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Microorganisms dewlling ina rice field as a teaching material for life science Education

稻田中的微生物作为生命科学教育的教材

基本信息

批准号：
04680279
负责人：
MIKAMI Kazuyuki
金额：
$ 1.6万
依托单位：
Miyagi University of Enducation
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04680279/
关键词：
Rice field Microorganism Teaching materials for biology Environment Food chain Biological Education 生物と環境

项目摘要

1. Species of microorgamisms were investigated in rice fields. Many kinds of microorganisms were found in rice fields regardless its localization. Their biota was not much different among rice fields. This is partly because the environment of rice fields is controlled well to cultivate rice plant and resembles each other. We obtained also many kinds of small Annelida and Arthropoda from the soil even during drying seasons. We may conclude that rice fields offer many teaching materials for lefe science education and play an important role for environmental education.2. For cutivating phyto-microorganisms, a simple method was developed by usage of gardeming goods (soil, manure, etc.). The optimal condition for cutivating Volvox collected from a rice field was studied. Moreover, the method was applicable to others, such as Blue green algae, green algae Closterium and so on. For cultivating ciliates, some goods such as mineral water and nutrient s purchasable from eonvenience stores were found to be useful to prepare their culture medium.3. Some of the microorganisms have suitable characters as a live teaching material for life science education and environmental education in the secondary school. One of them is a ciliate Dileptus sp. which has some good characteristics for understanding ecosystem in a rice field.

1. 对稻田微生物种类进行了调查。稻田中微生物种类繁多，不受地域限制。稻田间的生物区系差异不大。这部分是因为稻田的环境控制得很好，适合种植水稻，而且彼此相似。即使在干旱季节，我们也从土壤中获得了许多种类的小环节动物和节肢动物。我们可以得出结论，稻田为生命科学教育提供了许多教材，并在环境教育中发挥了重要作用。为培养植物微生物，开发了一种利用园艺品（土壤、粪肥等）培养植物微生物的简便方法。研究了稻田收集的水藻的最佳栽培条件。该方法也适用于其他品种，如蓝藻、绿藻Closterium等。为了培养纤毛虫，人们发现从便利店买到的矿泉水和营养品等物品可以用来制备纤毛虫的培养基。有些微生物适合作为中学生命科学教育和环境教育的现场教材。其中有一种纤毛虫Dileptus sp.，它对了解稻田生态系统有很好的特征。