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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
01/10/2014 |
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Actualizado : |
09/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
RODRIGO, M.J.; ALQUEZAR, B.; ALOS, E.; LADO, J.; ZACARIAS, L. |
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Afiliación : |
JOANNA LADO LINDNER, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Biochemical bases and molecular regulation of pigmentation in the peel of Citrus fruit. |
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Fecha de publicación : |
2013 |
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Fuente / Imprenta : |
Scientia Horticulturae, 2013, v.163, no.5, p.46-62. |
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ISSN : |
0304-4238 |
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DOI : |
10.1016/j.scienta.2013.08.014 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 24 May 2013 / Received in revised form 6 August 2013 / Accepted 7 August 2013. |
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Contenido : |
ABSTRACT
External colour of Citrus fruits is one of the most important quality traits and a decisive factor for consumer acceptance. Pigmentation of fruit peel is highly diverse among the different species and cultivars of the genus Citrus, ranging from the green of limes to the yellow of lemons, orange in mandarins and sweet oranges, and pink in red grapefruits. Colouration of the peel is due to the presence of two main pigments: chlorophylls which provide green colour, and carotenoids, which are responsible for the characteristic colouration of mature fruits of most species and cultivars. Anthocyanins are a third group of pigments,
providing a red to purple tint, in a speci?c group, blood oranges, and mainly restricted to the ?esh. Chlorophylls and carotenoids are isoprenoid-derived pigments, synthesized and accumulated in plastids and, therefore, changes in these compounds during natural ripening are driven by the transformation of chloroplasts into chromoplasts. Most of the structural genes involved in chlorophylls and carotenoids metabolism have been characterized in Citrus, concluding that content and composition of these pigments are mostly genetically determined, and highly regulated at the transcriptional level. However, other mechanisms such as post-transcriptional regulation, the formation of speci?c suborganellar structures or stabilizing-complexes may also operate. Environmental factors, such as light and temperature, are known to play critical in?uence in the development of colouration and that biochemical and molecular bases of their action are being elucidated. Moreover, nutritional status (mainly nitrogen and sugars) is a key determinant of the rate and intensity of peel colouration. The consensus hypothesis establishes that peel colouration is governed by environmental and nutritional factors acting throughout the action of different hormonal signals. In this review we summarize content and composition of main pigments in the peel of fruits of relevant Citrus species and varieties. A comprehensive overview of metabolic pathways implicated in the metabolism of the main pigments, with emphasis on the key regulatory steps, gene expression and their regulation during fruit ripening and in response to environmental, nutritional and hormonal signals is critically revised and discussed.
© 2013 Elsevier B.V. All rights reserved. MenosABSTRACT
External colour of Citrus fruits is one of the most important quality traits and a decisive factor for consumer acceptance. Pigmentation of fruit peel is highly diverse among the different species and cultivars of the genus Citrus, ranging from the green of limes to the yellow of lemons, orange in mandarins and sweet oranges, and pink in red grapefruits. Colouration of the peel is due to the presence of two main pigments: chlorophylls which provide green colour, and carotenoids, which are responsible for the characteristic colouration of mature fruits of most species and cultivars. Anthocyanins are a third group of pigments,
providing a red to purple tint, in a speci?c group, blood oranges, and mainly restricted to the ?esh. Chlorophylls and carotenoids are isoprenoid-derived pigments, synthesized and accumulated in plastids and, therefore, changes in these compounds during natural ripening are driven by the transformation of chloroplasts into chromoplasts. Most of the structural genes involved in chlorophylls and carotenoids metabolism have been characterized in Citrus, concluding that content and composition of these pigments are mostly genetically determined, and highly regulated at the transcriptional level. However, other mechanisms such as post-transcriptional regulation, the formation of speci?c suborganellar structures or stabilizing-complexes may also operate. Environmental factors, such as light and temperature, are known to play critical in?uence in the ... Presentar Todo |
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Palabras claves : |
Carotenoids; Chlorophylls; Citrus fruit; Pigmentation; Plastid; Transcriptional regulation. |
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Thesagro : |
CITRUS. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 03278naa a2200289 a 4500
001 1050768
005 2019-10-09
008 2013 bl uuuu u00u1 u #d
022 $a0304-4238
024 7 $a10.1016/j.scienta.2013.08.014$2DOI
100 1 $aRODRIGO, M.J.
245 $aBiochemical bases and molecular regulation of pigmentation in the peel of Citrus fruit.$h[electronic resource]
260 $c2013
500 $aArticle history: Received 24 May 2013 / Received in revised form 6 August 2013 / Accepted 7 August 2013.
520 $aABSTRACT External colour of Citrus fruits is one of the most important quality traits and a decisive factor for consumer acceptance. Pigmentation of fruit peel is highly diverse among the different species and cultivars of the genus Citrus, ranging from the green of limes to the yellow of lemons, orange in mandarins and sweet oranges, and pink in red grapefruits. Colouration of the peel is due to the presence of two main pigments: chlorophylls which provide green colour, and carotenoids, which are responsible for the characteristic colouration of mature fruits of most species and cultivars. Anthocyanins are a third group of pigments, providing a red to purple tint, in a speci?c group, blood oranges, and mainly restricted to the ?esh. Chlorophylls and carotenoids are isoprenoid-derived pigments, synthesized and accumulated in plastids and, therefore, changes in these compounds during natural ripening are driven by the transformation of chloroplasts into chromoplasts. Most of the structural genes involved in chlorophylls and carotenoids metabolism have been characterized in Citrus, concluding that content and composition of these pigments are mostly genetically determined, and highly regulated at the transcriptional level. However, other mechanisms such as post-transcriptional regulation, the formation of speci?c suborganellar structures or stabilizing-complexes may also operate. Environmental factors, such as light and temperature, are known to play critical in?uence in the development of colouration and that biochemical and molecular bases of their action are being elucidated. Moreover, nutritional status (mainly nitrogen and sugars) is a key determinant of the rate and intensity of peel colouration. The consensus hypothesis establishes that peel colouration is governed by environmental and nutritional factors acting throughout the action of different hormonal signals. In this review we summarize content and composition of main pigments in the peel of fruits of relevant Citrus species and varieties. A comprehensive overview of metabolic pathways implicated in the metabolism of the main pigments, with emphasis on the key regulatory steps, gene expression and their regulation during fruit ripening and in response to environmental, nutritional and hormonal signals is critically revised and discussed. © 2013 Elsevier B.V. All rights reserved.
650 $aCITRUS
653 $aCarotenoids
653 $aChlorophylls
653 $aCitrus fruit
653 $aPigmentation
653 $aPlastid
653 $aTranscriptional regulation
700 1 $aALQUEZAR, B.
700 1 $aALOS, E.
700 1 $aLADO, J.
700 1 $aZACARIAS, L.
773 $tScientia Horticulturae, 2013$gv.163, no.5, p.46-62.
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INIA Las Brujas (LB) |
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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
12/04/2021 |
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Actualizado : |
18/11/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
LASSEN, P.G.; CANOZZI, M.E.A.; DA COSTA, B.B.; BARCELLOS, J.O.J.; STREIT JR,D.P. |
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Afiliación : |
PAULA GRAZIELA LASSEN, Aquam Research Group, Animal Science Research Program, Universidade Federal do Rio Grande Do Sul ? UFRGS, Porto Alegre, Brasil.; MARÍA EUGENIA ANDRIGHETTO CANOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; BRUNA BITENCOURT DA COSTA,, Aquam Research Group, Animal Science Research Program, Universidade Federal do Rio Grande Do Sul ? UFRGS, Porto Alegre, Brasil.; JÚLIO OTÁVIO JARDIM BARCELLOS, NESPRO Research Group, Animal Science Research Program, Universidade Federal do Rio Grande Do Sul, UFRGS, Porto Alegre, Brasil; DANILO PEDRO STREIT JR, Aquam Research Group, Animal Science Research Program, Universidade Federal do Rio Grande Do Sul – UFRGS, Porto Alegre, Brasil. |
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Título : |
Morphological abnormalities in cryopreserved semen from South American neotropical fish: A meta-analysis. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Aquaculture Research, Volume 52, Issue7, July 2021, Pages 3077-3086. DOI: https://doi.org/10.1111/are.15151. |
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DOI : |
10.1111/are.15151. |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 30 November 2020/Revised: 15 January 2021/Accepted: 22 January 2021/First published: 08 February 2021. |
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Contenido : |
Abstract:
A systematic review (SR) and meta-analysis (MA) were performed to summarize the scientific evidence of the effects of cryopreservation of sperm from South American freshwater fish species on sperm morphology indicators. The search strategy was applied to four electronic databases, and specialists were contacted electronically. The main inclusion criteria involved studies on neotropical fish whose male gametes were submitted for cryopreservation. MA for random effects was performed for each indicator separately with the averages of the control and treated groups. A total of five publications, which comprise five studies and 15 trials, were included in the MA involving three different species. Heterogeneity was observed among the studies for all variables. In general, the percentage of normal cells did not change significantly after cryopreservation. Primary morphological abnormalities increased significantly at a level of 1.91% (95% confidence interval [CI]: 3.727?0.097; p = 0.021) after cryopreservation when compared with fresh semen. The percentage of secondary abnormalities did not show a significant change (p-0.05) between fresh semen and cryopreserved semen. Our results suggest a new classification for sperm abnormalities in South American neotropical fish based on the increase in primary abnormalities after cryopreservation. |
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Palabras claves : |
CELL MORPHOLOGY; FRESHWATER FISH GAMETES; SPERM INDICATORS; SYSTEMATIC REVIEW. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02273naa a2200241 a 4500
001 1061977
005 2021-11-18
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1111/are.15151.$2DOI
100 1 $aLASSEN, P.G.
245 $aMorphological abnormalities in cryopreserved semen from South American neotropical fish$bA meta-analysis.$h[electronic resource]
260 $c2021
500 $aArticle history: Received: 30 November 2020/Revised: 15 January 2021/Accepted: 22 January 2021/First published: 08 February 2021.
520 $aAbstract: A systematic review (SR) and meta-analysis (MA) were performed to summarize the scientific evidence of the effects of cryopreservation of sperm from South American freshwater fish species on sperm morphology indicators. The search strategy was applied to four electronic databases, and specialists were contacted electronically. The main inclusion criteria involved studies on neotropical fish whose male gametes were submitted for cryopreservation. MA for random effects was performed for each indicator separately with the averages of the control and treated groups. A total of five publications, which comprise five studies and 15 trials, were included in the MA involving three different species. Heterogeneity was observed among the studies for all variables. In general, the percentage of normal cells did not change significantly after cryopreservation. Primary morphological abnormalities increased significantly at a level of 1.91% (95% confidence interval [CI]: 3.727?0.097; p = 0.021) after cryopreservation when compared with fresh semen. The percentage of secondary abnormalities did not show a significant change (p-0.05) between fresh semen and cryopreserved semen. Our results suggest a new classification for sperm abnormalities in South American neotropical fish based on the increase in primary abnormalities after cryopreservation.
653 $aCELL MORPHOLOGY
653 $aFRESHWATER FISH GAMETES
653 $aSPERM INDICATORS
653 $aSYSTEMATIC REVIEW
700 1 $aCANOZZI, M.E.A.
700 1 $aDA COSTA, B.B.
700 1 $aBARCELLOS, J.O.J.
700 1 $aSTREIT JR,D.P.
773 $tAquaculture Research, Volume 52, Issue7, July 2021, Pages 3077-3086. DOI: https://doi.org/10.1111/are.15151.
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