The process of nutrient retranslocation from plant leaves during senescence subsequently affects both plant growth and soil nutrient cycling; changes in either of these could potentially feed back to climate change. Although elemental nutrient resorption has been shown to respond modestly to temperature and precipitation, we know remarkably little about the influence of increasing intensities o...

Short-term effects of ozone (O(3)) on phyllosphere fungi were studied by examining fungal populations from leaves of giant sequoia (Sequoiadendron giganteum (Lindl.) Buchholz) and California black oak (Quercus kelloggii Newb.). Chronic effects of both O(3) and sulfur dioxide (SO(2)) were studied by isolating fungi from leaves of mature Valencia orange (Citrus sinensis L.) trees. In this chronic...

Cork oak (Quercus suber L.) has high economic value given by its sustainable production of cork, and ecological importance in the Mediterranean region. The species is well adapted to dry climate, namely through sclerophyllous nature leaves with a well-developed cuticle, including cutin cuticular waxes that contribute protection against drought. Leaves cork oaks were collected along one annual c...

In recent years, in addition to pollution from cars, factories and other polluting devices, the country of Iran has been destination dust that have entered Iraq Saudi Arabia caused climate. this research, wettability some native plants Zagros Mountains investigated experimentally by measuring contact angle. Sampling oak trees Quercus brantii Lindl. species was carried out around Khorramabad cit...