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Sink region, pathways

In sink regions, there are essentially three in vivo pathways by which sucrose exits the sieve tubes (Figure 4). All three are operating in different types of sinks and all are metabolism depend-... [Pg.12]

Figure 4. Pathways of phloem unloading in sink regions. See text for details. Reproduced with permission from Ref. 13. Copyright 1983. American Society of Plant Physiologists. Figure 4. Pathways of phloem unloading in sink regions. See text for details. Reproduced with permission from Ref. 13. Copyright 1983. American Society of Plant Physiologists.
Abundant Cis isoprenoid ketone, Z/E pristenal, and Z/E phytenal as well as phytol biomarker compounds were detected in the sinking particulate materials from the Yongshu Reef Lagoon and the continental shelf of the East China Sea (Figs. 5.28 and 5.29). This appears to be the first report of these compounds in China marine environment. Detection of these compounds in the studied regions is of some importance to understand the evolutional processes of acyclic isoprenoid compounds in the seawater column and their formative pathways in marine sediments. Their identifications were based on chromatographic retention time, mass spectrum features (Figs. 5.28 and 5.29), and comparison with those reported previously. The mass spectrum of phytol trimethylsilyl ether exhibits a base peak at mlz 143 and a molecular ion at mjz 368. Cig isoprenoid ketone has a base peak at mjz 58, a molecular... [Pg.602]


See other pages where Sink region, pathways is mentioned: [Pg.267]    [Pg.319]    [Pg.76]    [Pg.228]    [Pg.730]    [Pg.516]    [Pg.75]    [Pg.92]    [Pg.11]    [Pg.4068]    [Pg.5070]    [Pg.442]    [Pg.30]    [Pg.594]    [Pg.465]    [Pg.2]    [Pg.113]    [Pg.559]    [Pg.563]    [Pg.442]    [Pg.533]    [Pg.495]   
See also in sourсe #XX -- [ Pg.6 , Pg.12 ]




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