Ion Exchange and Diffusion in Roots of Hordeum Vulgare
نویسندگان
چکیده
منابع مشابه
Aquaporin-facilitated water uptake in barley (Hordeum vulgare L.) roots
It is not known to what degree aquaporin-facilitated water uptake differs between root developmental regions and types of root. The aim of this study was to measure aquaporin-dependent water flow in the main types of root and root developmental regions of 14- to 17-d-old barley plants and to identify candidate aquaporins which mediate this flow. Water flow at root level was related to flow at c...
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The extensive use of herbicides in agriculture becomes an important factor in environmental pollution, especially in case of slowly degradable compounds. Some agents act on plants during a long period of time, even if a very low concentration of the herbicide remains in the soil. Here, we investigated the toxicological effect of a low concentration of dinitroaniline herbicide, trifluralin, on g...
متن کاملSilver ions disrupt K+ homeostasis and cellular integrity in intact barley (Hordeum vulgare L.) roots
The heavy metals silver, gold, and mercury can strongly inhibit aquaporin-mediated water flow across plant cell membranes, but critical examinations of their side effects are rare. Here, the short-lived radiotracer (42)K is used to demonstrate that these metals, especially silver, profoundly change potassium homeostasis in roots of intact barley (Hordeum vulgare L.) plants, by altering unidirec...
متن کاملThe composite water and solute transport of barley (Hordeum vulgare) roots: effect of suberized barriers
Background and Aims Roots have complex anatomical structures, and certain localized cell layers develop suberized apoplastic barriers. The size and tightness of these barriers depend on the growth conditions and on the age of the root. Such complex anatomical structures result in a composite water and solute transport in roots. Methods Development of apoplastic barriers along barley seminal r...
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ژورنال
عنوان ژورنال: Australian Journal of Biological Sciences
سال: 1965
ISSN: 0004-9417
DOI: 10.1071/bi9650541