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High water use in desert plants exposed to extreme heat.

Ecology Letters, 2020
Many plant water use models predict leaves maximize carbon assimilation while minimizing water loss via transpiration. Alternate scenarios may occur at high temperature, including heat avoidance, where leaves increase water loss to evaporatively cool ...
L. Aparecido   +4 more
semanticscholar   +1 more source

Leaf Temperatures of Desert Plants

Science, 1968
Temperatures of small leaves of many desert plants are within 3° C of air temperature in contrast to the temperature of Opuntia in the same locale; this plant has a temperature 10° to 16° C above air temperature. Theoretical justification for the observation is given based on an energy budget analysis.
D M, Gates, R, Alderfer, E, Taylor
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Rheum palaestinum (desert rhubarb), a self-irrigating desert plant

Naturwissenschaften, 2008
The rare plant Rheum palaestinum (Polygonaceae) is a perennial hemicryptophyte that grows during the rainy winter in desert mountainous areas in Israel and Jordan that receive an average annual rainfall of ca. 75 mm. It produces between one and four large round leaves that are tightly attached to the ground and form large rosettes of up to 1 m(2 ...
Simcha, Lev-Yadun   +2 more
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Plant-soil interactions in deserts

Biogeochemistry, 1998
Geostatistical analyses show that the distribution of soil N, P and K is strongly associated with the presence of shrubs in desert habitats. Shrubs concentrate the biogeochemical cycle of these elements in ‘islands of fertility’ that are localized beneath their canopies, while adjacent barren, intershrub spaces are comparatively devoid of biotic ...
William H. Schlesinger   +1 more
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Desert plants drinking

Nature, 1974
A New Ecophysiological Approach to Forest-Water Relationships in Arid Climates. By I. Gindel. Pp. 142. (Junk: The Hague, 1973.) 40 guilders.
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Anticancer attributes of desert plants

Anti-Cancer Drugs, 2012
The ever-increasing emergence of the resistance of mammalian tumor cells to chemotherapy and its severe side effects reduces the clinical efficacy of a large variety of anticancer agents that are currently in use. Thus, despite the significant progress in cancer therapeutics in the last decades, the need to discover and to develop new, alternative, or ...
Eli, Harlev   +4 more
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SODIUM RELATIONS IN DESERT PLANTS

Soil Science, 1982
Plants native to the Qattara Depression of Egypt show remarkable zonation in response to changing environmental factors. These factors include: relief, soil texture, soil salt content, relative proportions of ions, and quality of available water. Most species also show considerable selectivity in the absorption of mineral elements. This is indicated by
A. A. EL-GHONEMY   +3 more
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Antimicrobial Activity of Desert Plants

Nature, 1964
THE desert is an area in which less than 20 per cent of the ground surface is covered with vegetation. Although there are approximately 5,000 species of plants, less than 1 per cent of these have been investigated for antimicrobial activity1–10. This communication is concerned with the extracts prepared from the leafy portions of 25 plant specimens ...
JASPER C. MARUZZELLA, HERBERT MARX
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Plants on Desert Hillslopes

1994
Texts on desert geomorphology have tended to pay little attention to the presence of vegetation. The main landforming processes in desert environments are fluvial and aeolian, which operate on a surface with a very reduced vegetation cover. Indeed vegetation is absent in many areas.
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