Root Water Uptake and Ideotypes of the Root System: Whole-Plant Controls Matter
نویسندگان
چکیده
منابع مشابه
Root System Regulation of Whole Plant Growth1
New evidence confirms earlier postulates that root signals to shoots, including abscisic acid, nitrate flux, and cytokinins, modify whole plant growth processes including leaf expansion, stomatal behavior, and biosynthesis of photosynthetic enzymes. Root signals are thought to reflect soil water, nutrient, and mechanical attributes, as sensed by roots. Meristematic activities in root tips initi...
متن کاملReconstructing plant root area and water uptake profiles
A major challenge in plant ecology is quantifying how roots interact with the soil to obtain water and nutrients. Stable isotope analysis of hydrogen and oxygen bound in plant and soil water is one of the best and least destructive methods for elucidating plant-soil interactions. Plant roots obtain water from various depths in the soil and the isotopic signature of plant stem water reflects the...
متن کاملcellular behavior and scanning electron microscope evaluation of pro-root mta, root mta and modified mta on fibroblast l929
چکیده ندارد.
15 صفحه اولMeasuring and Modeling of Plant Root Uptake of Organic Chemicals
The potential of xenobiotic organic compounds to be taken up by plant roots and transported to above ground tissue is an important consideration for phytoremediation projects and risk assessments alike. The transpiration stream concentration factor (TSCF), a ratio of the xylem concentration to the root-zone solution concentration, is the most commonly used parameter describing plant root uptake...
متن کاملPlant root distributions and nitrogen uptake predicted by a hypothesis of optimal root foraging
CO(2)-enrichment experiments consistently show that rooting depth increases when trees are grown at elevated CO(2) (eCO(2)), leading in some experiments to increased capture of available soil nitrogen (N) from deeper soil. However, the link between N uptake and root distributions remains poorly represented in forest ecosystem and global land-surface models. Here, this link is modeled and analyz...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Vadose Zone Journal
سال: 2017
ISSN: 1539-1663
DOI: 10.2136/vzj2017.05.0107