Division rhodophyta ppt Dissertation

Section rhodophyta ppt

SPLIT RHODOPHYTA

(RED ALGAE)

RHODOPYTA (RED ALGAE)

Red wrack have been the very first eukaryotes

produced by endosymbiosis involving

photosynthetic prokaryotes.

Red algae are mainly multicellular

It exhibit probably the most complex lifestyle

cycles

It posses cellulose walls, blattgrun a, some

posses blattgrun d (chloroplast is present

nevertheless lacks grana)

Contains phycoerythrin, phycocyanin and

allophycocyanin because accessory colors.

flagella can be absent in red climber as well as

centrioles

5, 500 species(approximate quantity

of noted species) happen to be exclusively

underwater, abundant in clean and nice

water.

Different species may be:

a. Cost-free living

n. Epiphytic; or perhaps

c. Parasitic

STRUCTURE OF RED ALGAE

Primarily feathery

Branched-filamentous, sometimes

ribbon-like with gelatinous suface

Less space-consuming than most darkish algae

Rarely more than 3 or 4 ft. lengthy

Red in color, due to phycoerythrin

-a red color

present with chlorophyll

The cell surfaces of Reddish colored algae:

> have cellulose as a structure but are mostly

containing mucilages contains agars and

carrageenans, both of that happen to be polysaccharide.

Offered

as food many

thickeners.

> Corallinered algae that form

layers of calcium mineral carbonate inside their cell

surfaces.

> Phycobilins and caratenoids gives various

red wrack.

Eg. Rhodymenia pseudopalmata- reddish colored or

lilac in color

> Halosaccion- species which often not consist of

as much as those accessory pigments,

often blue-green or olive.

a. coralline

c. Halosaccion

b. Rhodymenia

pseudopalmata

REPRODUCTION

Asexual reproduction- by nonmotile spores

Sexual reproduction- by simply non-motile

heterogametes

Male gametes- are spherical, non-motile,

produced in antheridia.

-Carried by drinking water to

feminine sex body organ

Carpognia- girl sex body organ of red algae,

that, when fertilized, gives rise to

carpospores.

Trichogyne- the elongated idea of

carpognium, to which a sperm may adhere.

LIFESTYLE CYCLE OF RED WRACK

Consists of two alternating phases:

1 . Haploid, gamete-bearing plant life

2 . Diploid, tetrasporic plant life

oTetrasporophyte- one of many sporophyte

stages

> Tetraspores- spores developed

by tetrasporophyte

> simply by meiosis

Demeure and circulation

> Primarily warmer by waters of oceans. Couple of fresh marine environments. Often for great absolute depths.

ECOLOGICAL AND ECONOMICAL

NEED FOR RED CLIMBER:

It is known as a primary manufacturer, provider by

structural habitat for the marine creatures

Plays an important role inside the primary

establishment and maintenance of coral saltwater

Food pertaining to sea animals and guy

Used in shoe enhance, cosmetics, glue,

confections, jellies

Evolutionary importance of red wrack

The importance of red climber lies in their very own

highly specific reproductive strategies and in

certain alternation of generations which in turn occur

some of them.

REPORTERS:

GENOTA, ALECKS

JACOB, FRANSCINE SU-YEN C.

PD-R2B