Optimum Ratio of Calcium and Boron in the Nutrient Solution or in Castor Bean Shoot for Fruit Yield and Seed Oil Content

Franco, Henrique Coutinho Junqueira; Lavres, José; Oliveira, Adílson de; Matias, Gean Carlos Silva; Cabral, Cristiane da Silva; Malavolta, E.

doi:10.1080/01904167.2012.639921

Cited by 3 publications

(3 citation statements)

References 26 publications

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“…The yield and the quality of palm oil were highly influenced by genes expressed during the final weeks of ripening (Shaarani et al 2010). From the point view of metal ion-binding, the yield and quality of fruit oil are affected by deficiency or excess of macro-and micro-elements (Franco et al 2012). Therefore, it can be assumed that the high homology of the type 2 MT proteins between the two crops, oil palm and maize, may indicate that the MTs have a biosynthesis function as metal chelators, thereby enhancing the oil production process.…”

Section: Discussionmentioning

confidence: 99%

Isolation and expression analysis of transcripts encoding metallothioneins in oil palm

Al-Shanfari¹,

Abdullah²

2014

Biologia plant.

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Two of the abundant transcripts encoding type 2 metallothionein (MT) proteins designated as MET2a and MET2b were selected in our previous study due to their high abundance (16.05 %) in the suppression subtractive hybridization library and their involvement in fruit development and maturation. The present study involves the isolation of the full-length cDNA encoding MET2a and MET2b from the ripening oil palm fruit mesocarp, examining their expression pattern compared to the other two previously reported type-3 MT members (MT3-A and MT3-B) in various oil palm organs including different vegetative and reproductive tissues. The full-length cDNA sequences of MET2a and MET2b were 571 and 553 bp and they were designated as EgMT2a and EgMT2b, respectively. The sequences of the EgMT2a and EgMT2b were then compared for sequence similarities in the database using both BLASTN and BLASTX programs. Their sequences were homologous (67 -77 %) with several type-2 MTs in plants. All four MT encoding genes were differentially expressed in the ripening oil palm mesocarp tissues, but undetectable in the vegetative tissues examined. All MT genes examined were significantly up-regulated in the mature developmental stages of oil palm fruit mesocarp, except for EgMT2b which was expressed only at 17 weeks after anthesis. The type 2 MT proteins are related to a greater degree to the late fruit-ripening stage than the type 3 MT proteins consistent with their reported functions in homeostasis or detoxification. The findings in the present study contribute to better understanding the molecular mechanisms involved in fruit ripening in oil palm.

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Section: Discussionmentioning

confidence: 99%

Isolation and expression analysis of transcripts encoding metallothioneins in oil palm

Al-Shanfari¹,

Abdullah²

2014

Biologia plant.

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“…Já em relação ao cobre, a sua eficiência de absorção foi reduzida, após a dose de 1,9 mg dm -3 de B aplicadas ao substrato (Figura 7D). Para Fageria (2002) (Franco et al, 2012). Moraes et al (2002), ao observaram a relação entre a flexibilidade do caule de seringueira (Hevea spp) e a carência de boro, verificaram que a síntese de pectato de cálcio nestas plantas é bloqueada pela carência de boro.…”

Section: Doses De B Mg Dm -unclassified

Influência do boro no teor, acúmulo e eficiência nutricional em porta-enxertos de caramboleira

Xavier

Natale

2017

Agraria

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RESUMOA capacidade de absorver, transportar e utilizar os nutrientes é diferente entre as plantas. Há poucos trabalhos na literatura a respeito da influência do boro (B) na eficiência nutricional de porta-enxertos de caramboleira. Diante da falta de informações, o trabalho teve por objetivo avaliar a influência do B sobre o teor, o acúmulo, a eficiência de absorção, de transporte e de uso de nutrientes em porta-enxertos de caramboleira. O delineamento utilizado foi em blocos casualizados, com cinco doses de B: zero; 1; 2; 3; e 4 mg dm -3 de B e quatro repetições. Aos 170 dias após a aplicação do B, as plantas foram coletadas, separadas em parte aérea e raízes, secas, pesadas, moídas e determinados os teores, calculados os acúmulos, a eficiência de absorção, de transporte e de utilização de macro e micronutrientes. Os teores de cálcio (Ca) e B nas raízes dos porta-enxertos diminuíram com o incremento de doses de B. Os resultados permitiram concluir que as doses mais elevadas de boro aumentaram a eficiência de transporte e utilização de Ca. Palavras-chave: absorção de nutrientes; Averrhoa carambola L.; macronutrientes Influence of boron on the content, accumulation and nutritional efficiency in rootstock of star fruitABSTRACT The ability to absorb, transport and use nutrients is different between plants. There are few studies in the literature about the influence of boron (B) on the nutritional efficiency in rootstocks of the star fruit. In view of the lack of information, the objective of this study was to evaluate the influence of B on the content, accumulation, efficiency of absorption, transport and nutrient use in rootstocks of the star fruit. The design was randomized blocks, with five doses of B: zero; 1; 2; 3; 4 mg dm -3 of B and four replicates. At 170 days after application of B, the plants were harvested, separated in aerial part and roots, dried, weighed, ground and determined the contents, calculated the accumulations, the efficiency of absorption, transportation and use of macro and micronutrients. The calcium (Ca) and B contents in the roots of the rootstocks decreased with increasing doses of B. The results showed that higher doses of boron increased the transport efficiency and Ca utilization.

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“…Os resultados foram submetidos às análises estatísticas utilizando-se o programa estatístico SAS -System for Windows 6.11 (SAS INSTITUTE, 1996) -HAMDAOUI et al, 2003;ZEHIROV;GEORGIEV, 2003;FRANCO et al, 2012;SHAMS et al, 2012…”

Section: Análises Estatísticasunclassified

Avaliação do estado nutricional, taxa fotossintética e produção de biomassa do sorgo sacarino submetido a combinações de doses de nitrogênio e potássio

Campos¹

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Avaliação do estado nutricional, taxa fotossintética e produção de biomassa do sorgo sacarino submetido a combinações de doses de nitrogênio e potássio Piracicaba 2015 1 ALINE GRELLA DE CAMPOS Avaliação do estado nutricional, taxa fotossintética e produção de biomassa do sorgo sacarino submetido a combinações de doses de nitrogênio e potássio Versão revisada de acordo com a Resolução CoPGr

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Optimum Ratio of Calcium and Boron in the Nutrient Solution or in Castor Bean Shoot for Fruit Yield and Seed Oil Content

Cited by 3 publications

References 26 publications

Isolation and expression analysis of transcripts encoding metallothioneins in oil palm

Isolation and expression analysis of transcripts encoding metallothioneins in oil palm

Influência do boro no teor, acúmulo e eficiência nutricional em porta-enxertos de caramboleira

Avaliação do estado nutricional, taxa fotossintética e produção de biomassa do sorgo sacarino submetido a combinações de doses de nitrogênio e potássio

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