Russeting in Apple Is Initiated After Exposure to Moisture Ends—I. Histological Evidence

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dc.identifier.uri Chen, Yun-Hao Straube, Jannis Khanal, Bishnu P. Knoche, Moritz Debener, Thomas 2021-06-22T08:11:57Z 2021-06-22T08:11:57Z 2020
dc.identifier.citation Chen, Y.-H.; Straube, J.; Khanal, B.P.; Knoche, M.; Debener, T.: Russeting in Apple Is Initiated After Exposure to Moisture Ends—I. Histological Evidence. In: Plants 9 (2020), Nr. 10, 1293. DOI:
dc.description.abstract Russeting (periderm formation) is a critical fruit-surface disorder in apple (Malus × domestica Borkh.). The first symptom of insipient russeting is cuticular microcracking. Humid and rainy weather increases russeting. The aim was to determine the ontogeny of moisture-induced russeting in ‘Pinova’ apple. We recorded the effects of duration of exposure to water and the stage of fruit development at exposure on microcracking, periderm formation and cuticle deposition. Early on (21 or 31 days after full bloom; DAFB) short periods (2 to 12 d) of moisture exposure induced cuticular microcracking—but not later on (66 or 93 DAFB). A periderm was not formed during moisture exposure but 4 d after exposure ended. A periderm was formed in the hypodermis beneath a microcrack. Russeting frequency and severity were low for up to 4 d of moisture exposure but increased after 6 d. Cuticle thickness was not affected by moisture for up to 8 d but decreased for longer exposures. Cuticular ridge thickness decreased around a microcrack. In general, moisture did not affect cuticular strain release. We conclude that a hypodermal periderm forms after termination of moisture exposure and after microcrack formation. Reduced cuticle deposition may cause moisture-induced microcracking and, thus, russeting. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. eng
dc.language.iso eng
dc.publisher Basel : MDPI AG
dc.relation.ispartofseries Plants 9 (2020), Nr. 10
dc.rights CC BY 4.0 Unported
dc.subject Cuticle eng
dc.subject Malus √ó domestica eng
dc.subject Periderm eng
dc.subject Russeting eng
dc.subject Strain eng
dc.subject Surface moisture eng
dc.subject.ddc 580 | Pflanzen (Botanik) ger
dc.title Russeting in Apple Is Initiated After Exposure to Moisture Ends—I. Histological Evidence
dc.type Article
dc.type Text
dc.relation.essn 2223-7747
dc.bibliographicCitation.issue 10
dc.bibliographicCitation.volume 9
dc.bibliographicCitation.firstPage 1293
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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