2009
DOI: 10.1016/j.jplph.2009.01.007
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Differential responses in pear and quince genotypes induced by Fe deficiency and bicarbonate

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Cited by 73 publications
(48 citation statements)
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“…It is associated not only with a loss of chlorophyll content, since several steps of its biosynthesis are Fe-depend, but also with changes in the expression and assembly of other components of the photosynthetic apparatus [26]. In our case, both lines of Medicago ciliaris exhibited the classic visual chlorosis symptoms, with a more severe impact in TN8.7 line compared to TN11.11.…”
Section: Discussionmentioning
confidence: 51%
“…It is associated not only with a loss of chlorophyll content, since several steps of its biosynthesis are Fe-depend, but also with changes in the expression and assembly of other components of the photosynthetic apparatus [26]. In our case, both lines of Medicago ciliaris exhibited the classic visual chlorosis symptoms, with a more severe impact in TN8.7 line compared to TN11.11.…”
Section: Discussionmentioning
confidence: 51%
“…Also, carotenoids such as β-carotene and neoxanthin suffer reductions in availability. However, lutein and three xanthophylls (violaxanthin, zeaxanthin and anteraxantina) that are part of the xanthophyll cycle are less affected (Donnini et al 2003(Donnini et al , 2009. A decrease in photosynthetic activity induced by Fe deficiency is associated with decreased light harvesting complexes (LHCs) and electron transport (Pérez et al 1995;Donnini et al 2009).…”
Section: Iron and Physiological Processmentioning
confidence: 99%
“…En estudios anteriores, se observó que dentro de una misma especie, existen genotipos sensibles y tolerantes a la clorosis férrica, y que difieren en su capacidad para acidificar la rizosfera (Rabotti y Zocchi, 2006;Rabotti et al, 1995;Tagliavini et al, 1995;Wey et al, 1997;Vizzotto et al, 1999;Dell'Orto et al, 2000b;Ksouri et al, 2006;Donnini et al, 2009;Jelali et al, 2010a). En un estudio sobre cítricos, Treeby y Uren (1993) observaron que las especies más tolerantes a la clorosis disminuían el pH de la solución nutritiva en respuesta a la deficiencia de Fe, mientras que los menos tolerantes no tenían esta capacidad tan desarrollada.…”
Section: Discussionunclassified
“…Por todo ello, la estimulación de la actividad de los enzimas H + -ATPasa y FC-R en las raíces de las plantas con deficiencia de hierro, ha sido considerada por algunos autores como una acción sinérgica de ambos enzimas para mejorar la capacidad de adquisición de Fe, a través de la acidificación del apoplasto radicular y de la reducción de Fe 3+ (Rabotti y Zocchi, 1994;Rabotti y Zocchi, 2006;Vizzotto et al, 1999;Dell'Orto et al, 2000b;Donnini et al, 2009;M'sehli et al, 2009;Jelali et al, 2010a), como parece ocurrir en portainjertos de cítricos.…”
Section: Discussionunclassified
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