Cold induced changes on sugar contents and respiratory enzyme activities in coffee genotypes

Partelli, Fábio Luiz; Vieira, Henrique Duarte; Rodrigues, A. L.; Pais, Isabel P.; Campostrini, Eliemar; Chaves, Maria Manuela; Ramalho, José C.

doi:10.1590/s0103-84782010005000041

Cited by 14 publications

(10 citation statements)

References 20 publications

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“…The significant increases in PK activity during exposure to low temperatures was also observed by Partelli et al 36) Glycolysis might occur effectively or even be stimulated under cold conditions to regenerate ATP for cellular metabolic processes. 37) As for composition, sucrose and fructose comprised the majority of the soluble sugar observed.…”

Section: Accumulation Of Soluble Carbohydrates In Coldstressed Wheatsupporting

confidence: 69%

Detection of Sugar Accumulation and Expression Levels of Correlative Key Enzymes in Winter Wheat (Triticum aestivum) at Low Temperatures

Zeng

Cang

et al. 2011

Bioscience, Biotechnology, and Biochemistry

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Section: Accumulation Of Soluble Carbohydrates In Coldstressed Wheatsupporting

confidence: 69%

Detection of Sugar Accumulation and Expression Levels of Correlative Key Enzymes in Winter Wheat (Triticum aestivum) at Low Temperatures

Zeng

Cang

et al. 2011

Bioscience, Biotechnology, and Biochemistry

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“…That would be related to the strong negative impact on the photosynthetic metabolism and structures, including the photoprotective pigments, when exposed to low temperatures, leading to strong post effects even when temperatures rise again PARTELLI et al, 2009;2010). Statistical analysis of growth data included a two-way ANOVA (P = 0.05) to study the evolution of growth for each branch type along the year and to compare the several branch types at each date.…”

Section: Resultsmentioning

confidence: 99%

“…However, C. canephora is usually more sensitive to low temperatures, what is probably related with its evolution ecological conditions in the low lands of the African continent (RENA; MAESTRI, 1986;DAVIS et al, 2006). In many plants low positive temperatures affects several components of the photosynthetic machinery, leading to a reduction in stomatal conductance, net photosynthesis, the photochemical efficiency of photosystem II, thylakoid electron transport, the activity of carbon metabolism enzymes, as well as promoting changes in the structure and composition of photosynthetic pigment complexes, as observed in C. arabica and C. canephora plants RAMALHO et al, 2003;SILVA et al, 2004;PARTELLI et al, 2009;2010).…”

Section: Introductionmentioning

confidence: 99%

Seasonal vegetative growth of different age branches of Conilon coffee tree

Partelli

Vieira

Silva³

et al. 2010

Sem. Ci. Agr.

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The seasonal pattern of vegetative growth is an important feature for evaluation of crop status and its management. The aim of this work was to evaluate the seasonality of vegetative growth of Conilon coffee tree (Coffea canephora Pierre) and its relation with climate variables. The evaluation of vegetative growth rates of three groups of plagiotropic branches and one group of orthotropic branches was performed along one year, in Rio Janeiro state, Brazil. The vegetative growth rates of the branches varied along the period of evaluation, and it seems to be related to the minimum air temperature (in the low growth phase). Higher growth rates were observed when the average of minimum air temperatures was higher than 17ºC and the average of the maximum temperatures lower than 31.5ºC. Below 17ºC the growth rate declined. The branches' growth patterns appeared to be similar, but the plagiotropic branches of different ages presented different rates in the same period of the year, indicating that seasonal growth studies should not be based on a single branch group with the same age. Key words: Coffea canephora, air temperature, stress ResumoO padrão do crescimento sazonal do cafeeiro é um importante auxiliar na avaliação do estado fisiológico e no manejo da cultura. O objetivo do estudo foi avaliar o crescimento vegetativo em Coffea canephora Pierre cv. Conilon e relacionar com fatores climáticos, tendo por base o crescimento de ramos ortotrópicos e plagiotrópicos com diferentes idades. Marcaram-se três grupos de ramos plagiotrópicos e um de ramos ortotrópicos, cuja avaliação de taxa de crescimento foi efetuada durante um ano no Estado do Rio de Janeiro. A taxa de crescimento varia ao longo do ano, o que parece estar relacionado com a temperatura mínima do ar (na fase de baixo crescimento). Foi observada taxa mais elevada quando a média da temperatura mínima do ar foi superior a 17ºC e a média das temperaturas máximas inferior a 31,5ºC. Abaixo de 17ºC a taxa de crescimento dos ramos diminuiu. O padrão sazonal de crescimento dos ramos é semelhante, contudo, os ramos plagiotrópicos de diferentes idades apresentam taxas de crescimento diferentes no mesmo período do ano. Assim, estudos sobre o crescimento vegetativo sazonal dos ramos não deve se basear apenas num grupo de ramos com idades similares. Palavras-chave: Coffea canephora Pierre, temperatura do ar, estresse 1 Engenheiro Agrônomo, Doutor em Produção Vegetal. Professor da

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“…Many African countries, including Uganda, Burundi, Rwanda and Ethiopia have coffee as their main source of foreign exchange. In addition, the vast majority of coffee plantations worldwide belongs to smallholders, which makes the activity highly important in maintaining rural lifestyles, providing an important source of income and wealth distribution, by promoting employment and local development in the producing and processing regions (DaMatta and Ramalho, 2006;Partelli et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Quality assessment of Arabica and Robusta green and roasted coffees ? A rev

Bichobr

Lidonbr

2013

Emir. J. Food Agric

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This review is a synopsis on coffee quality assessment of green and roasted coffee beans of Coffea arabica and Coffea canephora. The particle size, medium sieve, most frequent sieve, share split, cumulative calibration, trade homogeneity, mass of 1000 beans, apparent density, strange bodies and defects, mass losses on drying, olfactory and visual parameters, chromatic parameters, soluble solids, pH and chemical characterization (chlorogenic acids, caffeine and trigonelline) is described and evaluated, considering the most important factor associated to the coffee trade, according to a technological perspective.

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Cold induced changes on sugar contents and respiratory enzyme activities in coffee genotypes

Cited by 14 publications

References 20 publications

Detection of Sugar Accumulation and Expression Levels of Correlative Key Enzymes in Winter Wheat (Triticum aestivum) at Low Temperatures

Detection of Sugar Accumulation and Expression Levels of Correlative Key Enzymes in Winter Wheat (Triticum aestivum) at Low Temperatures

Seasonal vegetative growth of different age branches of Conilon coffee tree

Quality assessment of Arabica and Robusta green and roasted coffees ? A rev

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