Rivista Di Frutticoltura E Di Ortofloricoltura, 2006
Abstract La possibilità di disporre di nuovi portinnesti impone quindi l'esigenza di... more Abstract La possibilità di disporre di nuovi portinnesti impone quindi l'esigenza di conoscere non solo il loro comportamento agronomico ma anche i potenziali effetti su parametri produttivi della pianta, nonché qualitativi e nutrizionali dei frutti. Per entrambe le specie la ...
The strawberry (Fragaria X ananassa, Duch.) represents a relevant source of micronutrients, such ... more The strawberry (Fragaria X ananassa, Duch.) represents a relevant source of micronutrients, such as minerals, vitamin C, folate and phenolic substances, most of which are natural antioxidants and contribute to the high nutritional quality of the fruit. All these compounds are essential for health and, in particular, strawberry phenolics are best known for their antioxidant and anti-inflammatory action, and possess directly and indirectly antimicrobial, anti-allergy and anti-hypertensive properties, as well as the capacity to inhibit the activities of some physiological enzymes and receptor properties. The main objective of this article is to review and update the current knowledge on the potential impact of the strawberry on human health, with particular attention on compounds and their possible mechanisms of action.
ABSTRACT During the last few years, the nutritional value of fruit has been widely studied and re... more ABSTRACT During the last few years, the nutritional value of fruit has been widely studied and requested by the consumers, especially for the general health benefits it can provide. In this study, offsprings from inter- and intra-specific strawberry cross combinations were studied with the aim to evaluate and identify new genotypes that can show the best compromise between sensorial and nutritional quality. Seventy-eight strawberry offsprings selection, originating from eight Fragaria spp. inter- and intra-specific crosses, were screened to study the role of the genetic origin of the parents in segregating new genotypes with an improved sensorial and nutritional quality of the fruit.
The association of a diet rich in fruit and vegetables and a reduction in the incidence of severa... more The association of a diet rich in fruit and vegetables and a reduction in the incidence of several chronic pathologies, including obesity, infections, cardiovascular and neurological diseases, and cancer has been often highlighted by many epidemiologic studies. In particular, berries have an important role among fruits because of their high phytochemical content. The most common and important berry consumed in the Mediterranean diet is strawberry, and it assumes an important role in the prevention of such chronic pathologies. This beneficial effect on the human health is due to its high content of bioactive compounds, like vitamin C, folate and phenolic constituents, most of which express relevant antioxidant capacities in vitro and in vivo. The content of all these phytochemical compounds is a measure of the Nutritional Quality of the fruit. The main phenolic compounds detected in strawberry are flavonoids (anthocyanins, flavanols and flavonols), hydrolyzable tannins (ellagitannins...
The right combination of rootstock and training system is important for increased yield and fruit... more The right combination of rootstock and training system is important for increased yield and fruit sensorial and nutritional homogeneity and quality with peach [Prunus persica (L.) Batsch]. We investigated the effects of rootstock and training system on these parameters, testing the effect of vigorous GF677 and weaker Penta rootstock on 'Rich May' peach cultivar. Fruit position effects regarding photosynthetically active radiation availability, along the canopy profile using the Y training system, were investigated. The positive relationships between total polyphenols content and antioxidant capacity according to canopy vigour and architecture were determined for the two scion/stock combinations. Changes in fruit epicarp colour and content of bioactive compounds were also determined. Lower-vigour trees from Penta rootstock grafting yielded larger fruit with improved skin overcolour, and greater total polyphenols content and antioxidant capacity. GF677 rootstock produced more vigorous trees with fruit with lower sensorial and nutritional parameters. Canopy position strongly affects fruit sensorial and nutritional qualities. These data define potential for improvements to peach production efficiency and fruit quality, particularly for southern Europe peach cultivation conditions.
... for nutritional and nutraceutical quality as already described in a large number of works car... more ... for nutritional and nutraceutical quality as already described in a large number of works carried on the evaluation of fruit nutritional parameters (Scalzo et al., 2005b; Du et al., 2009; Wang et al., 2002; Borochov-Neori et al., 2009; Hakkinen and Torronen, 2000; Capocasa et al ...
ABSTRACT The importance of the nutritional parameters evaluation of strawberry germplasm is curre... more ABSTRACT The importance of the nutritional parameters evaluation of strawberry germplasm is currently a central issue, such as for the phenol content and for antioxidant compounds. As a consequence, there is the need to develop standard analytical protocols for fruit sampling and analysis in terms of nutritional parameters. With this aim, a set of protocols for the analyses of strawberry nutritional parameters were tested, as the antioxidant capacity, phenol and anthocyanin content. The Clery cultivar was used mainly, as cultivated from three different strawberry germplasm collections, two in Italy and one in France, over three cultivation cycles. Furthermore, the genetic variability of the bioactive compounds in the old and the cultivated germplasm available from these three collections was explored over these three cultivation cycles. The results show that the new methodologies are more efficient in the extraction and analyses of bioactive compounds and also show reliability and reproducibility of these analytical methodologies for phenol and anthocyanin content, confirming their applicability for the evaluation of germplasm collections. Moreover, old strawberries evaluated show high nutritional compounds values (Tardiva di Romagna TAC 15.34 mmol/L TE – TPh 5312 mg gallic acid – ACy 746 mg Pel-3-glu), confirming old ecotypes as genetic resources of fruit nutritional traits.
The morphogenic response of somatic (leaf and petiole) and de-differentiated tissue (callus) of t... more The morphogenic response of somatic (leaf and petiole) and de-differentiated tissue (callus) of two blackberry (Rubus fruticosus) and one raspberry (Rubus idaeus) cultivars have been studied in vitro. With the aim to induce regeneration the effect of two sets of plant growth regulator (PGR) combinations (high cytokinin/auxin ratios and high auxin/cytokinin ratios) in Murashige and Skoog basal medium, were analysed.
ABSTRACT The ‘crude’ filtrate (CF) of Phytophthora cactorum containing phytotoxin(s), having some... more ABSTRACT The ‘crude’ filtrate (CF) of Phytophthora cactorum containing phytotoxin(s), having some properties similar to the toxins isolated from other Phytophthora species, was processed by three steps (acetone precipitation, dialysis and gel filtration chromatography). The CF fractions corresponding to the progressive steps of purification were tested for phytotoxicity on tomato sedlings and for activity on cell trans-membrane electrical potential (Em) of susceptible and resistant apple root stocks (Malus domestica).The fractions (F4), obtained from chromatography on Sephadex G50 fine and eluted in the zone corresponding to a molecular weight of 15 ± 2kD, induced a specific alteration on susceptible apple cell membranes. These metabolites, even though incompletely purified, are able to induce a high and specific activity on susceptible apple cell Em only, not on resistant ones. As a consequence, they may be of potential use in screening for insensitive cells.ZusammenfassungEinfluß von Partiell Geluterten Phytotoxinen von Phytophthora cactorum auf Plasmamembranen von ApfelzellenIn Rohfiltraten (CF) von Phytophthora cactorum wurden Phytotoxine mit hnlichen Eigenschaften von Toxinen anderer Phytophthora-Anen nachgewiesen. Die Filtrate wurden in einem Drei-Phasen-Prozeß fraktioniert (Azentonniederschlag, Dialyse und Gelfiltration) und bezüglich Phytotoxizitt an Tomatensmlingen und Beeinflussung des elektrischen Potentials (Em) auf Zellmembranen von anflligen und resistenten Apfelwurzelstöcken (Malus domesticus) geprüft.Die Gelfitrationsfraktion (F4) mit einem Molekulargewicht von 15 + 2 kD führte zu einer spezifischen Vernderung bei Zellmembranen der anflligen Apfelvariett. Die in der Fraktion enthaltenen P. cactorum-Metaboliten induzieren nur bei Zellmembranen von anflligen, nicht aber von resistenten, Apfelvarietten eine heftige Vernderung des elektrischen Potentials. Sie könnten deshalb auch zur Selektion von resistenten Apfelvarietten verwendet werden.
Rivista Di Frutticoltura E Di Ortofloricoltura, 2006
Abstract La possibilità di disporre di nuovi portinnesti impone quindi l'esigenza di... more Abstract La possibilità di disporre di nuovi portinnesti impone quindi l'esigenza di conoscere non solo il loro comportamento agronomico ma anche i potenziali effetti su parametri produttivi della pianta, nonché qualitativi e nutrizionali dei frutti. Per entrambe le specie la ...
The strawberry (Fragaria X ananassa, Duch.) represents a relevant source of micronutrients, such ... more The strawberry (Fragaria X ananassa, Duch.) represents a relevant source of micronutrients, such as minerals, vitamin C, folate and phenolic substances, most of which are natural antioxidants and contribute to the high nutritional quality of the fruit. All these compounds are essential for health and, in particular, strawberry phenolics are best known for their antioxidant and anti-inflammatory action, and possess directly and indirectly antimicrobial, anti-allergy and anti-hypertensive properties, as well as the capacity to inhibit the activities of some physiological enzymes and receptor properties. The main objective of this article is to review and update the current knowledge on the potential impact of the strawberry on human health, with particular attention on compounds and their possible mechanisms of action.
ABSTRACT During the last few years, the nutritional value of fruit has been widely studied and re... more ABSTRACT During the last few years, the nutritional value of fruit has been widely studied and requested by the consumers, especially for the general health benefits it can provide. In this study, offsprings from inter- and intra-specific strawberry cross combinations were studied with the aim to evaluate and identify new genotypes that can show the best compromise between sensorial and nutritional quality. Seventy-eight strawberry offsprings selection, originating from eight Fragaria spp. inter- and intra-specific crosses, were screened to study the role of the genetic origin of the parents in segregating new genotypes with an improved sensorial and nutritional quality of the fruit.
The association of a diet rich in fruit and vegetables and a reduction in the incidence of severa... more The association of a diet rich in fruit and vegetables and a reduction in the incidence of several chronic pathologies, including obesity, infections, cardiovascular and neurological diseases, and cancer has been often highlighted by many epidemiologic studies. In particular, berries have an important role among fruits because of their high phytochemical content. The most common and important berry consumed in the Mediterranean diet is strawberry, and it assumes an important role in the prevention of such chronic pathologies. This beneficial effect on the human health is due to its high content of bioactive compounds, like vitamin C, folate and phenolic constituents, most of which express relevant antioxidant capacities in vitro and in vivo. The content of all these phytochemical compounds is a measure of the Nutritional Quality of the fruit. The main phenolic compounds detected in strawberry are flavonoids (anthocyanins, flavanols and flavonols), hydrolyzable tannins (ellagitannins...
The right combination of rootstock and training system is important for increased yield and fruit... more The right combination of rootstock and training system is important for increased yield and fruit sensorial and nutritional homogeneity and quality with peach [Prunus persica (L.) Batsch]. We investigated the effects of rootstock and training system on these parameters, testing the effect of vigorous GF677 and weaker Penta rootstock on 'Rich May' peach cultivar. Fruit position effects regarding photosynthetically active radiation availability, along the canopy profile using the Y training system, were investigated. The positive relationships between total polyphenols content and antioxidant capacity according to canopy vigour and architecture were determined for the two scion/stock combinations. Changes in fruit epicarp colour and content of bioactive compounds were also determined. Lower-vigour trees from Penta rootstock grafting yielded larger fruit with improved skin overcolour, and greater total polyphenols content and antioxidant capacity. GF677 rootstock produced more vigorous trees with fruit with lower sensorial and nutritional parameters. Canopy position strongly affects fruit sensorial and nutritional qualities. These data define potential for improvements to peach production efficiency and fruit quality, particularly for southern Europe peach cultivation conditions.
... for nutritional and nutraceutical quality as already described in a large number of works car... more ... for nutritional and nutraceutical quality as already described in a large number of works carried on the evaluation of fruit nutritional parameters (Scalzo et al., 2005b; Du et al., 2009; Wang et al., 2002; Borochov-Neori et al., 2009; Hakkinen and Torronen, 2000; Capocasa et al ...
ABSTRACT The importance of the nutritional parameters evaluation of strawberry germplasm is curre... more ABSTRACT The importance of the nutritional parameters evaluation of strawberry germplasm is currently a central issue, such as for the phenol content and for antioxidant compounds. As a consequence, there is the need to develop standard analytical protocols for fruit sampling and analysis in terms of nutritional parameters. With this aim, a set of protocols for the analyses of strawberry nutritional parameters were tested, as the antioxidant capacity, phenol and anthocyanin content. The Clery cultivar was used mainly, as cultivated from three different strawberry germplasm collections, two in Italy and one in France, over three cultivation cycles. Furthermore, the genetic variability of the bioactive compounds in the old and the cultivated germplasm available from these three collections was explored over these three cultivation cycles. The results show that the new methodologies are more efficient in the extraction and analyses of bioactive compounds and also show reliability and reproducibility of these analytical methodologies for phenol and anthocyanin content, confirming their applicability for the evaluation of germplasm collections. Moreover, old strawberries evaluated show high nutritional compounds values (Tardiva di Romagna TAC 15.34 mmol/L TE – TPh 5312 mg gallic acid – ACy 746 mg Pel-3-glu), confirming old ecotypes as genetic resources of fruit nutritional traits.
The morphogenic response of somatic (leaf and petiole) and de-differentiated tissue (callus) of t... more The morphogenic response of somatic (leaf and petiole) and de-differentiated tissue (callus) of two blackberry (Rubus fruticosus) and one raspberry (Rubus idaeus) cultivars have been studied in vitro. With the aim to induce regeneration the effect of two sets of plant growth regulator (PGR) combinations (high cytokinin/auxin ratios and high auxin/cytokinin ratios) in Murashige and Skoog basal medium, were analysed.
ABSTRACT The ‘crude’ filtrate (CF) of Phytophthora cactorum containing phytotoxin(s), having some... more ABSTRACT The ‘crude’ filtrate (CF) of Phytophthora cactorum containing phytotoxin(s), having some properties similar to the toxins isolated from other Phytophthora species, was processed by three steps (acetone precipitation, dialysis and gel filtration chromatography). The CF fractions corresponding to the progressive steps of purification were tested for phytotoxicity on tomato sedlings and for activity on cell trans-membrane electrical potential (Em) of susceptible and resistant apple root stocks (Malus domestica).The fractions (F4), obtained from chromatography on Sephadex G50 fine and eluted in the zone corresponding to a molecular weight of 15 ± 2kD, induced a specific alteration on susceptible apple cell membranes. These metabolites, even though incompletely purified, are able to induce a high and specific activity on susceptible apple cell Em only, not on resistant ones. As a consequence, they may be of potential use in screening for insensitive cells.ZusammenfassungEinfluß von Partiell Geluterten Phytotoxinen von Phytophthora cactorum auf Plasmamembranen von ApfelzellenIn Rohfiltraten (CF) von Phytophthora cactorum wurden Phytotoxine mit hnlichen Eigenschaften von Toxinen anderer Phytophthora-Anen nachgewiesen. Die Filtrate wurden in einem Drei-Phasen-Prozeß fraktioniert (Azentonniederschlag, Dialyse und Gelfiltration) und bezüglich Phytotoxizitt an Tomatensmlingen und Beeinflussung des elektrischen Potentials (Em) auf Zellmembranen von anflligen und resistenten Apfelwurzelstöcken (Malus domesticus) geprüft.Die Gelfitrationsfraktion (F4) mit einem Molekulargewicht von 15 + 2 kD führte zu einer spezifischen Vernderung bei Zellmembranen der anflligen Apfelvariett. Die in der Fraktion enthaltenen P. cactorum-Metaboliten induzieren nur bei Zellmembranen von anflligen, nicht aber von resistenten, Apfelvarietten eine heftige Vernderung des elektrischen Potentials. Sie könnten deshalb auch zur Selektion von resistenten Apfelvarietten verwendet werden.
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