heterocyst


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heterocyst

[′hed·ə·rə‚sist]
(botany)
Clear, thick-walled cell occurring at intervals along the filament of certain blue-green algae.
References in periodicals archive ?
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).
Some cyanobacterial genera can fix nitrogen in specialized cells called heterocysts, which form a monophyletic lineage.
between nitrogen levels and heterocyst formation in Anabena spp.
2]-fixation and heterocyst abundance and its relevance to the nitrogen budget of Lake 227.
According to Hill (1977), heterocyst frequency reaches a maximum of about 30% of the cells in the 15th leaf from the apex.
Nitrogen fixation and heterocyst formation in cyanobacteria is inhibited by peptides (Yoon and Golden, 1998), whereas abdominal pumping (for larval release and dispersal) in mud crab is stimulated by small peptide cues (Forward et al.