Adams,
Heterocyst formation in cyanobacteria, Curr.
(b) Intraoperative frozen pathology of thyroid isthmus: red arrow for
heterocyst; blue arrow for psammoma body; green arrow for papillary structure.
Boron requirement for envelope structure and function in Anabaena PCC 7119
heterocysts. J.
Ohmori, "NrrA directly regulates expression ofhetR during
heterocyst differentiation in the cyanobacterium Anabaena sp.
Westiellopsis iyengarii, a Filaments with true branching; made of prostrate and erect systems, prostrate system multiseriate, erect system uniseriate; branches short, arising on both the sides: individual sheath around filaments absent;
heterocysts intercalary, quadrate or cylindrical, was investigated for its protein and pigment contents at a rangeof different light intensities (low, medium and high) and qualities (Blue, Green and Red).
heterocysts was confirmed by re-association experiments.
Some cyanobacterial genera can fix nitrogen in specialized cells called
heterocysts, which form a monophyletic lineage.
if
heterocysts are present only when DIN is low, then
heterocystRichellia forms short filaments, generally with a
heterocyst (a differentiated nitrogen-fixing cell) at one end, and they are usually found as internal symbionts within larger diatom cells.
Relationship between [N.sub.2]-fixation and
heterocyst abundance and its relevance to the nitrogen budget of Lake 227.
The influence of nitrogen on
heterocyst production in blue-green algae.
Further, our P addition treatment had much lower inorganic N (owing to the 10-fold dilution of Oyster Pond water), which also may have provided conditions more favorable for
heterocyst development and N fixation, resulting in enough increase in N availability to increase phytoplankton biomass.