Division Cryptophyta , Neti

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phycology

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DIVISION

CRYPTOMONAS

. .

2 phycobiliprotein

Ejectosome

Characteristics of the Cryptophyta ( after South & Whittick 1987, Table 2.2) Main pigments Nuclear material Food reserves Chlorophyll-a and Chlorophyll-c, aCarotene, Xanthophylls (diatoxanthan), phycoerythrin, phycocyanin; Chlorophyll-b is never present. Organised into membrane-bound nucleus Starch-like

Chloroplast present, membrane 2-layered but page 2 with an extra two layers of endoplasmic Chloroplast reticulum that is other continuous with the features nuclear envelope, the thylakoids are paired; phycobilin pigments are present, but not in phycobilisomes; nucleomorph present. chloroplast endoplasmi present c reticulum Cell wall Flagella Periplast Two, with lateral hairs

1.1

a c 1.2 - , , carotene ( ) - xanthophyll alloxanthin, crocoxanthin, monadoxanthin, caexanthin phycobilin phycobiliprotein phycocyanin phycoerythrin

-

periplast plasma membrane

- Chloroplast --Chlorophyll a, c Chloroplast 1-2

- - 1, 4-

glucan ( )

C = chloroplast. FU = furrow. G = golgi. PY = pyrenoid. S = starch. E, e = large and small ejectosomes (respectively). V = contractile vacuole. EY = eyespot

-

2 species 1-2 ejectosome- gutlet trichocyst

ejectosome Hillea

-

(pamelloid stage)

(zooxanthellae)

zooxanthellae

-

Mesodinium rudrum

(red tide)

(binary fission)

Cryptomonas Cryptomonas (furruw) 4 2 4 2 2 1 (haploid vegetative cells)

12 200 100 100 Lee ,Parke and Dixon Thorondson Smith

1 3 Division Cryptohyta Class Cryptophyceae Order

Goniomonadales Family Goniomonadaceae Order Cryptomonadales Family Hilleaceae Family Hemiselmidaceae Family Cryptomonadaceae Order Chroomonadales Family Hilleaceae

Family Goniomonadaceae

Order 1 Goniomonadales

Goniomonas

Genus: Small, oval, compressed, anterior end obliquely truncate; without chloroplasts; with two equal or subequal anterior flagella; colorless; contractile vacuole anterior (Kudo, 1966).

Order2 Cryptomonadales

Family1 Hileaceae

Hillea

Family 2 Hemiselmidaceae

(tranverse furrow) (gullet)

Helmiselmis

Nephroselmis

2 Protochrysis

Nephroselmis

Nephroselmis

Family3

Cryptomonadaceae

2

Cryptomonas

Chilomonas Cryptomonas saprozoic

Rhodomonas

2 1

Leucocryptos 2 (phagotrophic) Leucocryptos marina L. remigera

Plagioselmis 2

Rhinomonas 2 1 1

Teleaulax

Order 3 Chroomonadales 1 Family Choomonadaceae Chroomonas

Ochromonas

Division Cryptophyta( Cryptomonads ) 2 dinoflagellate Cryptomonads ( ---- phycobiliprotein ) ejectosome ** utrastructure

1. periplast

2.

3. blue-green, reddish, red-brown,olive-green, brown

**Species phycocyanin / phycoerythrin

1 class 3 order 12 200 / -- 100 Class Cryptophyceae order Goniomonadales order Cryptomonadales phycobiliprotein,phycoxanthrin

order Chroomonadaceae phycobilin,phycocyanin

-- 3 genus ---Chroomonas 13-15 m ---Rhodomonas 15-80 m reddish, red-brown, olivegreen, yellow brown---Cryptomonas

Red Cryptomonas = Rhodomonas?

Cryptomonas

Rhodomonas

328

Chroomonas

Polluted

326

Polluted

324