Promoted by Institute of Plant Science and Resources, Okayama University
About Plant Stress
植物が受けるストレスには様々なものがあります。地に根を張って生長する植物は移動することができないため、外的環境から受ける多くのストレスから逃げずに上手く対処しなければなりません。これらの植物が持つ環境応答メカニズムに関する研究を、ここでは広義に「植物ストレス科学研究」と呼びます。
PSSネットワークでは、「大気環境」「土壌環境」「環境生物」の３つのストレスに大別し、それらのサブネットを構築してネットワーク活動を進めます。サブネットの構成上、3つのストレスに大別しますが、それぞれが独立するものでなく、相互に関わってネットワーク活動も進めます。
There are various kinds of stress imposed on plants. Most plants are firmly attached with roots in the ground and thus cannot move, so they cannot escape from stress so often present in their external environment. A study on the environmental response mechanisms of plants to stress is referred here as "plant stress research".
In the PSS network, we broadly divide stress into three main categories, "atmospheric or abiotic", "soil environment", and "other organisms or biotic". And in this framework, we also proceed with the network activities. Although roughly divided into three subnets, each part is not independent, but involves mutual interactions, same as we hope to occur among the PSS network members.
PSSネットワークでは、「大気環境」「土壌環境」「環境生物」の３つのストレスに大別し、それらのサブネットを構築してネットワーク活動を進めます。サブネットの構成上、3つのストレスに大別しますが、それぞれが独立するものでなく、相互に関わってネットワーク活動も進めます。
There are various kinds of stress imposed on plants. Most plants are firmly attached with roots in the ground and thus cannot move, so they cannot escape from stress so often present in their external environment. A study on the environmental response mechanisms of plants to stress is referred here as "plant stress research".
In the PSS network, we broadly divide stress into three main categories, "atmospheric or abiotic", "soil environment", and "other organisms or biotic". And in this framework, we also proceed with the network activities. Although roughly divided into three subnets, each part is not independent, but involves mutual interactions, same as we hope to occur among the PSS network members.
ABIOTIC STRESS 大気環境ストレス
植物が地上部で受ける様々なストレスのうち、病害虫等、いわゆる「生物ストレス」によるもの以外を全て扱います。例えば、以下のような研究を想定しています。
There are many stresses that plants receive at the above-ground level, apart from pests. For example, these types of stress are considered:
- 光によるストレス・環境応答および光合成機能
- 高温や低温による植物の障害応答や耐性獲得とそれらに関わる分子機構、耐凍性など
- 大気中の酸素・二酸化炭素分圧、水分などの調節と生体内への影響
- 重力や光などへの屈性と植物の生長
There are many stresses that plants receive at the above-ground level, apart from pests. For example, these types of stress are considered:
- Environmental response to light, and photosynthesis research
- Resistance of plants to high and low temperatures, molecular mechanisms of such resistance, and freezing tolerance
- Oxygen in the atmosphere ·
- Carbon dioxide-related research
- Adjustment to pressure, moisture, etc. and their effects on plant body
- Plant growth responses to gravity, light direction, etc.
SOIL STRESS 土壌環境ストレス
植物が地下部でうける様々なストレスのうち、病害虫など、いわゆる「生物ストレス」によるもの以外を全て扱います。例えば、以下のよう研究を想定しています。
Plant can receive a lot of stress underground... In this research category, we include following research themes:
- 土壌養分の吸収に関する研究
- 酸性土壌などの不良環境に関するストレス応答と金属イオン耐性
- 根からの水分吸収、冠水ストレス応答
Plant can receive a lot of stress underground... In this research category, we include following research themes:
- Absorption of nutrients from soil, mechanisms of uptake
- Stress responses to poor soil environment, such as acidic soils, low nutrient, etc.
- Mechanisms of water uptake by roots, aquaporin research
- Metal ion tolerance in roots
- Flooding stress responses, etc.
BIOTIC STRESS 環境生物ストレス
病原菌類、細菌、ウイルス、マイコバクテリアなどの病原性微生物、害虫などに対する植物の応答機構、および抵抗性について広く「環境生物ストレス」と捉え、それらの作用を様々な手法により扱う研究を対象とします。
Here we include plant response mechanisms and resistance to pathogenic microorganisms, such as pathogenic bacteria, viruses and funghi, and plant responses to insect pests and other competitors (plants, parasitic plants...). We use diverse approaches to understand multiple plant defense mechanisms to generate next genaration of pest resistant crops.
We also consider the effects of beneficial microorganisms on plants, such as growth promoting bacteria, methylotrophs and other commensal microorganisms on plants.
Here we include plant response mechanisms and resistance to pathogenic microorganisms, such as pathogenic bacteria, viruses and funghi, and plant responses to insect pests and other competitors (plants, parasitic plants...). We use diverse approaches to understand multiple plant defense mechanisms to generate next genaration of pest resistant crops.
We also consider the effects of beneficial microorganisms on plants, such as growth promoting bacteria, methylotrophs and other commensal microorganisms on plants.
