Q.89
Microbiology- ICAR JRF/SRF 2024
Match the Following
Match List-I with List-II:

Choose the correct answer from the options given below:

List - I सूची - I
Group characteristics List-I (Group characteristics
List - II सूची - II
Genus representing the group List-II (Genus representing the group
A Baeocytes Baeocytes I *Nodularia* *Nodularia*
B Filamentous, binary fission in single plane Filamentous, binary fission in single plane II *Gloeothece* *Gloeothece*
C Filamentous, produce heterocysts Filamentous, produce heterocysts III *Fischerella* *Fischerella*
D Cells divide in multiple planes, form branching filaments Cells divide in multiple planes, form branching filaments IV *Pleurocapsa* *Pleurocapsa*
E Unicellular or cellular aggregates Unicellular or cellular aggregates V *Lyngbya* *Lyngbya*
  • Cyanobacterial Classification (Rippka et al., 1979 / Bergey's Manual):
  • Sectional Characteristics and Representative Genera:
  • Baeocytes $\rightarrow$ (IV) Pleurocapsa: Section II (Pleurocapsalean cyanobacteria) reproduce by multiple fission of mother cells into small spherical disseminules called baeocytes.
  • Filamentous, binary fission in single plane $\rightarrow$ (V) Lyngbya: Section III (Oscillatoriales) form unbranched, non-heterocystous filaments dividing in one plane.
  • Filamentous, produce heterocysts $\rightarrow$ (I) Nodularia: Section IV (Nostocales) produce specialized dinitrogen-fixing heterocysts and unbranched filaments.
  • Cells divide in multiple planes, form branching filaments $\rightarrow$ (III) Fischerella: Section V (Stigonematales) divide in multiple planes to form true-branching, multiseriate filaments.
  • Unicellular or cellular aggregates $\rightarrow$ (II) Gloeothece: Section I (Chroococcales) are unicellular or colonial aggregates enclosed in mucilaginous sheaths.
  • Correct Choice: Option 2 maps (A)-(IV), (B)-(V), (C)-(I), (D)-(III), (E)-(II).

Correct option: (2) (A) - (IV), (B) - (V), (C) - (), (B) - (HI, (E) - )

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