Phycology جلبک شناسی

نخستین پایگاه اطلاعاتی جلبک شناسی به زبان فارسی




General appearance of alga? Non-motile microalgae (single cells).


Colour? green.


Habitat freshwater; or terrestrial.


Aquatic type? lake; or pond; or bogs; or puddles and ditches.


Free-living or attached? free-living.


Motile? not recorded.


Is mucilage or gelatinous material present? Absent.


Filament: Branching type not recorded.


Filaments in bundles? not recorded.


Filament: Cell arrangement not recorded.


Filament: Filament diameter not recorded.


Cell: Individual cell shape globose or spherical; or ellipsoid; or ovoid.


Cell: Is there a median constriction (isthmus)? Shallow furrow.


Cell: Do the cells bear spines or cellular extensions? Absent.


Cell: How many flagella per cell? Absent.


Cell: Is a red eyespot conspicuous? no.


Cell: Heterocytes absent.


Cell: Akinetes absent.


Cell: Cell length 20–260 µm.


Cell: Cell diameter 7–110 µm.


Cell: How many pyrenoids per plastid? 2–10.


Cell: How many plastids? 1.


Cell: Plastid shape? star-shaped.


Cell: Position of plastid in cell? Axial; or Parietal.


Colony: Are remnants of the mother cell wall present or is the entire mother cell wall persistent? Mother cell wall absent.


Colony: cell arrangement not recorded.


Colony: Shape of colony? not recorded.


Colony: Are cells or groups of cells connected by mucilaginous threads? No.


Colony: Cells in one layer or throughout not recorded.


Capable of forming blooms? Not observed.


Classification: Division Chlorophyta (Green Algae).


Classification: Class Zygnematophyceae.


Classification: Family Desmidaceae.







نویسنده : رضا رمضان نژاد قادی ; ساعت ۱٢:۳٥ ‎ق.ظ روز دوشنبه ٢ بهمن ۱۳۸٥