Phycology جلبک شناسی

نخستین پایگاه اطلاعاتی جلبک شناسی به زبان فارسی

Anabaenopsis

General appearance of alga? Unbranched filaments; or Blue-green algae - cells without organelles.

Colour? green; or blue; or black.

Habitat freshwater; or terrestrial.

Aquatic type? lake; or pond.

Free-living or attached? free-living.

Motile? Not motile.

Is mucilage or gelatinous material present? Mucilage present but not stratified.

Filament: Branching type not recorded.

Filaments in bundles? not recorded.

Filament: Cell arrangement cells abutting.

Filament: Filament diameter not recorded.

Cell: Individual cell shape globose or spherical; or cylindrical.

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

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 present and terminal in position.

Cell: Akinetes present and intercalary in position.

Cell: Cell length not recorded.

Cell: Cell diameter 3–10 µm.

Cell: How many pyrenoids per plastid? 0.

Cell: How many plastids? 0.

Cell: Plastid shape? not recorded.

Cell: Position of plastid in cell? not recorded.

Colony: Are remnants of the mother cell wall present or is the entire mother cell wall persistent? not recorded.

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? Yes, unknown if harmful or toxic.

Distribution Northern Territory; or South Australia; or Queensland; or New South Wales; or Victoria.

Classification: Division Cyanobacteria (Blue-green algae).

Classification: Class Cyanophyceae.

Classification: Family Nostocaceae.

Reference Baker et al. (1999:29), Smith (1950:583), Bourelly (1970:420), Ling et al. (2000:26), Dillard (1999:112), Day et al. (1995:206), Entwisle et al. (1999c).

 

  
نویسنده : رضا رمضان نژاد قادی/ آرش کیانیان مومنی ; ساعت ۱٠:۳٤ ‎ق.ظ روز یکشنبه ۱٢ آبان ۱۳۸٧

Agmenellum

General appearance of alga? Soft or firm colony (many cells or filaments); or Blue-green algae - cells without organelles.

Colour? green; or blue; or colourless.

Habitat freshwater.

Aquatic type? not recorded.

Free-living or attached? free-living.

Motile? Not motile.

Is mucilage or gelatinous material present? Mucilage present in obvious concentric rings around each cell or group of cells in the colony.; or Mucilage present but not stratified.

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 ovoid.

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

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 not recorded.

Cell: Cell diameter not recorded.

Cell: How many pyrenoids per plastid? 0.

Cell: How many plastids? 0.

Cell: Plastid shape? not recorded.

Cell: Position of plastid in cell? not recorded.

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

Colony: cell arrangement Cells in groups greater than 4 cells.

Colony: Shape of colony? Rectangular.

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

Colony: Cells in one layer or throughout on periphery or surface layer of colony.

Capable of forming blooms? Not observed.

Distribution Queensland; or New South Wales.

Classification: Division Cyanobacteria (Blue-green algae).

Classification: Class Cyanophyceae.

Classification: Family Microcystaceae.

Reference Komárek et al. (1999), Day et al. (1995:199), Entwisle et al. (1999c).

  
نویسنده : رضا رمضان نژاد قادی/ آرش کیانیان مومنی ; ساعت ۱٠:۳۳ ‎ق.ظ روز یکشنبه ۱٢ آبان ۱۳۸٧

Actinotaenium

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.

Distribution Western Australia; or Northern Territory; or South Australia; or Queensland; or New South Wales; or Victoria; or Tasmania.

Classification: Division Chlorophyta (Green Algae).

Classification: Class Zygnematophyceae.

Classification: Family Desmidaceae.

referred to Cosmarium, Cylindrocystis, Penium and others.

Species and distribution Nine species reported from Australia.

Reference Croasdale & Flint (1988: 33-39), Dingley (2001), Ling et al. (2000:163), Day et al. (1995:77), Entwisle et al. (1999c

  
نویسنده : رضا رمضان نژاد قادی/ آرش کیانیان مومنی ; ساعت ۱٠:۳٢ ‎ق.ظ روز یکشنبه ۱٢ آبان ۱۳۸٧

Actinastrum

General appearance of alga? Non-motile microalgae (single cells); or Soft or firm colony (many cells or filaments).

Colour? green.

Habitat freshwater.

Aquatic type? lake; or pond.

Free-living or attached? free-living.

Motile? Not motile.

Is mucilage or gelatinous material present? Absent.

Filament: Branching type not recorded.

Filaments in bundles? not recorded.

Filament: Cell arrangement cells abutting.

Filament: Filament diameter not recorded.

Cell: Individual cell shape spindle-shaped.

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

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 15–24 µm.

Cell: Cell diameter 2–3 µm.

Cell: How many pyrenoids per plastid? 1.

Cell: How many plastids? 1.

Cell: Plastid shape? discoid or plate-like.

Cell: Position of plastid in cell? 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 Cells in groups of 2-4.

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 throughout colony.

Capable of forming blooms? Not observed.

Distribution Northern Territory; or South Australia; or Queensland; or New South Wales; or Victoria.

Classification: Division Chlorophyta (Green Algae).

Classification: Class Chlorophyceae.

Classification: Family Scenedesmaceae.

Reference Smith (1950: 275), Entwisle et al. (1997:32), Whitford et al. (1973:55), Dillard (1999:108), Prescott (1951:281), Ling et al. (2000:106), Day et al. (1995:170), Entwisle et al. (1999c).

  
نویسنده : رضا رمضان نژاد قادی/ آرش کیانیان مومنی ; ساعت ۱٠:۳۱ ‎ق.ظ روز یکشنبه ۱٢ آبان ۱۳۸٧

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مطلب زیر دایرکتوری تالابهای ایران نام داشته و اطلاعاتی در مورد تمامی تالابهای ایران ارائه می نماید که شامل اطلاعات توپوگرافی، جغرافیایی، هوا و اقلیم، زمین شناسی، هیدرولوژی و مانند آن است.

 

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نویسنده : رضا رمضان نژاد قادی/ آرش کیانیان مومنی ; ساعت ٩:٤۸ ‎ق.ظ روز شنبه ۱۱ آبان ۱۳۸٧