The objective of this work was to accomplish the micromorphological characterization of the causal agent of the algal spot in ‘Amrapali’ mango trees. Therefore, ‘Amrapali’ mango leaves exhibiting symptoms of algal spots were used for making microscope slides, on which the pathogen somatic and reproductive structures were measured. The dimensions obtained for sporangiophores and sporangia were 245.5-545.6 × 10.5-19.1 μm and 21.4-34.2 × 16.3-24.7 μm, respectively. Descriptions based on symptoms and micromorphology indicated that the algae are Cephaleuros virescens, since this morphological data corroborates with literature descriptions. Besides, the algae had already identified by DNA sequencing as C. virescens.

Diseases are considered one of the main factors that limit the productivity of the Eucalyptus sp. Thus, the objective was to carry out a scientometric analysis of the articles, focusing on the eleven main pathogens that affect the eucalyptus culture. For the development of this study, specialized searches were carried out on the “Web of Science” database using the scientific names of pathogens and eucalyptus as key words. In the general search, a result of 123 articles published between 2000 and 2020 was obtained, with Mycosphaerella spp., Ceratocystis fimbriata, Botryosphaeria ribis and Cylindrocladium spp., The pathogens with the highest number of published works and also citations. Regarding the citations / article, Botryosphaeria ribis (average of 68.80 citations / article), Mycosphaerella spp. (average of 34.57 citations / article) and Cylindrocladium spp. (average of 27.12 citations / article). Regarding the journals, a total of 38 journals were responsible for the published works, with nine of them concentrating 60% of the total of published articles.

A antracnose tem sido relatada como a principal doença pré e pós-colheita da manga, atacando folhas e frutos. Este trabalho objetivou realizar a caracterização fisiológica e patogênica de cinco isolados de Colletotrichum gloeosporioides da mangueira cv. Amrapali. Para a caracterização fisiológica, os isolados foram cultivados sob diferentes regimes de luz (0h, 12h e 24h) a 25°C, em que medições diárias até o 6 DAI (Dias após inoculação) foram feitas para obtenção de medias de crescimento micelial, e aos 6 DAI quantificação de esporos. Em seguida foi avaliado o potencial patogênico dos isolados através de medições de lesões na face adaxial das folhas aos 2, 4, 6, 8 e 10 DAI. Ambas as avaliações foram conduzidas em delineamento inteiramente casualizado. Isolados de C. gloeosporioides cultivados sob o regime de 12 horas luz e sob a temperatura de 25°C obtiveram melhor desenvolvimento fisiológico e o maior desenvolvimento patogênico no regime de 0 horas de luz.

Objective: To carry out a scientometric analysis of published articles that report the occurrence of the fungus Colletotrichum gloeosporioides from 11 different fruits.