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pathogenicity and aethiology of fusarium species ... - ePrints@USM

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LIST OF PLATES<br />

4.1 Symptoms <strong>of</strong> pokkah boeng on sugarcane leaves<br />

4.3a F. sacchari colony morphology on PDA.<br />

4.3b Macroconidia <strong>and</strong> microconidia <strong>of</strong> F. sacchari<br />

4.3c The aerial mycelium with simple <strong>and</strong> prostrate conidiophores <strong>and</strong><br />

microconidia in false heads in situ <strong>of</strong> F. sacchari<br />

4.3d Simple monophialidic <strong>and</strong> polyphialidic conidiophores <strong>of</strong> the aerial<br />

mycelium <strong>of</strong> F. sacchari<br />

4.4a F. subglutinans colony morphology on PDA. 44<br />

4.4b Oval, ellipsoid to allantoid microconidia <strong>and</strong> microconidia in false<br />

heads in situ <strong>of</strong> F. subglutinans<br />

4.4c Simple conidiophores <strong>of</strong> F. subglutinans; monophialides <strong>and</strong><br />

polyphialides<br />

4.4d The spindle-shaped macroconidia <strong>and</strong> aerial mycelium with branched<br />

conidiophores <strong>of</strong> F. subglutinans<br />

4.4e Uniform macroconidia <strong>of</strong> F. subglutinans from sporodochia 48<br />

4.5a F. proliferatum colony morphology on PDA.<br />

4.5b Conidia <strong>of</strong> F. proliferatum; microconidia with a pyriform microconidia<br />

<strong>and</strong> also microconidia <strong>of</strong> F. proliferatum borne in chains, mostly on V<br />

shape branching<br />

4.5c Conidiophores <strong>of</strong> F. proliferatum ( simple polyphialides)<br />

5.1 Chlorosis <strong>of</strong> young leaves for15 dai <strong>and</strong> 30 dai<br />

5.2 Various symptoms <strong>of</strong> pokkah boeng disease on leaves.<br />

5.3 Reddish specks within chlorotic parts <strong>and</strong> dead plant with visible<br />

mycelium <strong>of</strong> F. sacchari<br />

6.1 Transparent sectoring from fragment <strong>of</strong> mycelium on MMC<br />

6.2 Growth <strong>of</strong> wild-type parental strain (K3271U) <strong>of</strong> Fusarium sacchari<br />

<strong>and</strong> three nitrate nonutilizing (nit) mutant phenotypes from K3271U on<br />

media with one <strong>of</strong> four different nitrogen sources.<br />

6.3 Dense mycelial growth indicates complementation reaction (HSC) for<br />

strain K3247U <strong>of</strong> F. sacchari between nit1 <strong>and</strong> NitM.<br />

6.4 Incompatible between strains <strong>and</strong> identified as different VCG for<br />

R3277U <strong>and</strong> K3312U <strong>of</strong> F. sacchari<br />

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