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عنوان دوره: پانزدهمین کنگره زراعت و اصلاح نباتات ایران
نویسندگان
1Research Institute of Forests and Rangelands in Iran
2Ramin Agriculture and Natural Resources University of Khozestan, Ahwaz, Iran
3Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh, Iran
چکیده
کلیدواژه ها
Title
Effectof waterdeficit stress on secondary metabolites profileof some Iranian
medicinal plants from Lamiaceae family
Authors
Abstract
Environmental stresses such as high and low temperature, salinity, water deficit, toxic metal ion concentration,
UV radiation and pathogen infection are potentially harmful to the plants. In arid and semi-arid regions of the
world, such as Iran, water stress is one of the most serious problems that can affect crop productivity and
secondary metabolism. It can limit theplant growth and productivity through different mechanisms. Water
deficiency not only reduces plant water content but also decrease cell turgor and plant growth, while it also
generates harmful reactive oxygen species (ROS) such as superoxide radicals, single oxygen, hydroxyl radicals,
and hydrogen peroxide. Due to limited rainfall in the Middle Eastern countries, such as Iran, the water
availability is becoming the major challenge in production of herbs and other crops. As native medicinal plants
are valuable crops in Iran and neighboring countries, understanding the dynamics of water stress on the chemical
composition and productivity of their essential oil is very important. This article evaluated the effect of
prolonged water stress on plant growth, essential oil content and constituents of some herbal medicines
whicharerich source of essential oil (i.e., high yields) and phenolic monoterpenes.
UV radiation and pathogen infection are potentially harmful to the plants. In arid and semi-arid regions of the
world, such as Iran, water stress is one of the most serious problems that can affect crop productivity and
secondary metabolism. It can limit theplant growth and productivity through different mechanisms. Water
deficiency not only reduces plant water content but also decrease cell turgor and plant growth, while it also
generates harmful reactive oxygen species (ROS) such as superoxide radicals, single oxygen, hydroxyl radicals,
and hydrogen peroxide. Due to limited rainfall in the Middle Eastern countries, such as Iran, the water
availability is becoming the major challenge in production of herbs and other crops. As native medicinal plants
are valuable crops in Iran and neighboring countries, understanding the dynamics of water stress on the chemical
composition and productivity of their essential oil is very important. This article evaluated the effect of
prolonged water stress on plant growth, essential oil content and constituents of some herbal medicines
whicharerich source of essential oil (i.e., high yields) and phenolic monoterpenes.
Keywords
Key words: water deficit stress, Secondary metabolites, Iranian medicinal plants, Lamiaceae family