![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
ABSTRACT
Light and scanning electron microscopy showed that conidiogenesis is holoblastic in the Ephelis states of Balansia epichloë, B. henningsiana, B. pilulaeformis, B. strangulans, and Atkinsonella hypoxylon; phialidic in the Sphacelia states of Claviceps purpurea and Epichloë typhina, and of A. hypoxylon, which produces both conidial states. Balansia strangulans produces a continuous palisade of conidiophores over the surface of the stroma and beneath an evanescent peridial layer. In B. epichloë and B. henningsiana, sterile ridges separate the conidiophore palisade into flat, hysteriform cavities in the surface of the stroma. In a previously unreported Ephelis state of B. pilulaeformis (=Balansiopsis pilulaeformis), conidiophores are restricted to small discoid cavities in the stroma. Atkinsonella hypoxylon produces apothecioid conidiomata in specialized protuberances from the stroma, as does B. claviceps (anamorph = E. mexicana, type of the genus Ephelis). In the Sphacelia state of C. purpurea conidiophores line chambers in the stroma, but in the Sphacelia states of Epichloë typhina and A. hypoxylon they are borne on the surface of a smooth stroma.
Key Words: