Ultrastructural aspects in perithecia hyphae septal pores of Glomerella cingulata F. SP. Phaseoli

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Roca M.,María Gabriela ; Ongarelli,Maria das Graças ; Davide,Lisete Chamma ; Mendes-Costa,Maria Cristina (2000)
  • Publisher: Sociedade Brasileira de Microbiologia
  • Journal: (issn: 1517-8382, eissn: 1678-4405)
  • Subject: Colletotrichum lindemuthianum | Microbiology | septal pores | QR1-502 | transmission electron microscopy | Glomerella cingulata | bean anthracnose

Glomerella cingulata (Stonem.) Spauld. & Schrenk f. sp. phaseoli, better known in its anamorphic state Colletotrichum lindemuthianum (Sacc. & Magn.) Briosi & Cav., is a causal agent of anthracnose in beans (Phaseolus vulgaris L.). Ultrastructural aspects of the perithecial hyphae of this pathogen were studied. The perithecia hyphae septal pores were found either plugged by a vesicle or unplugged. Some perithecia hyphae septa presented no pore. The Woronin bodies, close to the septal pores, appeared as globose structures which were more electron dense than the occlusions plugging the septal pore.
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