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The objective of this work was to visualize the association between microcracking and other epidermal chilling injury symptoms, and to identify rots in cucumber fruit (Cucumis sativus L.) by scanning electron microscopy (SEM). Depressed epidermal areas and surface cracking due to damages of subepidermal cells characterized the onset of pitting in cucumber fruit. The germination of conidia of Alternaria alternata, with some of them evident on the fractures in the cultivar Trópico, occurred after damaging on the epidermis. Before, the chilling injury symptoms became visible, Stemphylium herbarum conidia germinated, and mycelium penetrated through the hypodermis using the microcracks as pathway. In the cultivar Perichán 121 the fungus was identified as Botrytis cinerea. O objetivo deste trabalho foi visualizar a associação entre microfissuras e outros sintomas na epiderme, induzidos pelo frio, e identificar as podridões de pepino (Cucumis sativus L.) por microscopia eletrônica de varredura. O início do desenvolvimento da lesão em pepino é caracterizado por depressões epidérmicas e pelo fendilhamento superficial, provocado pelo colapso das células subepidérmicas. A germinação dos conídios de Alternaria alternata, localizados nas fendas de pepino cultivar Trópico, ocorreu após o início do desenvolvimento dos sintomas dos danos, causados pelo frio, na epiderme do fruto. A germinação dos conídios de Stemphylium herbarum e a penetração do micélio na hipoderme pelas microfissuras ocorreram antes de os sintomas dos danos causados pelo frio se tornarem visíveis. Na cultivar Perichán 121 observou-se o fungo Botrytis cinerea

Necrotrophic fungi associated with epidermal microcracking caused by chilling injury in pickling cucumber fruit