Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.creatorBelan, Leônidas Leoni-
dc.creatorPozza, Edson Ampélio-
dc.creatorFreitas, Marcelo Loran de Oliveira-
dc.creatorPozza, Adélia Aziz Alexandre-
dc.creatorAbreu, Mário Sobral de-
dc.creatorAlves, Eduardo-
dc.identifier.citationBELAN, L. L. et al. Nutrients distribution in diseased coffee leaf tissue. Australasian Plant Pathology, [S.l.], v. 44, n. 1, p. 105-111, Jan. 2015.pt_BR
dc.description.abstractKnowing the structure and distribution of nutrients in plant tissues can clarify some mechanisms of pathogen attack in plants and plant defense against infection, thus helping management strategies. The aim of this study was verify differences in distribution of mineral nutrients in coffee leaf tissues around foliar lesions of bacterial blight of coffee, blister spot, cercospora leaf, phoma leaf spot and coffee leaf rust. Fragments of leaf tissue surrounding the lesions were dehydrated in silica gel, carbon covered and subjected to X-ray microanalysis (MAX). Thirty-three chemical elements were detected in leaf tissue; however, there was variation in potassium and calcium contents surrounding the lesions. The highest potassium content was found in asymptomatic tissues surrounding the lesions, decreasing toward the transition zone and reaching minimum content in symptomatic tissues. The highest calcium content was found in symptomatic tissues, decreasing toward the transition zone and reaching minimum content in asymptomatic tissues. Therefore, MAX can be used to analyze the composition and distribution of nutrients in plant tissues and, if associated with mineral nutrition, it may help understand host-pathogen relationships and plant disease management.pt_BR
dc.sourceAustralasian Plant Pathologypt_BR
dc.subjectPseudomonas syringae pv. garcaept_BR
dc.subjectPhoma tardapt_BR
dc.subjectCercospora coffeicolapt_BR
dc.subjectCercospora coffeicolapt_BR
dc.subjectPlant nutritionpt_BR
dc.subjectElemental compositionpt_BR
dc.titleNutrients distribution in diseased coffee leaf tissuept_BR
Appears in Collections:DCS - Artigos publicados em periódicos
DFP - Artigos publicados em periódicos

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.