Sap Flow
Mostrando 25-36 de 42 artigos, teses e dissertações.
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25. Coupling Sap Flow Velocity and Amino Acid Concentrations as an Alternative Method to 15N Labeling for Quantifying Nitrogen Remobilization by Walnut Trees1
The temporal dynamics of N remobilization was studied in walnut (Juglans nigra × regia) trees growing in sand culture. Trees were fed with labeled N (15N) during 1999 and unlabeled N in 2000. Total N and 15N contents in different tree compartments were measured during 80 d after bud burst and were used to estimate N remobilization for spring growth. The sea
American Society of Plant Physiologists.
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26. TEMPERATURE-INDUCED SAP FLOW IN EXCISED STEMS OF ACER 1
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27. Measurement of Sap Flow in Conifers by Heat Transport. 1
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28. OBSERVATIONS ON THE CAUSES OF THE FLOW OF SAP IN RED MAPLE
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29. Maple Sirup: IX. Microorganisms as a Cause of Premature Stoppage of Sap Flow from Maple Tap Holes1
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30. A Statistical Evaluation of Some of the Factors Responsible for the Flow of Sap from the Sugar Maple. 12
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31. The Water Content of Maple Stems. II. Apparent Changes in the Water Content of Maple Stems and the Physiology of Maple Sap Flow. 12
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32. Effect of Potassium Supply on the Rate of Phloem Sap Exudation and the Composition of Phloem Sap of Ricinus communis
The composition of phloem sap has been investigated in Ricinus communis var. gibsonii, grown for 2 weeks on nutrient solution of low and high potassium content (K1 and K2). Diagonal cuts were made in the bark of the stem resulting in the exudation of clear droplets which mainly consisted of phloem sap. Although the plants at low K (0.4 mm) and high K (1 mm)
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33. Identification of the Bacterial Community of Maple Sap by Using Amplified Ribosomal DNA (rDNA) Restriction Analysis and rDNA Sequencing
The bacterial community of maple sap was characterized by analysis of samples obtained at the taphole of maple trees for the 2001 and 2002 seasons. Among the 190 bacterial isolates, 32 groups were formed according to the similarity of the banding patterns obtained by amplified ribosomal DNA restriction analysis (ARDRA). A subset of representative isolates fo
American Society for Microbiology.
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34. General model for osmotic and pressure-induced flow in plant roots
This paper presents a general model to describe coupled solute and water flow through plant roots when they are subjected to osmotic or hydrostatic pressure gradients, or both simultaneously. The model is based on well-established membrane transport equations derived from irreversible thermodynamic considerations. A variety of experimentally observed phenome
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35. Asparagine Biosynthesis in Alfalfa (Medicago sativa L.) Root Nodules 1
Rapid direct conversion of exogenously supplied [14C]aspartate to [14C] asparagine and to tricarboxylic cycle acids was observed in alfalfa (Medicago sativa L.) nodules. Aspartate aminotransferase activity readily converted carbon from exogenously applied [14C]aspartate into the tricarboxylic acid cycle with subsequent conversion to the organic acids malate,
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36. Destination-Selective Long-Distance Movement of Phloem ProteinsW⃞
The phloem macromolecular transport system plays a pivotal role in plant growth and development. However, little information is available regarding whether the long-distance trafficking of macromolecules is a controlled process or passive movement. Here, we demonstrate the destination-selective long-distance trafficking of phloem proteins. Direct introductio
American Society of Plant Biologists.