Hydrologic regulation of plant rooting depth
نویسندگان
چکیده
منابع مشابه
Hydrologic regulation of plant rooting depth.
Plant rooting depth affects ecosystem resilience to environmental stress such as drought. Deep roots connect deep soil/groundwater to the atmosphere, thus influencing the hydrologic cycle and climate. Deep roots enhance bedrock weathering, thus regulating the long-term carbon cycle. However, we know little about how deep roots go and why. Here, we present a global synthesis of 2,200 root observ...
متن کاملRooting plant development.
In 1993, we published a paper in Development detailing the anatomical structure of the Arabidopsis root. The paper described how root growth was maintained by the precisely tuned activity of a small set of 'initials', which acted as the source of dividing and differentiating cells, and how these stem cell-like cells surrounded a few infrequently dividing cells. This work underpinned subsequent ...
متن کاملRooting depth explains [CO2] x drought interaction in Eucalyptus saligna.
Elevated atmospheric [CO(2)] (eC(a)) often decreases stomatal conductance, which may delay the start of drought, as well as alleviate the effect of dry soil on plant water use and carbon uptake. We studied the interaction between drought and eC(a) in a whole-tree chamber experiment with Eucalyptus saligna. Trees were grown for 18 months in their C(a) treatments before a 4-month dry-down. Trees ...
متن کاملEcosystem rooting depth determined with caves and DNA.
Belowground vertical community composition and maximum rooting depth of the Edwards Plateau of central Texas were determined by using DNA sequence variation to identify roots from caves 5-65 m deep. Roots from caves were identified by comparing their DNA sequences for the internal transcribed spacer (ITS) region of the 18S-26S ribosomal DNA repeat against a reference ITS database developed for ...
متن کاملS08-03 Development of land plant rooting structures
The anterior foregut of the mammalian embryo initially consists of a simple epithelial tube surrounded by undifferentiated mesoderm. As development proceeds this tube separates into two – the dorsal esophagus and the ventral trachea – while the primary lung buds at the distal end of the trachea undergo extensive branching morphogenesis to give rise to the lungs. The simple epithelium in each re...
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: Proceedings of the National Academy of Sciences
سال: 2017
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1712381114