CYANOPHAGES - Cyanobacteria - page 420

Table 2: Freshwater cyanophages infective against fi lamentous cyanobacteria.

Sr. No. Cyanophage Hosts Country Authors

1 LPP-1 Lyngbya sp.

Phormidium sp., and
Plectonema boryanum

USA Safferman and Morris (1963)

2 LPP-1G

(G-III)

P . boryanum Israel Padan et al . (1967)

3 P-2, P-3 and P-4 P . boryanum India Singh and Singh (1967)

4 LPP-DUN (D-1) P . boryanum Scotland Daft et al . (1970)

5 LPP-2 Lyngbya sp.,

Phormidium sp., and
P . boryanum

USA Safferman et al . (1969a)

6 LPP-3 P . boryanum Russia Mendzhul et al . (1988)

7 P-5 and P-6 P . boryanum India Singh et al . (1972)

8 LPP-2N P . boryanum USA Booth (1975)

9 AR-1 and AR-2 Anabaenopsis

raciborskii and Raphidiopsis indica

India Singh and Singh (1967)

Anabaena cylindrica

10 A-1 India Singh et al . (1972)

11 A-2 Anabaena

variabilis

Sweden Granhall and

Hofsten (1969)

12 A-4L A . variabilis Russia Khudyakov and Gromov

(1973)

13 C-1 Cylindrospermum sp. India Singh and Singh (1967)

Nostoc muscorum

14 N-1 USA Adolph and Haselkorn (1971)

15 N-2

N-L

Nostoc linckia
N. linckia

Russia
Russia

Mendzhul et al . (1983)

16 TAuHN-1 Tolypothrix tenuis , Aulosira fertilissima ,

N . muscorum , Hapalosiphon intricatus

India Kaushik and Venkataraman

(1973)

17 O-1 Oscillatoria chlorina India Trivedi and Oza (1979)

A. variabilis

18 A-1 (L) to App (L)* A. variabilis Russia Koz'yakov (1972, 1977)

19 AN-Series

10-26**

A . variabilis ,
N . linckia ,
Nostoc sp. ATCC 29131-c,
Nostoc sp. ATCC 29131-b,
Nostoc sp. ATCC 29105-a,
Nostoc sp. ATCC
29151

USA Hu et al . (1981)

20 NP-1T Nostoc sp.,

Plectonema sp.

Russaia Muradov et al . (1990a)

*Of these cyanophages all but A-1(L) and A-4(L) have been lost (See Hu et al. , 1981).
**AN-10 was isolated as a contaminating phage in the stock of A-4(L) received from USSR by Hu et al . (1981). These sixteen new
isolates exhibited variations in sensitizing the 8 strains of Anabaena variabilis and other Nostoc strains (See Hu et al ., 1981).

heads than the fi rst two. Aeromonas phages such as nt-1, kvp20, 65 and Aer 1 belong to this category
(Tétart et al ., 2001; Desplats et al ., 2002) and (iv) Exo-T-evens: Marine cyanophages such as S-PM2
that have diverged from T4 and unique for carrying “photosynthetic” genes that encode homologues
of D1 and D2 proteins of the host PSII are included here (Hambly et al ., 2001).
Siphoviridae possess phage heads with icosahedral symmetry with long fl exible or rigid non-
contractile tails with or without tail fi bers. Representatives of this family are phage lambda, T1
and T5. Phage T5 that occupies an intermediate position in between the T-even and T-odd phages,
interestingly is autonomous virulent like T-even phages but retains ordinary cytosine in its DNA