Australian red cedar plants (Toona ciliata var. australis) grown in Piatã, in the region of Chapada Diamantina, Bahia State, Brazil, have been affected by a rot that attacks the plant root collar and roots. The symptoms begin in the plant basal region, causing darkened lesions which will later rot the bark and roots (Fig. 1A). These lesions will evolve to what is called trunk annealing which, in association with the root rot, may cause the plant death. Generalized leaf yellowing can be observed in the canopy, causing the leaves to dry. This disease occurs more frequently in the drier periods of the year and has caused the death of approximately 10 % of the planted area; as a consequence, it might render cedar cultivation unviable in that region.Root samples were collected and microscopic examinations revealed the presence of a whitish fungal mycelium containing conidiophores and long conidia, which were isolated in potato dextrose agar (PDA) culture medium and identified as belonging to the genus Cylindrocladium. To determine the species, small fragments of the PDA medium containing fungal structures were plated onto Petri dishes containing clove leaf-agar medium (CLA) and incubated for fifteen A B C D E
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.