| Dartmouth Electron Microscope Facility | Date: Fri 04-Nov-2011 Time: 14:40 |
 01_RootNodules80936
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Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Transmission electron microscope image of a cross section through a soybean(Glycine max.Essex) root nodule. The bacteria, Bradyrhyzobium japonicum, infects the roots and establishes a nitrogen fixing symbiosis. This image shows a cell and an infection thread. In this image, you can also see a cell in process of dividing. For more information, see the articles: Benson HP, Boncompagni E, Guerinot ML (2005) "An iron uptake operon required for proper nodule development in the Bradyrhizobium japonicum-soybean symbiosis" Mol Plant Microbe Interact. 2005 Sep;18(9):950-9. Roth, E. and G. Stacey (1989) "Bacterium release into host cells of nitrogen-fixing soybean nodules" J.C.B. Vol. 49 pp.13-23 1989 |
 02_RootNodules80938
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Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Transmission electron microscope image of a cross section through a soybean(Glycine max.Essex) root nodule. The bacteria, Bradyrhyzobium japonicum, infects the roots and establishes a nitrogen fixing symbiosis. This high magnification image shows part of a cell with single bacteriods within their symbiosomes. In this image, you can also see endoplasmic reticulum and the cell wall. For more information, see the articles: Benson HP, Boncompagni E, Guerinot ML (2005) "An iron uptake operon required for proper nodule development in the Bradyrhizobium japonicum-soybean symbiosis" Mol Plant Microbe Interact. 2005 Sep;18(9):950-9. Roth, E. and G. Stacey (1989) "Bacterium release into host cells of nitrogen-fixing soybean nodules" J.C.B. Vol. 49 pp.13-23 1989 |
 03_RootNodules80932
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Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Transmission electron microscope image of a cross section through a soybean(Glycine max.Essex) root nodule. The bacteria, Bradyrhyzobium japonicum, infects the roots and establishes a nitrogen fixing symbiosis. This image shows a cell with single bacteriods within their symbiosomes. For more information, see the articles: Benson HP, Boncompagni E, Guerinot ML (2005) "An iron uptake operon required for proper nodule development in the Bradyrhizobium japonicum-soybean symbiosis" Mol Plant Microbe Interact. 2005 Sep;18(9):950-9. Roth, E. and G. Stacey (1989) "Bacterium release into host cells of nitrogen-fixing soybean nodules" J.C.B. Vol. 49 pp.13-23 1989 |
 04_RootNodules80937
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Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Transmission electron microscope image of a cross section through a soybean(Glycine max.Essex) root nodule. The bacteria, Bradyrhyzobium japonicum, infects the roots and establishes a nitrogen fixing symbiosis. This high magnification image shows part of a cell with single bacteriods within their symbiosomes. In this image, you can also see endoplasmic reticulum and cell wall. For more information, see the articles: Benson HP, Boncompagni E, Guerinot ML (2005) "An iron uptake operon required for proper nodule development in the Bradyrhizobium japonicum-soybean symbiosis" Mol Plant Microbe Interact. 2005 Sep;18(9):950-9. Roth, E. and G. Stacey (1989) "Bacterium release into host cells of nitrogen-fixing soybean nodules" J.C.B. Vol. 49 pp.13-23 1989 |
 05_RootNodules80928
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Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Transmission electron microscope image of a cross section through a soybean(Glycine max.Essex) root nodule. The bacteria, Bradyrhyzobium japonicum, infects the roots and establishes a nitrogen fixing symbiosis. This image shows cells, with bacteriods within their symbiosomes, and infection threads For more information, see the articles: Benson HP, Boncompagni E, Guerinot ML (2005) "An iron uptake operon required for proper nodule development in the Bradyrhizobium japonicum-soybean symbiosis" Mol Plant Microbe Interact. 2005 Sep;18(9):950-9. Roth, E. and G. Stacey (1989) "Bacterium release into host cells of nitrogen-fixing soybean nodules" J.C.B. Vol. 49 pp.13-23 1989 |
 06
2b-coleusleaf-4.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Lamiales Lamiaceae (mint family) Coleus blumei Transmission electron microscope image of a chloroplast. There are starch granules present, along with the grana (stacks of disc-shaped thylakoids). |
 07
44568_1Cplate-1.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Asterales Asteraceae (daisy family) Latuca sativa Transmission electron microscope image of a thin section cut from Latuca sativa root tip specimen. Image shows formation of the cell plate, during cell division. A layer of vesicles in the midplane between the the two sets of daughter chromosomes forms an incomplete cell plate. In its further growth, the cell plate will traverse the cytoplasm and reach the cell wall. |
 08
55097_2Cplate-1.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Lamiales Lamiaceae (mint family) Coleus Blumei Transmission electron microscope image of a thin section cut from Coleus Blumei shoot apex specimen. Image shows formation of the cell plate, during cell division. A layer of vesicles, formed in the midplane between the the two sets of daughter chromosomes, is called the cell plate. In this image, the cell plate has almost traversed the entire cytoplasm and reached the cell wall. |
 09
55108_Cplate_extra-1.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Lamiales Lamiaceae (mint family) Coleus Blumei High maginfication of "2CPLate" image, showing a portion of the cell plate. At this stage of cell division, the cell plate is composed of individual vesicles. Phragmoplast microtubules occur on both sides of the cell plate. |
 10
55092_3Cplate-1.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Lamiales Lamiaceae (mint family) Coleus Blumei High maginfication of "2CPLate" image, showing a portion of the cell plate. At this stage of cell division, the cell plate is composed of individual vesicles. Phragmoplast microtubules occur on both sides of the cell plate. |
 11
Grid9c_WThypo2-3.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Brassicales Brassicaceae (mustard family) Arabidopsis thaliana Transmission electron microscope image of a chloroplast in the hypocotyl of Arabidopsis thaliana. There are starch granules present, along with the grana (stacks of disc-shaped thylakoids). |
 12
Grid9c_WThypo2-1.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Brassicales Brassicaceae (mustard family) Arabidopsis thaliana Transmission electron microscope image of a chloroplast in the hypocotyl of Arabidopsis thaliana. There are starch granules present, along with the grana (stacks of disc-shaped thylakoids). |
 13
Grid9c_WThypo2-4.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Brassicales Brassicaceae (mustard family) Arabidopsis thaliana Transmission electron microscope image of part of a chloroplast in the hypocotyl of Arabidopsis thaliana. There are starch granules present, along with the grana (stacks of disc-shaped thylakoids). |
 14
Grid9c_WThypo2-2.jpg |
Instrument: JEOL TEM 1010 Microscopist: Louisa Howard Brassicales Brassicaceae (mustard family) Arabidopsis thaliana Transmission electron microscope image of part of a chloroplast in the hypocotyl of Arabidopsis thaliana. There are starch granules present, along with the grana (stacks of disc-shaped thylakoids). |