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Chitosan, antifungal product against Fusarium oxysporum f. sp. albedinis and elicitor of defence reactions in date palm roots Phoenix dactylifera L.; Morocco
by
El Hassni, M. (Université Cadi Ayyad, Marrakech (Morocco). Lab. de Physiologie Végétale)
, Daayf, F. (Manitoba Univ., Winnipeg (Canada). Dept. of Plant Science)
, El Hadrami, A. (Manitoba Univ., Winnipeg (Canada). Dept. of Plant Science)
, El Hadrami, I. (Université Cadi Ayyad, Marrakech (Morocco). Lab. de Physiologie Végétale)
, Barka, E.A. (Université de Reims (France). Lab. De Physiologie Végétale)
in
ACIDE CINNAMIQUE
/ acidi cinnamici
/ ACIDOS CINAMICOS
/ catechol oxidase
/ CATECHOL OXYDASE
/ CATECOL OXIDASA
/ catecolossidasi
/ chitin
/ chitina
/ CHITINE
/ cinnamic acids
/ COMPOSE PHENOLIQUE
/ composti fenolici
/ COMPUESTOS FENOLICOS
/ CRECIMIENTO
/ crescita
/ CROISSANCE
/ disease resistance
/ ENFERMEDADES FUNGOSAS
/ EXPERIMENTACION EN LABORATORIO
/ EXPERIMENTATION EN LABORATOIRE
/ fitoalessine
/ FITOALEXINA
/ fungal diseases
/ fusarium oxysporum
/ growth
/ induced resistance
/ INHIBICION
/ inhibition
/ inibizione
/ laboratory experimentation
/ MALADIE FONGIQUE
/ malattie fungine
/ MAROC
/ marocco
/ MARRUECOS
/ micelio
/ morocco
/ mycelium
/ perossidasi
/ PEROXIDASAS
/ peroxidases
/ PEROXYDASE
/ phenolic compounds
/ phoenix dactylifera
/ PHYTOALEXINE
/ phytoalexins
/ QUITINA
/ RACINE
/ radici
/ RAICES
/ RESEARCH PAPERS
/ RESISTANCE AUX MALADIES
/ RESISTANCE INDUITE
/ RESISTENCIA A LA ENFERMEDAD
/ RESISTENCIA INDUCIDA
/ resistenza alle malattie
/ resistenza indotta
/ roots
/ sperimentazione in laboratorio
/ xilema
/ xylem
/ XYLEME
2004
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Chitosan, antifungal product against Fusarium oxysporum f. sp. albedinis and elicitor of defence reactions in date palm roots Phoenix dactylifera L.; Morocco
by
El Hassni, M. (Université Cadi Ayyad, Marrakech (Morocco). Lab. de Physiologie Végétale)
, Daayf, F. (Manitoba Univ., Winnipeg (Canada). Dept. of Plant Science)
, El Hadrami, A. (Manitoba Univ., Winnipeg (Canada). Dept. of Plant Science)
, El Hadrami, I. (Université Cadi Ayyad, Marrakech (Morocco). Lab. de Physiologie Végétale)
, Barka, E.A. (Université de Reims (France). Lab. De Physiologie Végétale)
in
ACIDE CINNAMIQUE
/ acidi cinnamici
/ ACIDOS CINAMICOS
/ catechol oxidase
/ CATECHOL OXYDASE
/ CATECOL OXIDASA
/ catecolossidasi
/ chitin
/ chitina
/ CHITINE
/ cinnamic acids
/ COMPOSE PHENOLIQUE
/ composti fenolici
/ COMPUESTOS FENOLICOS
/ CRECIMIENTO
/ crescita
/ CROISSANCE
/ disease resistance
/ ENFERMEDADES FUNGOSAS
/ EXPERIMENTACION EN LABORATORIO
/ EXPERIMENTATION EN LABORATOIRE
/ fitoalessine
/ FITOALEXINA
/ fungal diseases
/ fusarium oxysporum
/ growth
/ induced resistance
/ INHIBICION
/ inhibition
/ inibizione
/ laboratory experimentation
/ MALADIE FONGIQUE
/ malattie fungine
/ MAROC
/ marocco
/ MARRUECOS
/ micelio
/ morocco
/ mycelium
/ perossidasi
/ PEROXIDASAS
/ peroxidases
/ PEROXYDASE
/ phenolic compounds
/ phoenix dactylifera
/ PHYTOALEXINE
/ phytoalexins
/ QUITINA
/ RACINE
/ radici
/ RAICES
/ RESEARCH PAPERS
/ RESISTANCE AUX MALADIES
/ RESISTANCE INDUITE
/ RESISTENCIA A LA ENFERMEDAD
/ RESISTENCIA INDUCIDA
/ resistenza alle malattie
/ resistenza indotta
/ roots
/ sperimentazione in laboratorio
/ xilema
/ xylem
/ XYLEME
2004
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Chitosan, antifungal product against Fusarium oxysporum f. sp. albedinis and elicitor of defence reactions in date palm roots Phoenix dactylifera L.; Morocco
by
El Hassni, M. (Université Cadi Ayyad, Marrakech (Morocco). Lab. de Physiologie Végétale)
, Daayf, F. (Manitoba Univ., Winnipeg (Canada). Dept. of Plant Science)
, El Hadrami, A. (Manitoba Univ., Winnipeg (Canada). Dept. of Plant Science)
, El Hadrami, I. (Université Cadi Ayyad, Marrakech (Morocco). Lab. de Physiologie Végétale)
, Barka, E.A. (Université de Reims (France). Lab. De Physiologie Végétale)
in
ACIDE CINNAMIQUE
/ acidi cinnamici
/ ACIDOS CINAMICOS
/ catechol oxidase
/ CATECHOL OXYDASE
/ CATECOL OXIDASA
/ catecolossidasi
/ chitin
/ chitina
/ CHITINE
/ cinnamic acids
/ COMPOSE PHENOLIQUE
/ composti fenolici
/ COMPUESTOS FENOLICOS
/ CRECIMIENTO
/ crescita
/ CROISSANCE
/ disease resistance
/ ENFERMEDADES FUNGOSAS
/ EXPERIMENTACION EN LABORATORIO
/ EXPERIMENTATION EN LABORATOIRE
/ fitoalessine
/ FITOALEXINA
/ fungal diseases
/ fusarium oxysporum
/ growth
/ induced resistance
/ INHIBICION
/ inhibition
/ inibizione
/ laboratory experimentation
/ MALADIE FONGIQUE
/ malattie fungine
/ MAROC
/ marocco
/ MARRUECOS
/ micelio
/ morocco
/ mycelium
/ perossidasi
/ PEROXIDASAS
/ peroxidases
/ PEROXYDASE
/ phenolic compounds
/ phoenix dactylifera
/ PHYTOALEXINE
/ phytoalexins
/ QUITINA
/ RACINE
/ radici
/ RAICES
/ RESEARCH PAPERS
/ RESISTANCE AUX MALADIES
/ RESISTANCE INDUITE
/ RESISTENCIA A LA ENFERMEDAD
/ RESISTENCIA INDUCIDA
/ resistenza alle malattie
/ resistenza indotta
/ roots
/ sperimentazione in laboratorio
/ xilema
/ xylem
/ XYLEME
2004
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Chitosan, antifungal product against Fusarium oxysporum f. sp. albedinis and elicitor of defence reactions in date palm roots Phoenix dactylifera L.; Morocco
Journal Article
Chitosan, antifungal product against Fusarium oxysporum f. sp. albedinis and elicitor of defence reactions in date palm roots Phoenix dactylifera L.; Morocco
2004
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Overview
The effect of chitosan on the growth and morphology of Fusarium oxysporum f. sp. albedinis (Foa), the causal agent of Bayoud disease, and its ability to elicit a defence reaction against this fungus in date palm roots were investigated. Chitosan at 1 mg mlE-1 reduced the growth of Foa on potato dextrose agar medium by an average of 75%, while mycelial growth was totally inhibited in a liquid medium. When added to a solid medium, chitosan caused morphological changes in Foa mycelium. In addition, when injected into roots at three concentrations (0.1, 0.5 and 1 mg mlE-1), chitosan elicited peroxidase (PO) and polyphenoloxidase (PPO) activity and, particularly at the concentration of 1 mg mlE-1, increased the level of phenolic compounds. Concerning phenolics, chitosan led to an accumulation of non-constitutive hydroxycinnamic acid derivatives, known to be of great importance in date palm resistance to Bayoud. The accumulation of hydroxycinnamic acid derivatives was greater in cv BSTN than in cv JHL. Chitosan could be used to protect date palm against this vascular disease
[Sono stati studiati l´effetto del chitosano sulla crescita e la morfologia di Fusarium oxysporum f. sp. albedinis (Foa), agente causale della malattia del Bayoud, e la sua capacità di provocare una reazione di difesa contro questo fungo nella palma da datteri. Il chitosano a 1 mg mlE-1 ha ridotto la crescita di Foa su un substrato agar-patata-destrosio del 75% in media, mentre in substrato liquido la crescita del micelio era inibita completamente. Aggiunto a un substrato solido, il chitosano ha determinato cambiamenti morfologici nel micelio di Foa. Inoltre, quando veniva iniettato nelle radici a tre concentrazioni (0,1, 0,5 e 1 mg mlE-1), il chitosano stimolava l´attività della perossidasi (PO) e della polifenolossidasi (PPO) e, in particolare alla concentrazione di 1 mg mlE-1, determinava un aumento del livello di composti fenolici. Riguardo ai composti fenolici, il chitosano portava a un accumulo di derivati non costitutivi dell´acido idrossicinnamico, noti per la loro importanza notevole nella resistenza della palma da datteri al Bayoud. L´accumulo di derivati dell´acido idrossicinnamico è risultato maggiore nella cv BSTN rispetto alla cv JHL. Il chitosano potrebbe essere utilizzato nella difesa della palma da datteri da questa malattia vascolare.]
Publisher
Firenze University Press
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