The sink-source transition in leaves

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WebApr 13, 2024 · Sink/Source Balance of Leaves Influences Amino Acid Pools and Their Associated Metabolic Fluxes in Winter Oilseed Rape ( Brassica napus L.) Authors Younès Dellero 1 , Maud Heuillet 2 3 , Nathalie Marnet 4 , Floriant Bellvert 2 3 , Pierre Millard 2 , Alain Bouchereau 1 4 Affiliations WebE SOURCE–SINK TRANSITION. Source–sink relationships vary among different plant species because of their different growth habits, growth rates and generation times. ... Once the new leaves unfold from the bud, the sink capacity of the bud gradually declines, culminating into a banjhi shoot unless harvested. Thus the process of plucking ...

Sink to source transition in developing leaf blades of tall fescue

WebOct 18, 2024 · We apply these analyses to the sink to source transition continuum of leaves from single A. thaliana rosettes and characterize the associated relative changes of metabolite pools, as well as previously hidden changes of … WebOct 15, 2004 · Profiles of small polar metabolites from aspen ( Populus tremuloides Michx.) leaves spanning the sink-to-source transition zone were compared. Approximately 25% of 250 to 300 routinely resolved peaks were identified, with carbohydrates, organic acids, and amino acids being most abundant. movies about evil ai

The transcriptome landscapes of citrus leaf in different

WebApr 9, 2024 · Nitrogen is an essential nutrient for plant growth. However, the excessive use of nitrogen fertilizers not only increases production cost, but also has negative a impact on the environment. The purpose of this study was to quantify the source-sink characteristics and length of each growth stage in two potato varieties under different nitrogen … WebApr 19, 2024 · The temporal expression profiles of citrus leaves explain the sink-source transition of immature leaves to mature leaves and provide knowledge regarding the … WebLeaves undergo a sink–source transition during which a physiological change occurs from carbon import to export. In sink leaves, biolistic bombardment of plasmids encoding GFP-fusion proteins demonstrated that proteins with an M r up to 50 kDa could move freely through plasmodesmata. movies about ex military

What happens when leaves go from sink to source? CHESS

The sink-source transition in leaves

Coincidence of maximum severity of powdery mildew on grape leaves …

WebSep 1, 2000 · This provided the framework for the analysis of changes in assimilation, transpiration and dark respiration, chlorophyll, protein, carbohydrate, and amino acid concentrations, and of activities of sink–source‐related enzymes at the leaf tip and base during leaf development in well‐watered and drought‐stressed plants. WebHowever, in older, larger plants (approximately 40 d post-sowing), the sink-source transition occurred in leaves up to 16 cm long and involved both major and minor vein classes as revealed by GFP ...

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WebDec 21, 2001 · The sink–source transition of developing Nicotiana tabacum (tobacco) leaves was studied here using chlorophyll fluorescence imaging. In accordance with leaf … WebIt has been shown that the sucrose concentration in sieve tubes in leaves is commonly between 10 and 30 percent whereas it forms only 0.5% solution in the photosynthesis …

WebJan 9, 2000 · Sink-to-source transition occurs at a particular leaf stage in which a breakpoint corresponding to an accumulation of carbohydrates and a depletion of both organic and inorganic nitrogen is observed. WebThe sink-source transition in leaves [1989] Turgeon, R. (Cornell University, Ithaca, NY); Access the full text NOT AVAILABLE; Lookup at Google Scholar From the journal Annual …

WebAbstract Abstract We studied the anatomical and ultrastructural changes accompanying sink-to-source transition in developing maize (Zea mays L. cv. W273) leaves, in which sink, transition, and source regions had been identified by whole-leaf autoradiography. WebOct 10, 2012 · Two photosynthetic ‘source’ leaves per shoot on the remaining 8–10 shoots were treated with 14 CO 2 to identify, by autoradiography, the leaf position completing the carbohydrate sink-to-source transition. There was a clear association between the mean modal leaf position for maximum severity of powdery mildew (position 3·7 for 18°C ...

WebMay 9, 2003 · The sink–source transition occurred during leaf area expansion in P. vulgaris. These trends were the same as those reported for many dicot herbs (Turgeon 1989). On the other hand, in Q. glauca, the daily C exchange rates were negative until FLE and further increased thereafter for about 10 d. The sink–source transition occurred 7 d after FLE.

Webarundinacea) leaves at the time of transition from sink to source. The developing leaf contains a source, the exposed tip, and a sink, the growing basal portion. When the exposed tip of the developing blade is labelled with 14CO2, it exports photosynthates exclusively to sinks within the developing blade until the blade reaches 80% heather m jones richland waWeb* The sink-source transition of developing Nicotiana tabacum (tobacco) leaves was studied here using chlorophyll fluorescence imaging. * In accordance with leaf development, the quantum efficiency of PSII, showed a steep gradient across the leaf with increasing values towards the tip. heather m. longin mdWebNov 1, 2005 · The transition from import to export was attained 11-12 days after budbreak (corresponding to 41% to 45% of full leaf expansion) for the 6th leaf, about 7-9 days after … heathermoandcoWebThe source-sink relationship is governed by hormonal balance and the demand and supply within the bush. Auxin in the shoot tips, gibberellins in the maintenance leaves, and the … heather m kennedy lmftWebSink-to-source transition occurs at a particular leaf stage in which a breakpoint corresponding to an accumulation of carbohydrates and a depletion of both organic and … heather m metchick mdWebwhere sink and source are simultaneously located in the same organ with the emerged leaf tip already mature and photosynthetically active while the … heather mlxture waltzWebJun 1, 1989 · The Sink-Source Transition in Leaves. Turgeon, R. Annual Review of Plant Biology , Volume 40 (1) – Jun 1, 1989. Read Article. Download PDF. Share Full Text for … movies about evil kids