Study on Plant Radiation Signal Transduction for Human Self-Healing

We selected 450 patients with chronic and difficult diseases as receptors, and selected edible and medicinal plant combinations as biological signal donors, and randomly participated in a new experiment. After adjusting the patient’s biological field, the compensating bio information energy (CBE) high-tech is applied to transmit the signal of plant radiation to the patient’s body. The physical therapy of this health care mode has the characteristics of no contact, no drugs, no intervention, no toxic side effects, no pain, and no electromagnetic radiation and so on. Before and after the experiment, the main function test, cell function, cell biochemistry and body temperature of each patient were used for the same body control and data statistical analysis, and then the comprehensive integration method was used to evaluate the effect. We found that after 1 - 4 courses of treatment (7 - 28 dx 2h), the potential disease risk of patients was significantly reduced, the relevant medical indicators improved rapidly, and the cell function and symptoms improved simultaneously. The effective rate was up to 90%, the significant efficiency was up to 57%. This experiment shows that this new physical therapy can treat both symptoms and root causes, make chronic and difficult diseases self-healing and rehabilitation, and has no ethical problems. It also shows that information on plant health can play an important role in reversing cell aging and restoring cell function. Therefore, it opens up a new field of natural therapy, which can be called cell information therapy.

Crop plant signaling for real-time plant identification in smart farm: A systematic review and new concept in artificial intelligence for automated weed control

The continued emergence of herbicide-resistant weeds and the increasing labor costs are threatening the ability of growers to manage weeds and maintain profits.The smart farm with the advantage of non-invasive and high-efficiency operation plays an important role in increasing the sustainability of agricultural system as it can optimize crop inputs such as herbicides while preserving resources including soil and water.An automatic weed control system requires a sensing subsystem capable of detecting and distinguishing crop plants from weeds.The overlapping plants remain a challenge for successful detection of weeds.Crop plant signaling is a new robot-plant interaction technique that allows the visualization of exogenous fluorescent signals applied to crop plants for crop/weed identification.Based on all published articles in the leading edge of knowledge,a comprehensive review of the mushrooming crop plant signaling for discriminations of weeds and crops is highlighted.The discussion outlines the significant progress that has been made in developing new and more robust automated systems along with the current challenges and future prospects.This paper details the promise of crop plant signaling for accurate and automated plant recognitions in cropping systems.There is no doubt that this review is of great significance to scholars in related research field to study the solutions to real-time weed control.

Magnesium deficiency in plants:An urgent problem

Although magnesium(Mg) is one of the most important nutrients, involved in many enzyme activities and the structural stabilization of tissues, its importance as a macronutrient ion has been overlooked in recent decades by botanists and agriculturists, who did not regard Mg deficiency(MGD) in plants as a severe health problem. However, recent studies have shown,surprisingly, that Mg contents in historical cereal seeds have markedly declined over time, and two thirds of people surveyed in developed countries received less than their minimum daily Mg requirement. Thus, the mechanisms of response to MGD and ways to increase Mg contents in plants are two urgent practical problems. In this review, we discuss several aspects of MGD in plants, including phenotypic and physiological changes, cell Mg2+homeostasis control by Mg2+transporters, MGD signaling, interactions between Mg2+and other ions, and roles of Mg2+in plant secondary metabolism. Our aim is to improve understanding of the influence of MGD on plant growth and development and to advance crop breeding for Mg enrichment.

Interplay between nitric oxide and sulfur assimilation in salt tolerance in plants

Nitric oxide(NO),a versatile molecule,plays multiple roles in plant growth and development and is a key signaling molecule in plant response to abiotic stress.Nutrient management strategy is critical for abiotic stress alleviation in plants.Sulfur(S) is important under stress conditions,as its assimilatory products neutralize the imbalances in cells created by excessive generation of reactive oxygen species(ROS).NO abates the harmful effects of ROS by enhancing antioxidant enzymes,stimulating S assimilation,and reacting with other target molecules,and regulates the expression of various stress-responsive genes under salt stress.This review focuses on the role of NO and S in responses of plants to salt stress,and describes the crosstalk between NO and S assimilation in salt tolerance.The regulation of NO and/or S assimilation using molecular biology tools may help crops to withstand salinity stress.

Diarylheptanoid-myricanone isolated from ethanolic extract of Myrica cerifera shows anticancer effects on HeLa and PC3 cell lines:signalling pathway and drug-DNA interaction

OBJECTIVE： To test if myricanone （02H2405）, a cyclic diarylheptanoid, has anticancer effects on two different cancer cell lines HeLa and PC3. The present study was conducted with a note on the drug-DNA interaction and apoptotic signalling pathway. METHODS： Several studies like cytotoxicity, nuclear damage, annexin-V-fluorescein isothiocyanate （FITC）/propidium iodide （PI）-Iabelled apoptotic assay and cell cycle arrest, immunoblot and reverse transcriptase-polymerase chain reaction （RT-PCR） were used following standard protocols. Circular dichroism （CD） spectroscopy was also done to evaluate whether myricanone effectively interacted with DNA to bring about conformational changes that could strongly inhibit the cancer cell proliferation. RESULTS： Myricanone showed a greater cytotoxic effect on PC3 cells than on HeLa cells. Myricanone promoted G0/G arrest in HeLa cells and S phase arrest in PC3 cells. Nuclear condensation and annexin V-FITC/PI studies revealed that myricanone promoted apoptotic cell death. CD spectroscopic data indicated that myricanone had an interaction with calf thymus DNA that changed DNA structural conformation. RT-PCR and immunoblot studies revealed that myricanone activated the apoptotic signalling cascades through down-regulation of transcription factors like nuclear factor-KB （NF-KB） （p65）, and signal transducers and activators of transcription 3 （STAT3）; cell cycle regulators like cyclin D1, and survivin and other signal proteins like Bcl-2 and up-regulation of Bax, caspase-9 and caspase-3. CONCLUSION： Myricanone induced apoptosis in both types of cancer cells by triggering caspase activation, and suppression of cell proliferation by down-regulation of NF-KB and STAT3 signalling cascades, which makes it a suitable candidate for possible use in the formulation of therapeutic alent for combatin cancer.

Mutual Information Flow between Beneficial Microorganisms and the Roots of Host Plants Determined the Bio-Functions of Biofertilizers

Modern agriculture is facing new challenges in which ecological and molecular approaches are being integrated to achieve higher crop yields while minimizing negative impacts on the environment. The application of biofertilzers could meet this requirement. Biofertilizer is a natural organic fertilizer that helps to provide all the nutrients required by the plants and helps to increase the quality of the soil with a natural microorganism environment. This paper reviewed the types of biofertilzers, the biological basic of biofertilizers in plant growth promotion. This paper also assayed the bidirectional information exchange between plant-microbes in rhizoshpere and the signal pathway of plant growth- promoting rhizobacteria (PGPR) and plant growth-promoting fungi (PGPF) in the course of plant infection. At last, the challenges of the application and the promising future of biofertilizers were also discussed.

植物侧枝发育的遗传基础及激素、代谢与环境调控

植株形态的多样性有利于植物适应环境,而侧枝发育是株型的决定因素之一。侧枝发育与产品器官形成密切相关,也会影响光合产物的分配,以及产量和品质。侧枝的形成包括腋生分生组织起始、侧芽的活化和侧芽持续生长等不同阶段。这些过程受到遗传、激素、代谢和环境等方面的共同调控。文章总结了腋生分生组织形成及侧芽活化过程中的关键转录因子及其作用机制,不同植物激素的功能、信号途径和相互作用,以及糖信号和光环境如何通过激素信号网络调控侧枝发育,并对生物钟和表观遗传修饰在侧枝发育中的作用,以及利用基因编辑和环境控制等调控作物株型进行了展望。

基于磁巴克豪森效应的P92钢热老化检测仪器设计

针对火电厂锅炉和主蒸汽管道用钢——P92钢在服役时的热老化程度检测,以HDSP-SUPER 28335开发板为核心研制了一套基于MBN效应的检测仪器,该仪器具有激励信号的产生,MBN信号的采集、处理、显示及存储功能,且灵敏度高、功能全面,可以用于试验研究;针对不同钢种对激励信号敏感程度不同的问题,开展了对于标准P92钢MBN信号检测适用激励信号的试验研究,根据激励信号幅值与MBN信号均方根值的变化关系确定了激励信号的幅值,根据不同激励信号频率产生的MBN信号的波形效果选择了激励信号的频率。

荫蔽环境下植物生理形态及光响应机制研究进展

光照是影响植物生长发育的重要环境因素之一。在农业生产中利用提高作物光合效率来提升其产量与品质具有重要的科学意义和应用价值。在密集的植物群落中,由于上层植被的遮盖,下层植物所获得的光能较少,所以下层植物需要竞争更多光能来维持生长。植物有2种对策获取更多光能,即避荫反应和耐荫反应。目前,对避荫反应的研究较为透彻,但对耐荫反应还缺乏深入研究。综述了荫蔽环境下阳生植物通过伸长下胚轴、叶柄与茎等生理形态改变来适应较低光照水平,同时阴生植物通过展现出促进碳的获得能力、具有较低的表型可塑性和提高对胁迫的抗逆能力等耐荫特征来应对有限的光照条件。结合阳生植物通过激素与光信号通路相互作用来响应弱光环境的避荫反应机制,探讨了在荫蔽环境下阴生植物一方面通过激活拮抗因子抑制避荫反应,另一方面通过提高耐荫反应基因转录活性来增强弱光适应性的耐荫反应机制,为不同植物响应弱光环境机制的研究提供参考,同时为提高植物光能利用效率、培育高光效优良作物品种及构建高效森林生态系统提供有效途径。

构网型新能源场站环流产生机理研究

为分析构网型新能源场站间环流产生机理,采用2个构网型新能源场站并联输出低频交流电到二极管整流单元作为建模场景。首先分析环流表达式得到影响环流的电气参数,并将其划分为大信号环流和小信号环流。其中大信号环流包含电压幅值、相位以及输出阻抗不平衡3种场景,小信号包含载波相位、死区以及三相滤波电感不平衡3种场景。然后对6种场景下的环流进行数学分析以得到每种场景下环流特点,最后在Matlab/Simulink进行仿真实验验证理论分析中6种场景下的环流特点。

植物挥发性有机化合物在环境信息交流中的作用研究进展

植物挥发性有机化合物(biogenic volatile organic compounds, BVOCs)是参与植物生长发育的重要次生代谢产物,在抵御生物和非生物胁迫方面具有重要作用。但是由于种类多样和合成复杂,目前人们对BVOCs的认知往往集中在基础生理水平研究,缺乏对其在环境信息交流中作用的宏观概括。基于此,本文从BVOCs信息交流功能的角度,简要概述了BVOCs在植物内部、外部(植物-植物、植物-食草动物、植物-病原体、植物-授粉者)的生物信息交流及其感知机制的研究现状,并对其今后的研究方向进行了展望,提出要将实验环境从室内转向田间、深入研究BVOCs感知系统、利用分子生物学技术手段定向进化使BVOCs相关基因选择性表达,旨在为BVOCs的信息交流功能探索、植物释放和接收BVOCs的感知系统研究以及BVOCs在农业生产上的应用提供科学依据。

木本植物形成层活动的分子调控机制

维管形成层位于木质部和韧皮部之间,负责诸多生长和发育过程,在木材生产上也起重要作用。开展木本植物形成层活动的内部分子机制研究,对木本植物径向生长和林木生物量的增加具有重要的理论价值。深度成像结合基因表达分析技术是一种前沿研究方向,数学建模和仿真结合实时成像在模拟形成层生长和潜在的分子过程中有重要应用前景。基于该技术,总结了当前形成层活动分子层面的部分代表性成果,并对未来研究提出展望。目前植物形成层活动的分子研究主要集中在:(1)形成层活动受到植物激素信号的调控;(2)转录因子、肽受体信号调控形成层活动;(3)形成层活动受到受体激酶信号的调控。主要结论为:WOX4、WOX14、HB4、HB7、HB8、ANT等正向调控树木形成层活动,可作为木材增粗育种转基因的首选。未来通过计算机模型剖析形成层内细胞间通信联系,能够更全面地解析木本植物维管形成层发育分子机制。

光调控植物种子萌发分子机制研究进展

萌发是种子植物进入农业生态系统的重要发育阶段。对于需光类种子,光是调控其萌发最重要的环境信号因子之一,红光促进而远红光抑制种子萌发。光敏色素是调控种子萌发的主要光受体。活化的光敏色素诱导萌发主效抑制因子PIF1发生蛋白降解,调节赤霉素和脱落酸代谢和信号途径相关基因的表达,从而促进种子的萌发。同时,一系列的表观遗传因子通过改变染色质结构,动态调节萌发相关基因的表达从而影响种子的萌发进程。该论文重点论述了光调控种子萌发的转录及表观遗传机制研究进展,并对其在农业生产中的应用进行了展望。

植物根际促生菌:作用机制与未来

能够促进植物生长的植物根际细菌统称为植物根际促生菌(PGPR)。PGPR的应用可以减少农药化肥的使用,有助于农业可持续性发展。过去二十多年中,围绕PGPR功能与作用机理相关的理论与应用研究取得了显著进展。本文旨在总结PGPR的促生与生防机制,重点探讨PGPR在参与植物营养元素的改善与摄取、产生植物激素、分泌信号小分子、合成挥发性有机化合物促进植物生长以及合成抗生素类物质拮抗植物病原菌五个方面的生物学功能,并探讨了PGPR在基础与应用两方面的后续研究方向,以期为未来PGPR相关研究提供理论参考。

植物激素水杨酸:生物合成、信号转导与运输

水杨酸是一种重要的植物激素,其不仅参与调节植物生长发育的多个方面,并且在植物抵抗生物和非生物胁迫中也发挥着重要作用。近年来,对于水杨酸生物合成和信号转导的相关研究取得重大进展,水杨酸生物合成的异分支酸合酶和苯丙氨酸解氨酶代谢途径及其多个步骤得到进一步的完善;明确了NPR1及其同源蛋白NPR3、NPR4是植物中水杨酸的真正受体;对NPR类蛋白的结构进行解析等。该文对水杨酸的生物合成、信号转导和运输的相关研究进行综述。

浅析统调电厂NCS系统全厂事故总信号的设计与实现

从统调电厂NCS系统对厂内信息进行收集筛选并合成事故总信号和保护信号出发,介绍了全厂事故总信号设计思路和逻辑实现方法,对可靠性较低的现场提出了解决方案,为事故总信号及人工停机信号的操作增加了安全性,提高了系统运行的稳定性。

基于多尺度特征融合的光伏电站火灾信号智能感知系统

火灾信号感知是光伏电站安全监测中必不可少的一个环节,感知结果是光伏电站火灾管控的重要依据。现行系统在实际应用中错误感知比例比较高,因此,文章提出基于多尺度特征融合的光伏电站火灾信号智能感知系统。在系统硬件方面对烟雾传感器、温度传感器、报警器进行选型与设计;在系统软件方面采用最大最小值法对信号进行标准化处理,通过对火灾信号进行多尺度特征融合感知,实现系统设计。经实验证明,所设计系统对火灾信号错误感知比例不超过1%,在光伏电站安全监测领域具有良好的应用前景。

核燃料后处理厂音叉式废树脂界面开关测量系统设计

为适应核燃料后处理厂放射性废树脂界面实时监测需要,设计了音叉式废树脂界面开关测量装置,采用分体式管道叉传感器的废树脂界面信号测量方法,达到了实时监测的目的。现场应用测试表明,音叉式废树脂界面开关可以实现废树脂界面信号的检测,并具有测量精度高、耐辐射的特点,可在核燃料后处理厂中推广和应用。

谷氨酸受体蛋白调控植物生长与胁迫应答的研究进展

植物谷氨酸受体(glutamate receptor-like,GLRs)是动物离子型谷氨酸受体(inotropic glutamate receptors,iGluRs)的同源蛋白,在开花植物中具有多个拷贝,常以功能冗余的基因家族形式共同调节植物生长发育和逆境应答过程。GLRs在植物中发挥作用的机制与其动物同源蛋白既有类似之处,但又表现出植物特异性。iGluRs在哺乳动物的神经系统中发挥重要作用。在iGluRs介导的神经传导中,由突触前膜释放的神经递质识别并结合突触后膜的iGluRs,iGluRs介导的阳离子内流引起突触后膜的去极化,形成动作电位的传递,构成神经传导的基础。过去20多年的研究发现,植物GLRs也可以作为离子通道蛋白,通过调节跨膜离子流行使功能。本文系统综述了植物谷氨酸受体的蛋白结构和演化特征,并对已报道的重要功能位点进行阐释;总结了近些年来对植物谷氨酸受体蛋白在植物生长发育不同时期,以及多种生物和非生物逆境应答中的功能的研究进展,并比较了其与动物iGluRs作用机制的异同;提出并梳理了该领域仍待解决的重要科学问题;最后展望了该蛋白家族在作物耐逆育种中的重要应用前景和价值,以期为改良作物耐逆性状提供线索。

松针提取液对茶树生长和虫害防治的影响机制

为探究松针提取液对茶树生长和虫害防治的影响机制,以喷施松针提取液和无菌水的茶树为材料进行比较实验,并进行转录组和代谢组学联合分析,解析其内在机制。结果表明,松针提取液能够促进茶树生长,提高茶树的发芽密度和叶片的叶绿素相对含量,提高茶叶产量,且不降低茶叶的品质。在这一过程中,AP2/ERF转录因子下调表达,乙烯信号途径发挥了重要的负调节作用。茶园喷施松针提取液不影响茶园节肢动物的群落结构,且对螨类和茶小绿叶蝉有一定的防治效果。转录组和代谢组联合分析表明,松针提取液提高茶树抗虫能力可能是由于激活了茶树的多酚类和磷脂类的代谢途径,相应代谢物质的含量显著提高,茶树抗氧化、清除自由基的能力提高,从而提高了茶树的抗逆性。研究结果可为天然植物抗逆性诱导剂的开发利用提供依据。