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[学术文献 ] Botanic Signal Monitor: Advanced Wearable Sensor for Plant Health Analysis 进入全文
Advanced Functional Materials 期刊
Recently, the decline in plant species, loss of crop yields, and reduced efficacy of herbal medicines due to environmental issues and biotic stresses have garnered significant attention. Developing smart devices for plant health monitoring is essential for early intervention, timely adjustment of the growing environment to combat environmental and pest stresses, and to promote robust plant growth, biodiversity, ecological balance, and sustainable agriculture. Flexible wearable sensors with the advantages of superior shape adaptation, excellent biocompatibility, and high integration have emerged as one of the most promising avenues for plant health monitoring. Here, recent advances in flexible wearable sensors based on monitoring different types of plant signals are summarized. The discussion focuses on the constituent materials, fabrication methods, and sensing mechanisms of each type of wearable sensor. In addition, the challenges and potential strategies are summarized for plant sensing development, including energy supply, materials and preparation, signal transmission, and data analysis.
[学术文献 ] Intercropping with aromatic plants enhances natural enemy communities facilitating pest suppression in tea plantations 进入全文
Arthropod-Plant Interactions 期刊
Habitat management have received considerable attention in agricultural systems for the promotion of successful pest management. The intercropping of aromatic plants in plantation crops can result in reduced pest abundance as a repellent directly and/or increasing natural enemy abundance thereby reducing pest abundance indirectly. To promote the management of pests in tea plantations, we intercropped three aromatic plants, Tagetes patula (L.) (Asteraceae), Tagetes erecta (L.) (Asteraceae), and Perilla frutescens (L.) Britton (Lamiaceae) to assess their impact on the dynamics of species abundance, richness, and diversity of arthropod pests and their natural enemies over 2 years. Results showed that aromatic plants decreased the abundance of pest, with concomitant increases in predator (especially spiders and ladybirds) and parasitoid (Ichneumonidae spp.) abundance, creating a stable low abundance of pests in tea plantations. The ratio of natural enemies to pests in fields intercropped with T. erecta was fourfold to sevenfold higher than observed in naturally tilled plots. Aromatic plants also had a significant positive effect on species richness and evenness of natural enemies. The T. patula and T. erecta intercropped treatments showed significantly higher pest evenness and higher natural enemy diversity than that in clean tillage. Our study indicated that biocontrol via habitat management with intercropping aromatic plants could become a recommended practice for pest management in tea plantations.
[学术文献 ] Flowering Ocimum gratissimum intercropped in tea plantations attracts and reduces Apolygus lucorum populations 进入全文
Pest Management Science 期刊
BACKGROUND Apolygus lucorum is one of the most important piercing-sucking insect pests of the tea plant In this study, we assessed the attractiveness of basil plants to A. lucorum and the effectiveness of Ocimum gratissimum L. in the control of A. lucorum. The control efficiency of main volatile chemicals emitted from O. gratissimum flowers was also evaluated. RESULTS Among seven basil varieties, O. gratissimum was more attractive to A. lucorum adults and was selected as a trap plant to assess its attractiveness to A. lucorum and effects on natural enemies in tea plantations. The population density of A. lucorum on trap strips of O. gratissimum in tea plantations was significantly higher than that on tea at 10–20 m away from the trap strips. Intercropping O. gratissimum with tea plants, at high-density significantly reduced A. lucorum population levels. Eucalyptol, limonene, β-ocimene, and linalool were the four dominant components in the O. gratissimum flower volatiles, and their emissions showed a gradual upward trend over the sampling period. Olfactometer assays indicated that eucalyptol and dodecane showed attraction to A. lucorum. High numbers of A. lucorum were recorded on limonene, eucalyptol, and myrcene-baited yellow sticky traps in field trials in which 11 dominant volatiles emitted by O. gratissimum flowers were evaluated. CONCLUSION Our research indicated that the aromatic plant O. gratissimum and its volatiles could attract A. lucorum and planting O. gratissimum has the potential as a pest biocontrol method to manipulate A. lucorum populations in tea plantations.
[统计数据 ] Tea Production Quantity from all over World Countries /Regions in 2022 (FAOSTAT) 进入全文
FAO 网站
根据FAOSTAT，最新统计了2022年度全球47个国家/地区的茶叶总产量（ton），以及全球茶叶总产量总计值，详细数据见表 Tea Production Quantity from all over World Countries/Regions in 2022（FAOSTAT）。
[学术文献 ] Damage-Associated Molecular Patterns and Systemic Signaling 进入全文
Phytopathology 期刊
Cellular damage inflicted by wounding, pathogen infection, and herbivory releases a variety of host-derived metabolites, degraded structural components, and peptides into the extracellular space that act as alarm signals when perceived by adjacent cells. These so-called damage-associated molecular patterns (DAMPs) function through plasma membrane localized pattern recognition receptors to regulate wound and immune responses. In plants, DAMPs act as elicitors themselves, often inducing immune outputs such as calcium influx, reactive oxygen species generation, defense gene expression, and phytohormone signaling. Consequently, DAMP perception results in a priming effect that enhances resistance against subsequent pathogen infections. Alongside their established function in local tissues, recent evidence supports a critical role of DAMP signaling in generation and/or amplification of mobile signals that induce systemic immune priming. Here, we summarize the identity, signaling, and synergy of proposed and established plant DAMPs, with a focus on those with published roles in systemic signaling.
[相关专利 ] Plant biotic and abiotic stress meter 进入全文
印度专利
Our Invention "Plant biotic and abiotic stress meter" is a because they are sessile, unlike other living forms, plants are subject to extreme biotic and abiotic stressors. Plants have developed several effective defense mechanisms that depend on a variety of extrinsic elements like the intensity and duration of the shocks as well as a number of internal components including genotypic and phenotypic constitutions and developmental conditions. In order to create stress signal molecules and activate stress-protective mechanisms, stress management makes use of molecular and biochemical level controls, competency, and speed at which a stress signal is recognized and conveyed. Numerous adaptive responses to biotic and abiotic challenges are regulated by the plants' well-coordinated activity at the morphological, physiological, biochemical, and molecular levels. It has been common practice to genetically modify signaling networks in order to increase plant production under stressful environments. Utilizing cutting-edge biotechnology will make it possible to continue farming in a sustainable way. Two reviews and four research papers covering physiological, molecular, and genomic control as well as signaling networks pertaining to plant responses to biotic and abiotic stimuli are included in this special issue.
