Changes of metabolic responses to direct and induced Fe deficiency of two Pisum sativum cultivars

Jelali, Nahida; M’sehli, Wissal; Dell’Orto, Marta Campo; Abdelly, Chédly; Gharsalli, Mohamed; Zocchi, Graziano

doi:10.1016/j.envexpbot.2009.12.003

Cited by 68 publications

(61 citation statements)

References 50 publications

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“…Here, we found that the accumulation of phenolic acids in the roots of N1438 ecotype was stimulated by Fe deficiency. Similar results were found in other species such as pea (Jelali et al, 2010) and red clover (Jin et al, 2007). Furthermore, an increase of flavonoids content in the root and exudates was observed under Fe-deficiency in these plants.…”

Section: Discussionsupporting

confidence: 77%

“…In addition to the activation of FCR and PEPC enzymes (Zocchi and Cocucci, 1990;Dell'Orto et al, 2000), several other biochemical mechanisms such as root exudation and/or the accumulation of organic compounds (phenolics and flavonoids) remain of major importance (Jelali et al, 2010). It has been suggested that phenolic compounds enhance the Fe availability in rhizosphere soil, through chelating and reducing insoluble Fe in the apparent free space of the roots and/or in the external solution (Dakora and Phillips, 2002).…”

Section: Discussionmentioning

confidence: 99%

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Arabidopsis thaliana Tolerates Iron Deficiency more than Thellungiella Salsuginea by Inducing Metabolic Changes at the Root Level

Msilini¹,

Ferhi²,

Chebbi³

et al. 2015

Acta Biologica Cracoviensia S. Botanica

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Several studies have used A. thaliana as a model to identify the physiological and molecular mechanisms underlying iron deficiency tolerance in plants. Here, Arabidopsis thaliana and Thellungiella salsuginea were used to investigate the differential responses to iron deficiency of these two species. Plants were cultivated in hydroponic medium containing 5 or 0 μM Fe, for 10 days. Results showed that rosette biomass was more reduced in T. salsuginea than in A. thaliana when grown on Fe-deficient medium. As a marker for iron deficiency tolerance, the induction of ferric chelate reductase (FCR) and phosphoenolpyruvate carboxylase (PEPC) activities was observed only in A. thaliana roots. In addition, we found that the accumulation of phenolic acids in roots of N1438 ecotype of A. thaliana was stimulated by Fe deficiency. Furthermore, an increase of flavonoids content in the root and exudates was observed under Fe-deficiency in this ecotype. Unlike other abiotic stresses, it appears that iron deficiency effects were more pronounced in Thellungiella than in Arabidopsis. The higher tolerance of the Arabidopsis plant to iron deficiency may be due to the metabolic changes occurring in the roots.K Ke ey y w wo or rd ds s: : Arabidopsis thaliana, enzymatic activities, iron deficiency, Thellungiella salsuginea, polyphenol production.

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Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Arabidopsis thaliana Tolerates Iron Deficiency more than Thellungiella Salsuginea by Inducing Metabolic Changes at the Root Level

Msilini¹,

Ferhi²,

Chebbi³

et al. 2015

Acta Biologica Cracoviensia S. Botanica

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“…The different aptitude to induce the antioxidant mechanisms exhibited by both P.sativum cultivars can be ascribed to their different ability to take up Fe: in fact the antioxidant response is particularly expressed in Kelvedon when grown in the presence of bicarbonate, in which Fe is supplied, although scarcely available (ID), while in the absence of Fe (DD) the two cultivar exhibit a more similar behaviour. On the other hand, the better aptitude to grow under Fe-limiting conditions exhibited by Kelvedon plants can be partly ascribed to its effective antioxidant response itself, which limits the damages derived from Fe starvation; from this point of view the antioxidant response could be considered as an integral part of the complex adaptive response conferring to Kelvedon its high tolerance to lime-induced Fe deficiency, assessed both in the field [1] and in hydroponics [25,41].…”

Section: Resultsmentioning

confidence: 99%

“…Kelvedon and cv. Lincoln) were selected at the Tunisian National Institute of Agronomic Research: INRAT on the basis of their different tolerance to Fe deficiency, which was assessed in previous work investigating physiological and metabolic parameters [1,25]. Seeds were germinated for 6 days at 19°C in Petri dishes with filter paper constantly moistened with 0.1 mm CaSO 4 .…”

Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

Implication of Antioxidant Defence in Tolerance to Fe Deficiency of Pisum Sativum Leaves

Jelali¹

2017

JABB

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The intend of this work was to investigate whether some leaf parameters involved in the antioxidant mechanisms were differently expressed in two pea (Pisum sativum L.) cultivars characterized by different tolerance to Fe deficiency: cv. Kelvedon, tolerant and cv. Lincoln, susceptible. Both cultivars were grown in a full strength nutrient solution (C), in the absence of Fe (direct deficiency, DD) or in the presence of Fe and bicarbonate (induced deficiency, ID) for 12 days. Our results show that peroxidase activity and isoform expression increased in Kelvedon in both treatments, while it decreased in Lincoln plants grown in the presence of bicarbonate, suggesting the involvement of this activity improvement in Fe deficiency tolerance of pea plants. Interestingly, while only slight differences were reported between both cultivars under DD, the adaptation of Kelvedon under ID seems to be related, at least in part, to its greater ability to enhance the antioxidant defense at leaf level.

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“…La respuesta del metabolismo de los ácidos orgánicos (ciclo de Krebs) inducida por la clorosis férrica, ha sido objeto de estudio en diversas especies, registrándose un aumento de las concentraciones de éstos (principalmente citrato y malato) en diferentes partes de la planta como raíces, hojas y xilema (Jones, 1998;Schmidt, 1999;Marschner y Römheld, 1995;Fournier et al, 1992;Rabotti et al, 1995;López-Millán et al, 2000Rombolá et al, 2002;Jelali et al, 2010b).…”

Section: Biosíntesis De áCidos Orgánicosunclassified

Respuestas Del Sistema De Absorción De Hierro en Las Raíces De Los Cítricos Ante Diferentes Condiciones Clorosantes Del Medio

Cuenca¹,

Rus²

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INFORMAN que,Dª Mary-Rus Martínez Cuenca, Ingeniera Agrónoma, ha realizado bajo nuestra dirección el trabajo que, con el título "Respuestas del sistema de absorción de hierro en las raíces de los cítricos ante diferentes condiciones clorosantes del medio", presenta para optar al grado de Doctora Ingeniera Agrónoma.Para que así conste a los efectos oportunos, firman el presente documento en Moncada a 28 de septiembre de 2012. Fdo. D. Francisco Legaz ParedesFdo. D. Eduardo Primo Millo RESUMENLa clorosis férrica es uno de los estreses abióticos más importantes para las plantas, y como tal, resulta un problema agrícola muy extendido especialmente para aquellos cultivos que se desarrollan en terrenos calizos, como es el caso de los cítricos en la Comunidad Valenciana.El objetivo de este trabajo fue caracterizar el sistema de absorción de hierro en los cítricos y su respuesta ante distintas situaciones clorosantes que comprometen la disponibilidad del elemento, provocando la deficiencia deFe en la planta. Los componentes del sistema de absorción del Feacidificación del medio, reducción del Fe(III), transporte a través de la membrana y alteración de la síntesis de ácidos orgánicos-, se analizaron a nivel fisiológico, bioquímico y molecular, en condiciones de ausencia de Fe externo, presencia de bicarbonato (HCO 3 -) y de otros micronutrientes como zinc (Zn) y manganeso (Mn). A més a més, s'aprecia que totes les respostes a la deficiència de Fe dels arrels estan metabòlicament relacionades les unes amb les altres i collaboren en l'absorció d'este element per la planta mitjançant la solubilització del Fe amb l'acidificació de la rizosfera, la reducció del ió Fe 3+ a Fe 2+ (més absorbible per la planta), i l'activació dels transportadors de ferro de la membrana plàsmica del a rrel. El nivell de tolerància dels cítrics a la clorosi fèrrica està determinat pel grau de resposta dels components del sistema d'absorció de Fe davant d'una situació clorosant, on el paper de l'enzim FC-R és especialment important. ABSTRACTIron chlorosis is one of the main abiotic stress factors in plants, and as such, is a widespread agricultural problem especially affecting those crops grown on calcareous soils, as in the case of citrus in the Valencia region.The aim of this study was to characterize the iron uptake system in

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Changes of metabolic responses to direct and induced Fe deficiency of two Pisum sativum cultivars

Cited by 68 publications

References 50 publications

Arabidopsis thaliana Tolerates Iron Deficiency more than Thellungiella Salsuginea by Inducing Metabolic Changes at the Root Level

Arabidopsis thaliana Tolerates Iron Deficiency more than Thellungiella Salsuginea by Inducing Metabolic Changes at the Root Level

Implication of Antioxidant Defence in Tolerance to Fe Deficiency of Pisum Sativum Leaves

Respuestas Del Sistema De Absorción De Hierro en Las Raíces De Los Cítricos Ante Diferentes Condiciones Clorosantes Del Medio

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