Mechanical Signalling in Plant: Perception and Transduction Pathway     

ZHOU Jing  WANG Bo-chu  DUAN Chuan-ren  ZHU Li-qing 《保鲜与加工》2006,(3):112-115

The metabolism and development of plants are controlled through interplay between genetic and environmental cues.For optimal growth plants require the ability to coordinate complex developmental processes and at the same time sense and respond to environmental stimuli.The responses can be divided into three main events: stimulus perception,generation and transmission of a signal,and subsequent changes in downstream biochemical processes.Because of space limitation this review does not provide an exhaustive account of plant signal transduction.Rather,the authors intention is to cover new and important results in this field,including the mechanochemical transform mediated by integrin and integrin-like protein,the change of membrane fluidity respond to stimulus,and the wide accepted transduction pathway of calcium signaling system.The research emphasis and tendency are prospected.  相似文献   

Study on Optimum Design of Rectangular Sedimentation Tanks     

CAI Jin-bang~  ZHU Liang~  DUAN Xiang-bao~ 《保鲜与加工》2005,(6):67-70

In this paper,the flow velocity fields,suspended solids concentration fields and flow-through curves in rectangular sedimentation tanks with different reaction baffles location,inlet horizontal velocity and length height ratio are simulated in detail using a developed mathematical model given in Reference 2.According to the numerical results,the influence of different reaction baffles location,inlet horizontal velocity and length height ratio on the operating efficiency is analyzed.Finally,the rational reaction baffles location,inlet horizontal velocity and length height ratio are presented.  相似文献   

地下热水的来源与补给机制分析——以重庆北温泉为例     

肖琼  沈立成  杨雷 《保鲜与加工》2015,(4):91-103

地下热水的来源研究对地下热水资源量评价和可持续开发利用有重要意义。选取重庆市北温泉作为研究对象,采用水化学分析、D、O同位素以及实时在线监测对其热水来源进行了研究。研究认为：重庆市北温泉泉水为中-低温浅层中性地热水,水化学类型为SO4-Ca型,地下热水的δ 18O值为-8.48‰～-7.09‰,δD值为-55.46‰～-53.26‰,其补给来源为雨水,补给高程为海拔641～1 206 m的岩溶出露区。安装马歇尔槽和CDTP300高分辨率实时在线监测发现：1)地下热水水文地球化学特征在长时间内稳定,体现了稳定的水-岩作用过程;2)北温泉的流量与研究区降雨量呈现出以半年为单位的滞后,雨季偏低,旱季偏高;当场降雨后20 d左右,温泉水的水温和电导率微降,水量增加。地下热水的来源为大气降水,其补给除了长时间长距离的含水层稳定补给外,热水上升过程中受地表水和浅层地下水的补给。  相似文献   

Application of Multivector Algebra in Real Space-time to Set Pair Analysis     

DUAN Shao-guang 《保鲜与加工》2004,(11):66-70

The contact number is an important mathematical tool of systems theory and methods in the monograph Set Pair Analysis and Its Preliminary Applications written by Zhao Keqin for unitizedly processing the uncertainties due to the fuzzy, stochastic, intermediate and information uncomplete about something. The article applies the multivector algebra which is isomorphism with the real Dirac algebra in the real space-time adopted by Venzo de Sabbata to the contact number of set pair analysis, and consequently, the contact number is generalized correspondingly.  相似文献   

Tissue Culture and Rapid Propagation of Actinidia chinensis     

YANG Xiao cheng  WANG Bo chu  YE Zhi yi  DUAN Chuan ren  CHE Xiao yan 《保鲜与加工》2002,(6):75-77

It has been briefly studied and reported that Actinidia chinensis , one of economic woody plants, has been bred with the method of plant tissue culture. Aim at the shortage of traditional plant tissue culture ways which ignored the refinement and transplant of test-tube seedling, it strengthen the study to breeding and management of Actinidia chinensis seedlings before they grow up and become mature seedlings. Through our explore, the transplant survive rate of tissue-culture seedlings attain to about 85%.This study is the improvement to traditional breeding seedling means and it is helpful to the rapid propagation of those economic woody plants.  相似文献   

Tissue Culture and Rapid Propagation of Echinacea Purpurea     

WANG Bo-chu  LIU Wan-qian  DUAN Chuan-ren 《保鲜与加工》2005,(5):120-122

It is a burgeoning application field for the biotechnology that to apply the technique of plant tissue culture breed seedling. The authors study the responses of Echinacea purpurea to different proportion plant growth hormone or auxin through adopting the culture tissue technique on the MS. The integrated seedling of Echinacea purpurea can be cultivated by callus, subculture, differentiation and rhizogenesis. The surviving rate of Echinacea purpurea seedling transplant are improved by appropriate sound stimulation appropriate. Study harvest offers the gist for the large-scale breeding seedling and the officinal resource exploitation of Echinacea purpurea in our country, and avoid some traditional handicap in breeding seedling of Echinacea purpurea, such as the difficult of seed collection, low burgeoning rate, and the disadvantage for large-scale propagation.  相似文献   

Methods and Techniques to Enhance the Production of Secondary Metabolites in Hairy Roots     

ZHANG Guang-qiu  WANG Bo-chu  DUAN Chuan-ren  HU Kai 《保鲜与加工》2005,(6):121-124142

Hairy roots culture is a new means to gain the plant secondary metabolites. How to enhance the production of secondary metabolites in hairy roots becomes a new hotspot recently. The authors summarize recent trends and results about the increase of the production of secondary metabolites in medicinal plant hairy roots. The change of culture conditions and the application of biotechnologies can enhance the production of secondary metabolites in hairy roots.  相似文献   

Converse Illation Method on Optimal Control of Reheating Furnace     

DUAN Ying  LIN Tao  DUAN Wen-ze 《保鲜与加工》2007,(8):21-25

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日光温室茄子冠气温差与环境因子之间的关系研究   总被引：6，自引：0，他引：6  

彭致功  杨培岭  段爱旺  何晖 《华北农学报》2003,18(4):111-113

系统地研究了日光温室内茄子冠气温差的变化规律与环境因子之间的关系,运用回归方法建立了主要气象因子与冠气温差之间的数量关系。深入分析了不同土壤水分条件下日光温室内茄子冠气温差与土壤含水量的关系,并建立了二者之间的相关方程,得出了诊断茄子水分状况的指标。  相似文献   

黄土高原北部垄膜沟植田间集雨高效栽培技术研究   总被引：1，自引：0，他引：1  

DUAN Yu  TUO De-bao  ZHAO Pei-yi  LI Huan-chun Inner Mongolia Academy of Agricultural  Animal Husbandry Sciences  Huhhote  China 《华北农学报》2006,(Z3)

在黄土高原北部,采用起垄覆膜(垄上覆膜种植马铃薯,垄沟种植谷子)的垄沟间作田间集雨补灌栽培并结合增施氮、磷、钾化肥,具有显著的增产、增收效果。该技术可大大提高化肥的增产效果和肥料利用率,有明显的集雨增墒效果,同时采用起垄覆膜种植马铃薯与垄沟种植谷子能够合理利用有限的工程集雨,有利于充分利用有限的降水资源,进行节约化农业经营。  相似文献