Home / Cyanobacteria / Filaments / Unbranched
/ Untapered
/ Heterocysts / No_visible_sheath / Anabaena / Images |
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Anabaena (Cyanophyceae) |
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Anabaena.
spiroides
from a lake in New Hampshire USA |
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Anabaena.
spiroides
from a lake in New Hampshire USA with some Microcystis/Woronichinia colonies |
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Anabaena.
spiroides
from a lake in New Hampshire USA
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Anabaena.
spiroides from a lake in New Hampshire
USA. "Polar plugs" that greatly reduce diffusion of oxygen
from adjacent cells are clearly visible in the two heterocysts. |
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Anabaena.
spiroides
from a lake in New Hampshire USA
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Anabaena.
spiroides
from a lake in New Hampshire USA, with attached ciliates
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Anabaena.
sp. from a lake in New
Hampshire USA. Open ring formation |
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Anabaena.
sp. from a lake in New
Hampshire USA. Mainly akinetes (spores), some
with attached heterocysts, from Willand
Pond, Dover, NH USA |
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Anabaena.
sp. from a
lake in New Hampshire USA |
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Anabaena
sp. Nicely stained sheath brings into question whether unstained
specimens lack a visible sheath. |
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Anabaena
sp. Illustrates polar plugs of heterocyst. Modified from image (0013L)
at nies.go.jp |
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Anabaena
sp. with a clear heterocyst and a granular akinete
surrounded by watery (low viscosity) sheath, .
Modified from image at nifty.com |
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Clear
heterocyst, granular akinete and vegetative cells.
Modified from image (0008L) at the National Institute
of Environmental Science, Japan |
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Anabaena
circinalis with cylindrical cells. |
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Anabaena sp. Cluster of akinetes in late autumn after lysis
of vegetative cells, 9 Nov 2009 |
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Anabaena sp. Cluster of akinetes in late autumn after lysis
of vegetative cells 9 Nov 2009 |
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Anabaena sp. Cluster of akinetes in late autumn after lysis
of vegetative cells 9 Nov 2009 |
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Cluster
of akinetes in late autumn after lysis of vegetative cells |
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Anabaena sp. Cluster of akinetes in late autumn after lysis
of vegetative cells 9 Nov 2009 |
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Anabaena
sp. with sheath (rare!) and intercalary heterocyst from Goose Pond, Shapleigh
Maine USA 25 Oct 2014 |
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Anabaena
flos-aquae
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Anabaena cylincrica Lemm. Thérézien, Y. and A. Couté 1977.
Algues d’eau douce des Îles
Kerguelen et Crozet. Comite Nation Franc Rech Antarct 43: 1-91 |
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Anabaena azollae dissected from an aquatic fern Azolla sp. by Henry Van Cotter in Virginia, USA
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