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[学术文献 ] Plant secondary metabolites in defense against phytopathogens: Mechanisms, biosynthesis, and applications 进入全文
Physiological and Molecular Plant Pathology 期刊
Plants have evolved elegant defense strategies against biotic and abiotic stresses by principally using the secondary metabolites alkaloids, terpenoids, flavonoids; phenolics, etc. Secondary metabolites (e.g. alkaloids, terpenoids, flavonoids, and phenolics) play roles in constitutive defenses (e.g., tomatine) and induced responses (e.g., phytoalexins), that enable plants effective defense against pathogens and herbivores. This review integrates current information on biosynthesis and ecological roles of secondary metabolites ranging from biotrophic, and hemi-biotrophic to necrotrophic pathogens in the activation of such a metabolic diversity. This present discussion is about the regulation of response via their key signaling molecules, namely jasmonic acid and salicylic acid, and their function from both sides of defense trade-offs. Overview of recent advances in genetic engineering and metabolic engineering approaches for engineering the production of metabolites to replace synthetic agrochemicals sustainably. This review emphasizes the role of secondary metabolites in integrated pest management and sustainable agriculture, despite their potential pharmaceutical applications. In the future, research should address the molecular base of secondary metabolism and open ways for biotechnological tools to develop climate-resilient crops. This review integrates basic concepts of plant defense with an applied biotechnology theme to provide lessons learned on the use of secondary metabolites to promote sustainable agriculture.
[学术文献 ] Novel perspectives on plant behavior 进入全文
Plant Signaling & Behavior 期刊
Research is rapidly advancing in the emerging areas of plant behavior, unveiling novel frontiers in signaling, communication, and cognition. Recent breakthroughs are illuminating the intricate and dynamic nature of plant interactions. In June 2023, members and friends of the Society for Plant Signaling and Behavior convened in Seattle at the University of Washington, greeting each other after a long Covid-imposed isolation and attracting new participants to the field. The symposium was vibrant and refreshing. In part, it was funded by the US National Science Foundation to support attendance and active participation by emerging women scientists from groups underrepresented in science. Symposium participants and others interested were subsequently invited to contribute to this special issue of Plant Signaling and Behavior. The articles presented here range from a critical review of plant neurobiology to studies of inter-plant communication and the intricate interplay among and between plants, pathogens, and herbivores. Importantly, two articles address facets of plant-specific intelligence: cognition that propels complex plant behavior and complex behaviors demonstrating learning and agency.
[学术文献 ] Plant intelligence: history and current trends 进入全文
Theoretical and Experimental Plant Physiology 期刊
Since antiquity, plant life and complexity have aroused the curiosity of many scholars, including aspects of plant intelligence. While historically the topic of intelligence in plants in academia has been approached with scepticism, more recently this matter has gained evidence, especially in popular science literature. Based on a systematic literature review of scientific journals, this work had two objectives: (1) to describe the history and state-of-the-art of the research on plant intelligence; (2) to evaluate whether the academic literature has followed, in quantity and profile, the current profusion of the theme in popular science vehicles. The results showed that the academic production on the subject in scientific journals, although rich in arguments that account for intelligence in plants, is still not very expressive in comparison with the popular science boost in visibility. Such evidence indicates the persistence of academic resistance to the attribution of this trait to plants. Finally, we discuss implications of this trend for science and for human-nature relationships from a philosophical standpoint.
[统计数据 ] Tea Yields from all over World Countries/Regions in 2023 (FAOSTAT) 进入全文
FAO 网站
根据FAOSTAT，最新统计了2023年度全球47个国家/地区的茶叶产量（kg/ha），以及全球茶叶产量总计值，详细数据见表 Tea Yields from all over World Countries/Regions in 2023（FAOSTAT）。
[学术文献 ] Exploring the complex information processes underlying plant behavior 进入全文
Plant Signaling & Behavior 期刊
Newly discovered plant behaviors, linked to historical observations, contemporary technologies, and emerging knowledge of signaling mechanisms, argue that plants utilize complex information processing systems. Plants are goal-oriented in an evolutionary and physiological sense; they demonstrate agency and learning. While most studies on plant plasticity, learning, and memory deal with the responsiveness of individual plants to resource availability and biotics tresses, adaptive information is often perceived from and coordinated with neighboring plants, while competition occurs for limited resources. Based on existing knowledge, technologies, and sustainability principles, climate-smart agricultural practices are now being adopted to enhance crop resilience and productivity. A deeper understanding of the dynamics of plant behavior offers a rich palette of potential amelioration strategies for improving the productivity and health of natural and agricultural ecosystems.
[会议论文 ] Efficient Modeling of Plant Short and Long Term Behavioral Responses to a Stimuli 进入全文
2020 IEEE BIBE 会议
Plant behavior and response to environmental stimuli has tremendous importance in science and agriculture. In particular, a plant's root continuously senses changes in the environment, and responds in ways that optimize dynamically different essential parameters like its stability, and adequate food and water supplies. Some of the plant behavioral changes in response to environmental changes, like water shortage, can be reversible, and after certain "stress" time, the plant can get back to its normal behavioral patterns. In other cases, the plant behavior after the stress stimulus ends, is changed, due to effects on internal mechanisms, facilitating long-term behavioral changes. The main aim of this work is to derive a preliminary physical model and analysis tools to quantify the behavioral changes of a plant in response to a stimuli. To demonstrate the model, we examined, without loss of generality, the change in plant growth rate in response to electrical stimuli. We showed how the suggested plant behavioral model can assist in computational analysis of short and long term plant response to changing stimuli, construct a common baseline for comparison with other stimuli, and derive new quantitative measurements that can be correlated with internal plant mechanism and assist in assessing behavioral plant patterns and in the design of more efficient agricultural technologies
