Leaf fungi of two wild plants in Assiut, Egypt

Abstract

Leaves of two wild species of the flora of Egypt: Calotropis procera (Ait.) Ait., Asclepiadaceae and Chrozophora plicata (Vahl) A.Juss. ex Spreng., Euphorbiaceae have been studied morphologically and mycologically, in addtion to air borne fungi. Fifty five species and two varieties belonging to 26 genera of phyllosphere and phylloplane fungi were isolated from both plant species on glucose‐ and cellulose‐agar media. Mycological analysis was done monthly over six months (July to December, 2003). Alternaria alternata, Aspergillus fumigatus, A. flavus and A. niger were the basic fungal species found on leaf surfaces. Phylloplane of C. plicata caught specifically Chaetomium globosum, C. spirale, Cochliobolus lunatus, Drechslera halodes, Fusarium incarnatum, F. oxysporum, Memnoniella echinata and Papulaspora sepedonioides.The total counts of phyllosphere fungi of C. plicata were nearly twice as much as those of C. procera regardless medium's type.Forty species and one variety belonging to 22 genera of air borne fungi were recovered all over the experimental period (six months). Alternaria, Aspergillus, Cladosporium and Penicillium were the most frequently isolated species. The presented results revealed that, leaf shape and density (hair density and type) may be the most important factors of the biodiversity of the fungal species on the studied taxa. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Biological and mycobiota characters of some medicinal plants from Yemen

“…Generally, growth and abundance of phylloplane fungi are depending on nutrients exuded from the leaf and also influenced by environmental conditions such as water availability, UV radiation and temperature (NEWSHAM et al 1997;BELANGER & AVIS 2002;KOITABASHI et al 2002;SUNDIN 2002;ZAK 2002;OSONO 2006). Several studies have described the phylloplane populations from various plant species all over the world among these are: EL NAG- GAR et al 1993;ABDEL-HAFEZ & EL NAGGAR 2001, 2006DE JAGER et al 2001;ANDREWS et al 2002;INACIO et al 2002;PEREIRA et al 2002;EL NAGGAR & ABEL HAFEZ 2003HEMIDA 2004;EL ZAYAT et al 2008. Such as these studies in Yemen, are very scare (EL SAID 1994;AL-HUBAISHI & ABDEL-KADER 1999;ALGHALIBI & SHATER 2004).…”