Marina CollinaUniversity of Bologna | UNIBO · School of Agriculture and Veterinary Medicine
Marina Collina
Agronomist
About
51
Publications
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426
Citations
Citations since 2017
Introduction
Skills and Expertise
Publications
Publications (51)
Abstract Fungi of genera Phlyctema and Neofabraea are the causal agents of bull's eye rot, a main postharvest disease of pome fruits. To investigate their morphological and genetic diversity, isolates obtained in Italy and Chile from decayed fruit and rainwater between 2014 and 2019 were grown on two agar media, inoculated on four fruit cultivars a...
Z. tritici first appeared in Italy later than in northern-central European countries. QoIs fungicides currently play a role in STB control, used in combination with Demethylation Inhibitors (DMIs) or Succinate dehydrogenase Inhibitors (SDHIs). In this study, we set up a fast, sensitive, and accurate ddPCR protocol in order to investigate the presen...
Downy mildew caused by Plasmopara viticola is one of the most devastating diseases of grapevine, attacking all green parts of the plant. The damage is severe when the infection at flowering stage is left uncontrolled. P. viticola management consumes a significant amount of classical pesticides applied in vineyards, requiring efficient and environme...
Abstract
Apple scab caused by Venturia inaequalis (Cke.) Wint. is the most important disease of apple trees worldwide and requires a high number of fungicide ap�plications. The G143A substitution in the inhibitor binding site of cytochrome b of V. inaequalis confers a high level of resistance to strobilurins targeting the bc1 complex. The aim of th...
Stemphylium vesicarium is the causal agent of several plant diseases as well brown spot of pear (BSP), which is one of the most economically important fungal diseases in European pear-production areas. In addition to the relevance of the economic impact, conidia spread widely from plant material infected by the pathogen can trigger respiratory alle...
Atypical scab symptoms were reported for the first time at the end of July in 2012 in Northern Italy (Cesena province, Emilia Romagna region) on fruit apple cultivar CIVG198 Modì® carrying the Rvi6 (=Vf) major resistance gene to Venturia inaequalis; it is a hybrid of ‘Gala’ x ‘Liberty’ with more than half the total world production area of cv ‘Modì...
Brown spot is one of the most serious fungal diseases that can affect pear fruits and leaves in the Po valley (Italy). Stemphylium vesicarium is the causal agent of this disease, and several antifungal treatments, repeated throughout the period between bloom and harvest, are needed to control its spread. Many of the most important pear cultivars (s...
Late blight caused by Phytophthora infestans is the most devastating disease of tomato (Solanum lycopersicum L.) and causes important economically losses if not properly controlled. Control is achieved mainly by preventive fungicide applications. However, even if curative applications are discouraged because they increase the risk of resistance dev...
Phytoplasmas and mycoplasmas are bacteria belonging to the class Mollicutes. In this study, a fine tuning of quantitative polymerase chain reaction (qPCR) with a universal mycoplasma primer pair (GPO3F/MGSO) targeting the 16S rRNA gene was carried out on phytoplasmas. The dissociation curves of DNAs from Catharanthus roseus phytoplasma-infected mic...
Neofabraea vagabunda is the prevalent cause of bull's eye rot, one of the main postharvest diseases of apple, in many producing areas, but its biology has not been studied in detail. The molecular identification, by DNA sequencing of the β-tubulin region, of forty-one isolates collected from apples showing bull's eye rot in the Emilia-Romagna Regio...
BACKGROUND: Pseudomonas syringae pv. actinidiae (Psa) is the etiologic agent of the bacterial canker of kiwifruit, the most severe disease of Actinidia spp. This pathogen was firstly recorded in Japan and in China. The initial occurrence in Italy dates back to 1992, but the most important outbreak was in 2008. From that year, Psa has spread worldwi...
Cucurbit powdery mildew caused by Golovinomyces orontii is a serious disease that affects cucurbit crops in temperate areas. In northern Italy, the species is responsible for the early infections at the beginning of the growing season. However, chasmothecia have never been recorded in Italy and the impact of either asexual or sexual reproduction of...
Bull’s eye rot is an important postharvest disease affecting apples (Malus domestica) worldwide. Fruit infection occurs in the field, but rot lesions develop only after a period in cold storage (about 90 days). The disease is caused by fungi belonging to genus Neofabraea (N. vagabunda, N. malicorticis, N. perennans, and N. kienholzii) (Spotts et al...
Unlabelled:
The objective of this work was to study the sensitivity to mandipropamid of 33 Plasmopara viticola populations utilizing both molecular and biological techniques. The PCR-RFLP technique was developed in order to detect the single point mutation, G1105S, occurring on the PvCesA3 gene. The sensitivity was also studied using the leaf-disc...
Apple scab caused by Venturia inaequalis (Cke.) Wint. is the most important disease of apple (Malus × domestica) in Turkey. To control apple scab, quinone outside inhibitor (QoI) fungicides have been used since 1998. Apple scab control failures were observed in 2005 in Mediterranean and Central Anatolian regions, where apple production is intensive...
Background:
Plasmopara viticola is controlled by fungicides with different modes of action, including carboxylic acid amides (CAAs). The aim of this study was to evaluate differences in the response of CAA-resistant P. viticola strains towards CAAs.
Results:
The G1105S mutation affects all four CAAs, but with different impacts. While this confir...
Powdery mildew is a widespread disease that causes important losses to cucurbit production. The main agents of the disease are Podosphaera xanthii and Golovinomyces orontii. To determine the occurrence of chasmothecia as overwintering forms of both fungal species in northern Italy, powdery mildew-infected samples from cultivated cucurbits were coll...
The sexual stage of Podosphaera xanthii is rarely found worldwide. However, chasmothecia are frequently recorded in northern Italy, suggesting the presence of an actively mating population. With the aim of investigating the genetic structure of the Italian population with respect to populations from other countries, genetic diversity analysis was p...
Powdery mildew, caused by Golovinomyces orontii and Podosphaera xanthii, is a widespread disease that causes important losses in cucurbit production. To determine the aetiology and the epidemiology of cucurbit powdery mildew disease in the North of Italy, observations on the occurrence of the main disease-causing fungal species were conducted durin...
The fungicide cyflufenamid (phenyl-acetamide, Fungicide Resistance Action Committee [FRAC] code U6) was approved for use in Italy in 2011 as Takumi (Certis Europe, Utrecht, The Netherlands) to control Podosphaera xanthii (Castagne) U. Braun. & N. Shishkoff, the main causal agent of cucurbit powdery mildew. Considering that strains of this pathogen...
L'oidio è la principale avversità che colpisce le Cucurbitaceae e ne limita fortemente la produzione se non adeguatamente controllata. La malattia è causata da due diversi ascomiceti: Podosphaera xanthii (Castagne) U. Braun and N. Shishkoff e Golovinomyces orontii (Castagne) V.P. Heluta. Le due specie causano gli stessi sintomi, una muffa biancastr...
RIASSUNTO: Nel corso di prove parcellari di campo ripetute in diversi anni (2007-2013) è stata valutata l'attività contro la peronospora della vite dei tradizionali prodotti di copertura organici (mancozeb, metiram, propineb, folpet, dithianon); in una parte delle prove sono stati saggiati anche formulati rameici e fluazinam. I prodotti sono stati...
Cercospora leaf spot (CLS), caused by the
fungus Cercospora beticola, is the most economically
important foliar disease of sugar beets in Italy. It can be
controlled with the integrated use of resistant varieties,
crop practices and foliar fungicides. Environmental conditions
strongly influence the activity of C. beticola in the
field; they can be...
Cucurbit powdery mildew is a widespread disease that causes
important losses to cucurbit crops. Observations on the occurrence
of Podosphaera fusca and Golovinomyces cichoracearum
were conducted in the years 2010 and 2011 in Bologna and Mantova
provinces (northern Italy) to determine the epidemiology
and etiology of powdery mildew in these importan...
We evaluated the effectiveness of soil and foliar applications of calcium chloride (CaCl2) on reducing pear susceptibility of brown spot (Stemphylium vesicarium). Two experiments were done using pear trees of the variety Abbé Fetel grafted on quince (Cydonia oblonga) rootstock. Potted trees were treated with soil and foliar application of CaCl2, wh...
Since 1999, a disease of apple caused by an Alternaria sp. has been affecting orchards in northern Italy resulting in necrotic spots on leaves and on fruit. Forty-four single-spored isolates were obtained from diseased plant materials to investigate the diversity of this fungus in Italy and to compare these isolates to isolates of Alternaria associ...
Venturia inaequalis (Cooke) Winter with reduced sensitivity to strobilurins has been reported in several countries, including Italy. This study aimed to characterise the sensitivity to strobilurins of three different types of V. inaequalis population: (a) wild types; (b) from commercial orchards satisfactorily managed with strobilurins; (c) from an...
In Stemphylium vesicarium, four phenotypes were recognized according to their in vitro responses to dicarboximide fungicides: S (sensitive), S+ (low resistant to iprodione and procymidone but moderately resistant to vinclozolin), R1 (moderately resistant to iprodione and vinclozolin but highly resistant to procymidone), R2 (highly resistant to all...
Up to 2005 the sensitivity of Stemphylium vesicarium (Wallr.) Simm., the causal agent of pear brown spot, to the strobilurin fungicides kresoxim-methyl, trifloxystrobin and pyraclostrobin
was still comparable with baseline values associated with good efficacy in the field. During 2006, the first resistant isolates
were detected in two commercial pe...
Brown spot, caused by Stemphylium vesicarium, is the main fungal disease of pear in northern Italy where it may cause severe crop losses and it requires numerous fungicide
applications. Monitoring work was performed by collecting fungal populations in Po valley between 1995 and 2003 in order to
study the dicarboximides resistance already detected i...
A dynamic model simulating the life cycle of Plasmopara viticola, from overwintering oospores to the appearance of pri- mary symptoms on grape leaves, was elaborated in order to obtain accurate and robust information about the risk for downy mildew infections during the primary inoculum season. The model was elaborated according to the systems anal...
The pear industry in Italy's north-eastern Po river region suffers from important diseases such as bacterial fire blight (Erwinia amylovora) and fungus brown spot (Stemphylium vesicarium) infections which are very difficult to control by chemical sprays. The aim of this study was to evaluate the effectiveness of soil-applied calcium chloride (CaCl2...
Control of lettuce downy mildew (Bremia lactucae) with phenylamide fungicides has failed in some intensive lettuce-producing areas in Northern Italy since Spring 1993. Before then, these chemicals and particularly metalaxyl, provided the best disease control. The sensitivity of Bremia lactucae isolates collected in such areas to metalaxyl was evalu...
Projects
Project (1)
The overall objective of the LIFE.SU.SA.FRUIT project is to develop, apply and demonstrate an economically viable strategic plan to implement integrated pest management (IPM), by promoting the use of low-chemical approaches in orchards and post-harvest fruit production in typical Croatian and Italian agro-ecosystems. The project aims to create an environmentally friendly management system for fruit production and storage, by making more efficient use of resources and ensuring food safety is not compromised.
The specific objectives are to:
- Implement innovative practices in the field (e.g. insect exclusion netting systems and biocontrol agents) and post-harvest (e.g. hot water treatments) for fruit production;
- Promote practices aimed at reducing the use of pesticides; and
- Through reduced pesticide applications, lower their environmental impact and the risk of worker exposure.
