نتایج جستجو برای: sap flux density

تعداد نتایج: 494422  

2014
Ji Eun Kim Sang Mok Lee Soo Hyun Kim Phil Tatman Albert O Gee Deok-Ho Kim Kyung Eun Lee Youngmee Jung Sang Jun Kim

PURPOSE To evaluate the efficacy of mesenchymal stem cells (MSCs) encapsulated in self-assembled peptide (SAP) hydrogels in a rat knee model for the prevention of osteoarthritis (OA) progression. MATERIALS AND METHODS Nanostructured KLD-12 SAPs were used as the injectable hydrogels. Thirty-three Sprague Dawley rats were used for the OA model. Ten rats were used for the evaluation of biotin-ta...

2006
Peter Millard Denise Neilsen Gwen Grelet Gerry H. Neilsen

Objectives: The overall objective is to determine the physiological limitation of nitrate uptake by Fuji apple trees on M9 rootstocks in the spring and early summer. This includes: • Measuring the influence of soil temperature on nitrate uptake by the roots • Determining the impact of tree N status on nitrate uptake, by considering that during the period of N remobilisation from storage, xylem ...

Journal: :Environmental pollution 2010
Sabine Braun Christian Schindler Sebastian Leuzinger

For a quantitative estimate of the ozone effect on vegetation reliable models for ozone uptake through the stomata are needed. Because of the analogy of ozone uptake and transpiration it is possible to utilize measurements of water loss such as sap flow for quantification of ozone uptake. This technique was applied in three beech (Fagus sylvatica) stands in Switzerland. A canopy conductance was...

Journal: :Journal of experimental botany 2003
Nathalie Munier-Jolain Christophe Salon

The composition of the translocates reaching the seeds of pea plants having various nitrogen (N) nutrition regimes was investigated under field situations. Sucrose flow in the phloem sap increased with the node number, but was not significantly different between N nutrition levels. Because N deficiency reduced the number of flowering nodes and the number of seeds per pod, the sucrose flow bleed...

Journal: :Tree physiology 1997
C Fort M L Fauveau F Muller P Label A Granier E Dreyer

Leaf conductance, water relations, growth, and abscisic acid (ABA) concentrations in xylem sap, root apices and leaves were assessed in oak seedlings (Quercus robur L.) grown with a root system divided between two compartments and subjected to one of four treatments: (a) well watered, WW; (b) half of root system exposed to soil drying and half kept well watered, WD; (c) whole root system expose...

Journal: :JOURNAL OF JAPAN SOCIETY OF HYDROLOGY & WATER RESOURCES 2003

Journal: :Tree physiology 2008
Johan Uddling Ronald M Teclaw Mark E Kubiske Kurt S Pregitzer David S Ellsworth

Elevated concentrations of atmospheric carbon dioxide ([CO2]) and tropospheric ozone ([O3]) have the potential to affect tree physiology and structure and hence forest water use, which has implications for climate feedbacks. We investigated how a 40% increase above ambient values in [CO2] and [O3], alone and in combination, affect tree water use of pure aspen and mixed aspen-birch forests in th...

2012
Jeong Hun Kim Myung Ho Jeong Young Joon Hong Ki Hong Lee In Soo Kim Yun Ha Choi Min Goo Lee Keun-Ho Park Doo Sun Sim Ju Han Kim Youngkeun Ahn Jeong Gwan Cho Jong Chun Park Jung Chaee Kang

BACKGROUND AND OBJECTIVES The relationship between lipid profile and coronary plaque tissue characteristics in patients with stable angina pectoris (SAP) is unclear. The aim of this study was to evaluate the relationship between tissue characteristics and lipid profile and predictors of unstable plaques (UPs) in patients with SAP by virtual histology intravascular ultrasonography (VH-IVUS). S...

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