可能都具有诱导抗性的潜能。这种潜能能否表达出来决定于能否找到诱导因子,一旦找到诱导因子就能使这种潜能表达出来,使感病的植物表现抗病。它将为植物病害防治开辟一条新的途径。另外,该项研究对揭示植物性状的表达也具有重要意义。 植物诱导抗性研究的 几个关键问… 相似文献
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不同葡萄品种对霜霉病的抗性鉴定及相关生理生化研究 总被引：1，自引：0，他引：1
《果树学报》2016,(2)
【目的】明确不同葡萄品种对霜霉病的抗性,解析葡萄抵御霜霉病菌的相关生理反应及相关信号通路。【方法】采用田间调查、室内测定分析40个葡萄品种对葡萄霜霉病的抗性,研究在葡萄霜霉病菌诱导下,叶片的水杨酸(SA)、过氧化氢(H2O2)含量的变化,PR1、NPR1、Rboh D的表达。【结果】多数品种室内外对霜霉病抗性一致,高抗品种的SA、H2O2较感病品种更快更多量的积累,NPR1、PR1及Rboh D基因在高抗品种中更快更强烈的诱导表达。【结论】SA信号通路、活性氧通路参与了葡萄对霜霉病的抗性。 相似文献
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Clarifying Integrative Research Concepts in Landscape Ecology 总被引：2，自引：2，他引：0
Integrative research approaches are intensely discussed in landscape ecology, in academia and in research policy. However,
confusion over the terminology hampers communication. Many current landscape ecological research projects have difficulties
to agree on a common understanding of the core concepts associated with different forms of integrative research. This is also
evidenced by the lack of discussion of integrative research concepts in published papers. This hinders integration in research
projects and makes the comparison and evaluation of the outcomes of different research concepts impossible. This paper discusses
and defines the meanings of interdisciplinary and transdisciplinary (= integrative) research approaches to ease discourse
on their application in landscape ecological research. It reviews definitions of the concepts found in the research literature
and develops definitions of integrative and associated research concepts (disciplinarity, multidisciplinarity, interdisciplinarity
and transdisciplinarity) based on their degree of disciplinary integration and involvement of non-academics. Integrative concepts
are viewed as a continuum rather than as fixed categories. The paper discusses the need to develop integrative theory and
methods and argues that we should be more explicit when using integrative research concepts in project proposals, project
work and publications. Finally, the paper reflects on the ongoing discussion in landscape ecology concerning whether it is
developing from an integrative research field towards a discipline in its own right. 相似文献
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核桃细菌性黑斑病研究进展 总被引：3，自引：0，他引：3
该文综述了核桃细菌性黑斑病的研究进展,包括核桃细菌性黑斑病的危害症状、病原、侵染循环、发病条件、检测技术、预测预报技术和防治方法等方面的成就和发展趋势。并介绍了核桃细菌性黑斑病在中国的发生情况和研究进展。 相似文献
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Globally, rapid urbanisation has substantially reduced the amount of viable agricultural land – a food security issue. Food security is bringing a renewed scholarly interest in community gardens. This paper reviews the extent of English academic literature on community gardens, including: who has undertaken the research, where it has been published, the geographical location of the gardens studied, and the various methods used to undertake the research. The characteristics of the community gardens are summarised, including what types of plants are grown, who is involved in the gardens, and who owns the land. The motivations, benefits and limitations of community gardening are also examined. Finally, potential directions for research into community gardens are highlighted. Academic literature on community gardens is dominated by studies investigating gardens in low-income areas with diverse cultural backgrounds. Research based in cities in the USA also dominates the literature. Scholars from a wide diversity of disciplines have examined community gardens but research is mostly concentrated in the social sciences. The natural sciences are notably under-represented, yet they have much to offer including assessing gardening practices to better understand the agro-biodiversity conservation potential of community gardens. 相似文献