Genus Cercospora in Thailand: Taxonomy and Phylogeny (with a ...

Fig. 39 – Line drawings of Cercospora
citrullina on Citrullus vulgaris. a. Conidiophores
and stromata. b. Conidia. Bars = 50 μm.
(Meeboon 2009).
Momordica charantia L. (Cucurbitaceae), 3
August 2008, Jamjan Meeboon (BBH 23754).;
Chiang Mai Province, Mae Jo University,
Farming area, on leaves of Citrullus vulgaris
Schrad. (Cucurbitaceae), 9 August 2008,
Jamjan Meeboon (BBH 23703).
Hosts – Apadanthera sagittifolia, Benincasa
cerifera, B. hispida, Bryoania sp.,
Bryonopsis laciniata, Citrullus lanatus, C.
vulgaris, Citrullus sp., Coccinia cordifolia, C.
indica, Ctenolepsis cerasiformis, Ctenolepsis
sp., Cucumis anguria, C. callosus, C. maxima,
C. melo, C. sativa, Cucurbita foetidissima, C.
maxima, C. moschata, C. pepo, C. perennis, C.
sativus, Lagenaria leucantha, L. siceraria, L.
vulgaris, Luffa acutangula, L. aegyptiaca, L.
amara, L. cylindrica, L. vulgaris, Melothria
pendula, Momordica charantia, M. cochinchinensis,
M. cordifolia, M. dioica, M. foetida,
M. schimperiana, Sechium edule, Sicana
odorifera, Telfaria pedata, Trichosamthes
anguina, T. japonica (Cucurbitatceae) (Crous
& Braun 2003).
Distribution – Worldwide, where the host
plants are cultivated or growing, including
Plant Pathology & Quarantine
American Samoa, Argentina, Austria,
Bangladesh, Barbados, Belize, Bolivia, Brazil,
Brunei, Bulgaria, Cambodia, Canada, Chile,
China, Cook Islands, Costa Rica, Cuba, Czech
Republic, Denmark, Dominican Republic, El
Salvador, Ethiopia, Fiji, French Polynesia,
Gabon, Georgia, Germany, Ghana, Great
Britain, Greece, Guam, Hong Kong, India,
Indonesia, Iran, Iraq, Ireland, Israel, Israel,
Italy, Jamaica, Japan, Kenya, Korea, Laos,
Malawi, Malaysia, Mauritius, Mexico,
Morocco, Myanmar, Nepal, Netherlands, New
Caledonia, New Zealand, Nicaragua, Nigeria,
Norway, Pakistan, Panama, Papua New Guinea,
Peru, Philippines, Pitcairn Island, Poland,
Puerto Rico, Romania, Russia, Samoa, Saudi
Arabia, Solomon Islands, Somalia, South
Africa, Sri Lanka, Sweden, Switzerland, Sudan,
Taiwan, Tanzania, Thailand, Togo, Tonga,
Trinidad and Tobago, Uganda, Ukraine, UK,
USA, Vanuatu, Venezuela, Virgin Islands,
Zambia, Zimbabwe (Crous & Braun 2003).
Notes – Sechium edule is reported here as
a new host of C. citrullina. Cercospora
citrullina was previously reported from
Thailand by Petcharat & Kanjanamaneesathian
(1989), and Meeboon et al. (2007b) on
Coccinia grandis. Crous & Braun (2003)
considered this species as C. apii s. lat.
Literature – Chupp (1954, p. 185), Ellis
(1976, p. 255).
Cercospora cocciniae Munjal, Lall & Chona,
Indian Phytopathol. 12: 86 (1959). Fig. 40
Leaf spots 1–5 mm diam., amphigenous,
scattered to confluent, distinct, circular to
subcircular, pale to pale brown, greyish brown
to greyish white at the center, with distinct,
yellowish brown to dark brown margins.
Caespituli epiphyllous, rarely amphigenous.
Stromata 18–29.5 μm diam., small, sometimes
rudimentary to poorly developed, composed of
a few sub-globular to irregular, brown to dark
brown cells. Conidiophores 18–108.5 × 3–5.5
μm, very variable in length, 4–15 in divergent
fascicles, 1–9-septate, arising from stromata
through the cuticle, pale olivaceous brown,
sometimes paler at the apex, straight to slightly
curved, unbranched, strongly geniculate. Coni-
diogenous cells integrated, terminal, holoblastic,
mostly polyblastic, sympodially proli-
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