Starch granules electron micrographs

Figure 1. Scanning electron micrograph of Phaseolus vulgaris cotyledon showing protein bodies (P) and starch granules (S). Bar = 10 dm.

Figure 10.3 Scanning electron micrographs (SEM) featuring (a) the presence of some small size nodules or protuberances on some potato starch granules and (b) surface fragmentation on some potato starch granules (source Singh et al., 2006).

FIGURE 7-14 Electron micrographs of starch and glycogen granules. 

Figure 4-6 Scanning electron micrographs of starch granules. Magnification 2500x and 3000x. From Jane et alP...

Electron crystallography 131 Electron micrograph of bacteria 4 of cell junctions 27 of plant cell 13 of starch granules 172 of viruses 246... 

FIGURE 6.5 Scanning electron micrograph of starch granules isolated from Eleusine (Jideani et al., 1996. Reproduced with permission from Cereal Chemistry). 

Figure 5.14 Transmission electron micrograph ofwaxy maize starch granule after a-hydrolysis showing internal canal of corrosion. In the outer shell diameter, the size of the thin canalicles is about 25 nm. (Gallant, unpublished)...

Figure 5.15 Scanning electron micrographs of starch granules after mild a-amylolysis showing the occurrence of spherical bl ocklet-l I ke structures, (a) potato and (b) wheat starch granules. (Adapted with permission from reference 1)...

Figure 5.21 Scanning electron micrographs of maize starch granules after ot-amylolysis showing resistant shells composed of blocklet-like structures (a) at internal canal of corrosion level and (b) at shells level. (Gallant, unpublished)...

Figure 6.4 (a) Scanning electron micrograph (SEM) of a remaining normal maize starch granule after 84% starch has... 

FIG. 2. Scanning electron micrographs of starch granules from (a) maize, 1500X (b) potato, 1500X (c) rice, 5000X and (d) tapioca, 1500X. From Fitt and Snyder (1984). 

Electron micrographs of castor bean endosperm tissue showed the presence of proplastids with starch grains. Starch synthase was shown to be associated with the proplastid fraction of the endosperm tissue along with the starch granule (Reibach and Benedict, 1982). 

Electron micrograph of a chloroplast. The thylakoid membranes course throughout the stroma of a chloroplast from a cell of Phleum pratense, a grass. The dark areas of stacked thylakoid membrane are grana. Several large starch granules, which store the newly synthesized glucose, are also obvious. [Biophoto Associates/Photo Researchers.]... 

Scanning electron micrographs of starch granules from nine different botanical sources A, potato B, rice C, wheat D, mung bean E, maize F, waxy maize G, tapioca H, shot J, leaf starch. Magnification 1500X for each starch... 

Scanning electron micrograph of potato starch granule treated with Bacillus amyloliquefaciens ce-amylase, showing growth rings of the crystalline -amylase resistant starch in the granule... 

Electron micrographs of starch granules in a plant and glycogen granules in an animal. 

FIG. 4 Scanning electron micrographs of sweet potato starch granules (Miller et al,... 

Yasuda (1945) deduced this from his observation that the protoplasm of the pollen tube is found primarily at the apex and constantly recedes from the older portions of the pollen tube. Later, O Kelley and Carr (1954) observed from electron micrographs that the wall structure of the extreme tip was more open than the portions behind the tip. This has been confirmed by Iwanami (1959), who considers the tip to be continuously in an unfinished state. He presents evidence that the tube contents are always under slight positive pressure maintaining a continuous tendency toward rupture of the tip membrane, counterbalanced by the continuous formation of new wall. He also observed that the protoplasm at the very apex of the tube has a different appearance than that further back because of the absence of granules (starch grains). This clear portion he has called a cap block. 

Fig. 2.7. Agranal chloroplast from the mesophyll of Cotyledon salmiana. ST, Starch granule PL, Plastoglobulus TM, Thylacoid membranes (electron micrograph by courtesey of...

Figure 6.2. Scanning electron micrographs of starch granules A, maize B, potato C, wheat D, rye E, rice F, lentil bean G, green pea H, avocado I, shod. From ref. [2], reprinted by permission of the author and publisher.

In these electron micrographs plastids are present in both cell types. Although plastids in both cell types contain starch, only those in the uninfected cells accumulate large starch granules (Fig. 8A). In more extensive studies, Webb... 

Figure 1 Scanning electron micrographs of (a) rye grass (Lolium perenne) pollen surrounded by starch granules and (b) starch granules. (Courtesy of Prof Frank Murray, Murdoch University, Perth, Western Australia, Australia.)...

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