Plants communication and drafting informational BA
Plants communication and drafting informational BA
批准号:
06650308
负责人:
MIWA Yoshiyuki
金额:
$1.47万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (C)
财政年份:
1994
资助国家:
日本
项目状态:
已结题
起止时间:
1994 至 1995
中文摘要
几乎没有研究从相互关系的角度讨论植物各器官之间或植物群之间的交流。为了研究这一问题,通过考察个体在环境反应和形态发生中是否存在同步现象来研究BA的形成过程。根据申请表中报告的本研究的计划和方法,得到的结果如下5点:1。通过对一组木棉叶片的生物电位变化(交流信号)进行长期测量,在播种地的部分叶片表现出相同的波形。当一些叶子被切除时也会发生这种现象。这表明生物电势的变化是混沌的。在声源刺激下,相关系数降至2.5左右。通过使用一种可以长期测量生物电势(直流信号……更多)变化的系统,我发现树木表现出相似的波浪模式,形成群体。提出了一种新的测量系统,可以测量根周围自组织电场的变化模式。通过这个系统,我研究了用光、重力或障碍物刺激茎或叶是否会改变根部周围的微弱电场。从实验中,我们发现电场模式在所有情况下都是坍缩和重组的。这说明电场是根系与外界环境之间的自主接口,根系产生的信息是根据地面环境进行调整的。通过一个可以长期测量植物器官(叶、根、花瓣等)运动的系统,我同时测量了叶和根的节奏运动。我发现根和叶都表现出合作运动,周期约为2 [h]。另外,当两株植物相邻放置时,两根都以相位差有节奏地生长,以免相互碰撞。根据得到的结果,我考察了BA出现时植物间的交流,并指出了一些关于起草信息BA的知识。少
英文摘要
There has been almost no study made in which communication between each organ of a plant or between plants in a group was discussed from a view point of interrelationship. In order to investigate this problem, the process of BA fomation was researched by investigating whether synchronization phenomenon exists between individuals in environmental response and in morphogenesis or not. According to the plans and methods of this study which were reported in application form, the obtained results are following next 5 points.1. By making a long-term measurement of bio-electric potential changes (AC signals) of kapok leaves in a group, some leaves in seceded place showed same wave patterns. This phenomenon also happens when some leaves were excised. This shows that bio-electric potential changes in chaos. Furthermore, the correlation coefficient abates to about 2.5 when sound stimulation was given.2. By using a system which can make a long-term measurement of bio-electric potential (DC signal … More s) changes, I have found that trees showing similar wave patterns form groups.3.A new measurement system which can measure patterns of changes on electric field self-organized around a root was developed. By this system, I investigated whether feeble electric field around a root changes or not by stimulating a stem or a leave with light, gavity, or obstacle. From experiments, we have found that electric field patterns are collapsed and re-organized in all cases. This suggests that electric field works as the autonomous interface between root and external environment, and roots create informations which were adjusted to environments on ground.4. By a system which can make a long-term measurement of motions of plant organs (leaves, roots, petals, and etc.), I have simultaneously measured rhythmic motions of a leaf and a root. I have found out that both root and leaf showed cooperative motions with period of about 2 [h]. Additionally, when two plants were placed adjacent to each other, both roots grew rhythmically with phase difference to not to collide int each other.5. Based on obtained results, I examined the communication of plants in emergence of BA,and I have indicated some knowledge on drafting informational BA. Less
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依托单位: