Effect of iron chlorosis on mineral nutrition and lipid composition of thylakoid biomembrane in Prunus persica (L.) Bastch

Monge, E.; Perez, C.A.; Pequerul, A.; Madero, P.; Val, J.

doi:10.1007/978-94-017-2496-8_75

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…The whole study of these results, together with others published in previous papers (Monge et al, 1987 and1993), show that the lack of iron in plants affects all components of the thylakoid membranes (proteins, photosynthetic pigments, acyl lipids), but in different proportions. The photosynthetic pigments are the components most affected, chlorophyll being the most sensitive, after the xantophyll group, and although the proteins and acyl lipids are also affected, they are less affected by iron chlorosis.…”

Section: Discussionsupporting

confidence: 54%

Proteins, Photosynthetic Pigments and Polar Lipids Changes of Thylakoid Biomembrane From Prunus Affected by Iron Chlorosis

Pacheco¹,

García²,

Falcón³

1997

Acta Hortic.

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The effect of iron chlorosis on proteins, photosynthetic pigments and acyl lipid composition of adult field grown peach tree leaves has been studied. No differences in the samples have been found between the iron extracted by ,´-dipyridyl (active iron) and total iron analysed by atomic absorption spectrometry, both analyses are good determinations to detect iron chlorosis. The levels of proteins, photosynthetic pigments and acyl lipids were reduced under iron chlorosis, although the concentrations of proteins and polar lipids per chlorophyll unit were higher in the chlorotic peach tree than in the control.

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Section: Discussionsupporting

confidence: 54%

Proteins, Photosynthetic Pigments and Polar Lipids Changes of Thylakoid Biomembrane From Prunus Affected by Iron Chlorosis

Pacheco¹,

García²,

Falcón³

1997

Acta Hortic.

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“…These results are in agreetnent with numerous reports that indicate that iron deficiency leads to a concomitant reduction of chlorophylls, carotenoids (Val et al 1987;Morales, Abadia & Abadia 1990;Morales et al 1994) and plastidial proteins (Spence, Henzl & Lammers 1991), and also disturbs the lipid composition of thylakoid membranes (Nishio, Taylor & Terry 1985;Abadia etal. 1989;Monge et al 1993). All these perturbations may occur either because iron is directly involved in the biosynthesis of all of these various plastidial components, or becau.se reduced levels of one component result in a stoichiometric decrease in all the others.…”

Section: Kinetic and Spatial Analysis Of Iron Deficiency Symptoms In mentioning

confidence: 99%

Impact of iron deficiency and iron re‐supply during the early stages of vegetative development in maize (Zea mays L.)

Thoiron

Pascal

Briat

1997

Plant Cell & Environment

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The consequences of iron deficiency and iron re-supply were evaluated during the early stages of growth and development of young maize plantlets grown hydroponically in the ahsence of iron. Various parameters, such as fresh and dry weights, and the concentration of chlorophylls, iron, copper, manganese, calcium, magnesium and potassium in leaves, were measured at various times during the first 15 d of culture. Ten-day-old maize plantlets grown without iron displayed severe alterations, with a 50% decrease in iron and chlorophyll concentrations in leaves, and serious impairments in mitochondria and chloroplast ultrastructure. In contrast, neither leaf nor root growth, nor other mineral concentrations other than iron were significantly affected at this stage of development. In an attempt to characterize proteins potentially involved in iron nutrition or the adaptative response to iron starvation, comparative 2D-gel electrophoretic analysis of polypeptides was carried out on soluble and memhrane fractions prepared from leaves and roots of iron-deficient and iron-sufficient 10-d-old maize plantlets. Two polypeptides (11 and 17 kDa, pi of about 6-8) from the micro.sonial iraction of leaves were found to be repressed under iron-deticient conditions. Some other polypeptides were found to be induced in microsomal fractions either from roots or leaves. Significant variations in the concentration of most of these polypeptides were observed from one experiment to another. It can be concluded from this study that, at this early stage of maize vegetative growth and development, molecular variations induced by iron deficiency do not affect major house-keeping proteins, but probably affect very specific events depending on low abundance proteins.

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“…The biogenesis of thylakoids is apparently a complex process that involves the synthesis and maintenance of pigments, proteins, and lipids (Herrmann, 1999;Vothknecht and Westhoff, 2001). It is also affected by environment (e.g., light, temperature, and nutrients) and by organ development (Tzinas et al, 1987;Monge et al, 1993;Kota et al, 2002). Despite such complexity, several important factors involved in thylakoid formation have been proposed, including VESICLE-INDUCING PROTEIN IN PLASTIDS1 (VIPP1), THYLAKOID FORMATION1 (THF1), CHLOROPLAST SECRETION-ASSOCIATED RAS1 (CPSAR1), and FtsH (Kroll et al, 2001;Sakamoto et al, 2003;Wang et al, 2004;Garcia et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Essential Role of VIPP1 in Chloroplast Envelope Maintenance in Arabidopsis

et al. 2012

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VESICLE-INDUCING PROTEIN IN PLASTIDS1 (VIPP1), proposed to play a role in thylakoid biogenesis, is conserved in photosynthetic organisms and is closely related to Phage Shock Protein A (PspA), which is involved in plasma membrane integrity in Escherichia coli. This study showed that chloroplasts/plastids in Arabidopsis thaliana vipp1 knockdown and knockout mutants exhibit a unique morphology, forming balloon-like structures. This altered morphology, as well as lethality of vipp1, was complemented by expression of VIPP1 fused to green fluorescent protein (VIPP1-GFP). Several lines of evidence show that the balloon chloroplasts result from chloroplast swelling related to osmotic stress, implicating VIPP1 in the maintenance of plastid envelopes. In support of this, Arabidopsis VIPP1 rescued defective proton leakage in an E. coli pspA mutant. Microscopy observation of VIPP1-GFP in transgenic Arabidopsis revealed that VIPP1 forms large macrostructures that are integrated into various morphologies along the envelopes. Furthermore, live imaging revealed that VIPP1-GFP is highly mobile when chloroplasts are subjected to osmotic stress. VIPP1-GFP showed dynamic movement in the transparent area of spherical chloroplasts, as the fluorescent molecules formed filament-like structures likely derived from disassembly of the large VIPP1 complex. Collectively, our data demonstrate that VIPP1 is a multifunctional protein in chloroplasts that is critically important for envelope maintenance.

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Effect of iron chlorosis on mineral nutrition and lipid composition of thylakoid biomembrane in Prunus persica (L.) Bastch

Cited by 7 publications

References 10 publications

Proteins, Photosynthetic Pigments and Polar Lipids Changes of Thylakoid Biomembrane From Prunus Affected by Iron Chlorosis

Proteins, Photosynthetic Pigments and Polar Lipids Changes of Thylakoid Biomembrane From Prunus Affected by Iron Chlorosis

Impact of iron deficiency and iron re‐supply during the early stages of vegetative development in maize (Zea mays L.)

Essential Role of VIPP1 in Chloroplast Envelope Maintenance in Arabidopsis

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