Intensity and duration of water deficit on the pathosystem sugarcane x Meloidogyne incognita

Quintela, Matheus Pires; Pedrosa, Elvira M. R.; Willadino, Lília; Rolim, Mário M.; Silva, Ênio Farias de França e; David, Mariana F. de L.

doi:10.1590/1807-1929/agriambi.v19n6p581-586

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…The longer stress time, obviously made for a slower plant recovery, and thus a slower development. As the duration of water deficit increased, it affected the post-stress recovery more negatively, again concurring with the results of the current study (Quintela et al, 2015). In their assessment, Machado et al, (2009) evaluated the biometric responses to water deficit in sugarcane during the different phenological phases, and compared the clones.…”

Section: Biometric Responses Of Sugarcanesupporting

confidence: 88%

Drought tolerance of the sugar cane varieties during the initial development

Silverio¹,

Silva²,

Bonfim-Silva³

et al. 2017

Aust J Crop Sci

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This study was conducted to identify the water-deficit tolerant sugarcane varieties (Saccharum officinarum L.) by cultivating them under mild-to-severe water deficit conditions. The experiments were performed in a greenhouse, employing the randomized block design in a 7 x 5 factorial scheme corresponding to seven sugarcane varieties (RB867515, RB92579, RB855536, RB72454, RB073036, RB073028, and RB073040) and five types of soil water stress (12, 24, 36, 48, and 60 kPa). Water stress was maintained throughout the experiment period. The experimental units included 10 dm 3 pots, with three replications, accounting for 105 pots in total. Height, diameter, and stalk dry mass were the variables analyzed and evaluations were done 90 days post transplantation. Finally, the RB073028, RB867515, and RB72454 varieties were identified as being tolerant to severe water stress. The varieties of RB073036 and RB073040 could tolerate moderate water deficit and the RB92579 and RB855536 varieties showed water deficit sensitivity.

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Section: Biometric Responses Of Sugarcanesupporting

confidence: 88%

Drought tolerance of the sugar cane varieties during the initial development

Silverio¹,

Silva²,

Bonfim-Silva³

et al. 2017

Aust J Crop Sci

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“…Silva (2010), analyzing six sugarcane genotypes subjected to severe water stress, observed a response of up to 30.23% in APX activity. Quintela et al (2015), evaluating water stress intensity and duration on the pathosystem sugarcane x Meloidogyne incognita, observed an increase in APX activity without affecting CAT activity in the tested water treatments. In maize and soybean crops, the enzymes CAT and APX acted in a similar way under extreme situations, increasing as a result of the severity of the applied stress (Vasconcelos et al, 2009).…”

Section: Bmentioning

confidence: 88%

Enzymatic activity of three sugarcane varieties under salt stress

Carvalho

Corrêa

Carvalho

et al. 2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TSugarcane is a species of great economic importance to Brazil. The study of enzymatic activity has helped to identify varieties of sugarcane tolerant to salt stress, for planting in Brazilian semiarid regions, where there is the occurrence of saline soils. The objective of this study was to evaluate the enzymatic activity of three varieties of sugarcane subjected to stress caused by salinity. The experiment was conducted in a greenhouse at the Federal Rural University of Pernambuco, in a completely randomized design with four replicates. The leaf blade samples were collected for analysis of soluble proteins and determination of the activity of catalase and ascorbate peroxidase. The protein content was higher for RB962962 and lower for the varieties RB92579 and RB867515. However, in RB867515, there was an increase in the activity of ascorbate peroxidase and catalase, while the varieties RB92579 and RB962962 showed a reduction in the activity of these enzymes. These results indicate that the variety RB867515 has a more efficient mechanism in plant protection against the action of reactive oxygen species.Atividade enzimática de três variedades de cana-de-açúcar sob estresse salino R E S U M O A cana-de-açúcar é uma espécie de grande importância econômica para o Brasil. O estudo da atividade enzimática tem ajudado a identificar variedades de cana-de-açúcar tolerantes ao estresse salino para plantio nas regiões semiáridas brasileiras nas quais ocorre incidência de solos salinizados. Objetivou-se, neste estudo, avaliar a atividade enzimática de três variedades de cana-de-açúcar submetidas ao estresse causado pela salinidade. O experimento foi conduzido em casa de vegetação na Universidade Federal Rural de Pernambuco. Foi feito um delineamento inteiramente casualizado, com quatro repetições. Foram coletadas amostras do limbo foliar para análise das proteínas solúveis e determinação da atividade das enzimas catálase e ascorbato peroxidase. O teor de proteínas foi maior para a variedade RB962962 and menor para as variedades RB92579 e RB867515; entretanto se percebeu, na variedade RB867515, aumento da atividade da ascorbato peroxidase e da catálase enquanto que nas variedades RB92579 e RB962962 ocorreu uma redução da atividade dessas enzimas cujos resultados indicam que a variedade RB867515 apresenta um mecanismo mais eficiente na proteção da planta contra a ação de espécies reativas de oxigênio.

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“…Sugarcane variety RB92579 is currently the most widely grown in northeastern Brazil. It has stood out with a productivity up to 30% higher (Centro de Previsão de Tempo e Estudos Climáticos, 2008), but in most places, RB92579 presents dark juice due to the high content of phenols, greater than 1000 mg L -1 (Quintela et al, 2015;Azevedo et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Enzymatic polyphenoloxidase inactivation with temperature and ozone in sugarcane variety RB 92579 to produce lower color sugar

Azevedo

Silva

Medeiros

et al. 2019

Braz. J. Food Technol.

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Some sugarcane varieties have high activity of polyphenoloxidase enzyme, impairing the production of lower color sugar. Polyphenoloxidase (PPO) is an enzyme from the oxidoreductases group and it is present in a greater or lesser amount depending on the sugarcane variety, climatic conditions, age, culture treatment, harvest and processing conditions. The presence of this enzyme has great impact in the food industry, as it is the main enzyme involved in the undesirable darkening of fruits and vegetables during processing and storage. It is of great importance for the food industry to study inactivation methods for this enzyme. The aim of this work was to evaluate the effect of ozone gas associated (replacement of the conventional sulphitation process), whose concentrations were 150, 300 and 450 mg/L, at the inactivation temperature of polyphenoloxidase enzyme of sugarcane variety RB 92579 for the production of lower color sugar. Treatment with ozone concentration of 150 mg·L-1 at 105 °C showed direct correlation between juice color reduction and enzyme inactivation, resulting in the production of lower color sugar.

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Intensity and duration of water deficit on the pathosystem sugarcane x Meloidogyne incognita

Cited by 5 publications

References 15 publications

Drought tolerance of the sugar cane varieties during the initial development

Drought tolerance of the sugar cane varieties during the initial development

Enzymatic activity of three sugarcane varieties under salt stress

Enzymatic polyphenoloxidase inactivation with temperature and ozone in sugarcane variety RB 92579 to produce lower color sugar

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