Phloem loading model
Webbhave contributed to our view on the mechanism of loading, translocation and unloading in this plant group (Holbrook & Zwieniecki 2005). Recent work involving translocation velocity measurements (Windt et al. 2006; Jensen et al. 2011),theoretical modelling and microfluidic model experi-ments (Jensen et al.2009,2011) have shown that the phloem Webb13 apr. 2024 · As a starchy and edible tropical plant, cassava (Manihot esculenta Crantz) has been widely used as an industrial raw material and a dietary source. However, the metabolomic and genetic differences in specific germplasms of cassava storage root were unclear. In this study, two specific germplasms, M. esculenta Crantz cv. sugar cassava …
Phloem loading model
Did you know?
WebbPoints are color coded by species phloem loading strategy. The species used in the model simulations are indicated from R1–R5 in order of increasing pathway resistance. … WebbPhloem sap is also thought to play a role in sending informational signals throughout vascular plants. "Loading and unloading patterns are largely determined by the conductivity and number of plasmodesmata and the …
WebbAlthough the phloem is a highly specialized tissue, certain pathogens, including phytoplasmas, spiroplasmas, and viruses, have evolved to access and live in this sequestered and protected environment, causing substantial economic harm. In particular, Candidatus Liberibacter spp. are devastating citrus in many parts of the world. Given … Webbxylem and phloem or differences in xylem and phloem loading. Girdling of the stem showed that the transport of reduced nitrogen compounds from older needle generations to current-year needles proceeded in both xylem and phloem. In addition, an intensive bidirectional exchange of Gln and Asp between xylem and phloem was observed during
WebbThis source‐to﹕ink carbon allocation occurs in the phloem and requires the loading of sucrose into the leaf phloem and, at the sink end, its import into the growing embryo. Both tasks are achieved through the function of SUT sucrose transporters. WebbAnalytic solutions and universal properties of sugar loading models in Munch¨ phloem flow Kaare H. Jensena,1, Kirstine Berg-Sørensena, Søren M.M. Friisa, Tomas Bohrb,n a …
Webb13 jan. 2010 · Perbedaan antara model osmometer dengan pengangkutan floem yang sesungguhnya terletak pada sumber dan lingbungnya. Pada daun, bahan terlarut yang …
Webb5 juli 2013 · Phloem loading via the apoplast or by polymer trapping elevates the concentration of sugar in the companion cells to much higher levels than in the … importance of ppaWebb26 mars 2012 · Three phloem loading strategies have been identified, two active mechanisms, apoplastic loading via sucrose transporters and symplastic polymer … literary critics of 1950s cultureWebbför 21 timmar sedan · Sheep production efficiency would be reduced. The trophic efficiency of sheep would be increased. Submit. Q3.12. Assimilation efficiency (AE) is calculated as: O ingestion / primary production O secondary production / primary production O secondary production / assimilation assimilation / ingestion Submit … importance of ppe at homeWebbMechanism of Phloem Transportation Sieve tubes in the phloem form long columns with holes in the end walls. Cytoplasmic strands pass through these holes forming a … importance of practicum to studentsWebb23 mars 2024 · BPH severely damages rice by sucking phloem sap from the leaf sheath, thus causing wilting and leading to yield losses (Cheng et al., 2013b). Studies of the rice-BPH interaction have identified several BPH-associated resistance genes ... Working model of the role of MLGs in regulating BPH resistance. importance of power in sprintingWebbFresh samples used for the phloem extraction were temporarily packed in sealed plas- tic bags and extracted by the phloem EDTA-facilitated exudation technique, as described by King and Zeevaart [35]. The concentration of the EDTA solutions was 20 mM in order to avoid cell damage and the optimal extraction time was 6 h, as previously tested for … importance of practical mensurationWebbinside the phloem. This translocation occurs via the plasma membrane of the sieve tubes, which are composed of a series of connected sieve elements. The mechanism of the longitudinal assimilate movement in sieve tubes has been explained by two different models of phloem loading: 1. Symplastic loading, 2. Apoplastic loading. importance of practicum experience