In central Italy, Platanus orientalis L. specimens characterize many gardens in urban and suburban villas. In this research, centuries-old oriental plane trees were studied in different historical sites of Lazio according to the COVE (COnservation of VEteran trees) multidisciplinary model. Historical sources, morphological and dendrometric aspects, crown quality, genetic traits of each specimen, as well as their susceptibility to the canker stain disease, were investigated. Platanus orientalis was clearly distinguished from P. occidentalis and their hybrid P. acerifolia through molecular tools. UPGMA analysis based on SSR and ISSR molecular markers clustered the plane trees in different sub-groups, probably according to the different sites of sampling. These findings, supported by historical and morphological data collected in the considered sites, showed that almost all the trees studied are a small remnant of those planted in the period running from the second half of XVI century to the first decades of XVII century. Plant health conditions diverge within and among the sites inspected. Past-prolonged severe pruning treatments of trees located near the main monuments affected their growth, causing faster and premature senescence. However, the management of historical gardens has so far led to an efficient prevention of Ceratocystis platani introduction, spread and establishment. This study highlights the importance of a multidisciplinary approach to interpret the present status of the ancient tree asset within historical sites and let the past become a lesson for the future in a broader scenario of conservation and management of cultural heritage.

Dimensional and genetic characterization of the last oriental plane trees (Platanus orientalis L.) of historical sites in Lazio (central Italy)

Antonio Tomao;
2022-01-01

Abstract

In central Italy, Platanus orientalis L. specimens characterize many gardens in urban and suburban villas. In this research, centuries-old oriental plane trees were studied in different historical sites of Lazio according to the COVE (COnservation of VEteran trees) multidisciplinary model. Historical sources, morphological and dendrometric aspects, crown quality, genetic traits of each specimen, as well as their susceptibility to the canker stain disease, were investigated. Platanus orientalis was clearly distinguished from P. occidentalis and their hybrid P. acerifolia through molecular tools. UPGMA analysis based on SSR and ISSR molecular markers clustered the plane trees in different sub-groups, probably according to the different sites of sampling. These findings, supported by historical and morphological data collected in the considered sites, showed that almost all the trees studied are a small remnant of those planted in the period running from the second half of XVI century to the first decades of XVII century. Plant health conditions diverge within and among the sites inspected. Past-prolonged severe pruning treatments of trees located near the main monuments affected their growth, causing faster and premature senescence. However, the management of historical gardens has so far led to an efficient prevention of Ceratocystis platani introduction, spread and establishment. This study highlights the importance of a multidisciplinary approach to interpret the present status of the ancient tree asset within historical sites and let the past become a lesson for the future in a broader scenario of conservation and management of cultural heritage.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/1242064
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