Prymnesio- / Haptophyta Flashcards
1
Q
difference in pigments between Ochrophyta and Haptophyta?
other differences?
A
- fucoxanthin and its derivates
- presence of haptonema and coccoliths in Haptophyta
2
Q
what is that? how can you tell?
A
- Haptophyta
- unicellular
- 2 smmooth flagella (apical)
- 1 (here: coiled) haptonema
- cell wall covered with scales
3
Q
do haptophytes have 3 flagella?
A
- 2 flagella
1. smooth
2. can have the same length = isokont
3. can have diff. lengths = heterokont
4. apically or subapically - 1 haptonema
4
Q
what is a haptonema?
A
5
Q
functions of haptonema
A
6
Q
movement of haptonema
A
- coiling: when it recognizes obstacles
- bending: for capturing food
7
Q
cell wall of haptophyta
A
- nude
- covered with several layers of scales
8
Q
what is that?
A
organic scale of Haptophyta
9
Q
where are scales formed?
A
- in Golgi bodies
- release is continuous
- scales are continuously renewed (coccoliths fall off)
10
Q
important for characterization of Coccolithophycean?
A
- shape of scale
- coccosphere (arrangement of structure)
11
Q
what’s the functions of coccoliths?
A
12
Q
what is a coccosphere?
A
the arrangement of a coccolith to form a structure
13
Q
how can the coccosphere be divided?
A
14
Q
what is that?
A
dimorphic Coccolithophycean
15
Q
A
dimorphic Coccolithophycean
16
Q
A
dimorphic Coccolithophycean
or dithecate
17
Q
A
maybe dithecate Coccolithophycean? ( 2 layers of diff. coccoliths)
18
Q
what are these?
A
- different species of Coccolithophyceans
- specific features
