Analysis of genotypic variation in fruit flesh total sugar content via an ecophysiological model applied to peach

Quilot, Bénédicte; Génard, Michel; Kervella, J.; Lescourret, Françoise

doi:10.1007/s00122-004-1651-7

Cited by 44 publications

(51 citation statements)

References 52 publications

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“…Kader [20] considered mean values of SSC over 10 °Brix as the minimum value for consumer acceptance for yellow-flesh nectarines, which is the case in our progeny. The variability found in SSC among seedlings can be explained by the quantitative performance of this quality trait [21]. …”

Section: Resultsmentioning

confidence: 99%

Evaluation of Antioxidant Compounds and Total Sugar Content in a Nectarine [Prunus persica (L.) Batsch] Progeny

Abidi

Jiménez

Sánchez

et al. 2011

IJMS

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Epidemiological studies suggest that consumption of fruit rich in phenolic compounds is associated with health-protective effects due to their antioxidant properties. For these reasons quality evaluation has become an important issue in fruit industry and in breeding programs. Phytochemical traits such as total phenolics, flavonoids, anthocyanins, L-ascorbic acid, sugar content and relative antioxidant capacity (RAC) were analyzed over four years in flesh fruit of an F1 population “Venus” × “Big Top” nectarines. Other traits such as harvesting date, yield, fruit weight, firmness, soluble solids concentration (SSC), pH, titratable acidity (TA) and ripening index (RI) were also determined in the progeny. Results showed high variability among genotypes for all analyzed traits. Total phenolics and flavonoids showed significant positive correlations with RAC implying that both are important antioxidant bioactive compounds in peaches. We found genotypes with enhanced antioxidant capacity and a better performance than progenitors, and in consequence the best marketability.

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Section: Resultsmentioning

confidence: 99%

Evaluation of Antioxidant Compounds and Total Sugar Content in a Nectarine [Prunus persica (L.) Batsch] Progeny

Abidi

Jiménez

Sánchez

et al. 2011

IJMS

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“…No estádio R 6 , os tratamentos TS, V 4 +R 5 e TS+V 4 +R 5 foram 39,2%, 64,3% e 46,6% superiores à testemunha, respectivamente. Os teores de açúcares totais variam com o suprimento de carboidratos, alterações no metabolismo, ou ainda por diluição causada por aumento de diferentes partes da planta (QUILOT et al, 2004).…”

Section: Tratamentounclassified

Nodulação, aspectos bioquímicos, crescimento e produtividade do feijoeiro em função da aplicação de bioestimulante

et al. 2014

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ResumoA utilização de bioestimulantes pode alterar o desenvolvimento e o crescimento vegetal, porém, a ação dos mesmos pode ser variável conforme o estádio de desenvolvimento da planta. Objetivou-se avaliar o efeito de formas e épocas de aplicação de um bioestimulante (citocinina, ácido indolbutírico e ácido giberélico) na nodulação, alguns aspectos bioquímicos, crescimento e produtividade do feijoeiro cultivar Pérola. Os tratamentos foram: Testemunha (sem aplicação); TS -250 mL ha -1 em tratamento de semente (TS); V 4 -250 mL ha -1 via pulverização foliar em V 4 ; R 5 -250 mL ha -1 via pulverização foliar em R 5 ; TS+V 4 -250 mL ha -1 em TS + 250 mL ha -1 em V 4 ; TS+R 5 -250 mL ha -1 em TS + 250 mL ha -1 em R 5 ; V 4 +R 5 -250 mL ha -1 em V 4 + 250 mL ha -1 em R 5 e TS+V 4 +R 5 -250 mL ha -1 em TS + 250 mL ha -1 em V 4 + 250 mL ha -1 em R 5 . A aplicação do bioestimulante via foliar na fase vegetativa (V 4 ) ou início da reprodutiva (R 5 ) proporciona incrementos na nodulação, no crescimento radicular, no conteúdo de açúcares solúveis e aminoácidos totais e na atividade da nitrato redutase, porém, não interfe no crescimento da parte aérea e na produtividade da cultura do feijão. Palavras-chave: Phaseolus vulgaris, regulador vegetal, nitrato redutase, crescimento radicular AbstractThe use of biostimulants can alter plant growth and development, but the action of they may be varied according to the stage of development of the plant. The aim was to evaluate the effects of forms and times of a biostimulant (cytokinin, indolebutyric acid, and gibberellic acid) application on nodulation, some biochemical aspects, growth and yield of common bean cultivar Pérola. The treatments were: Control (without application); TS -250 mL ha -1 seed treatment; V 4 -250 mL ha -1 foliar spray in V 4 stage; R 5 -250 mL ha -1 foliar spray in R 5 stage; TS+V 4 -250 mL ha -1 in TS + 250 mL ha -1 in V 4 ; TS+R 5 -250 mL ha -1 in TS + 250 mL ha -1 in R 5 ; V 4 +R 5 -250 mL ha -1 in V 4 + 250 mL ha -1 in R 5 , and TS+V 4 +R 5 -250 mL ha -1 in TS + 250 mL ha -1 in V 4 + 250 mL ha -1 in R 5 .The foliar biostimulant application in the vegetative (V 4 ) or early reproductive phase (R 5 ) increases nodulation, root growth, content of soluble sugars, content of total amino acid and nitrate reductase activity, however, does not interfere with shoot growth and grain yield of common bean.

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“…This would enable the use of ETHY to analyze comprehensively the high genetic variability in C 2 H 4 production (Miccolis and Saltveit, 1991;Klozenbucher et al, 1994;Xu et al, 1998) following the approach initiated by Quilot et al (2004) for sugar concentrations. …”

Section: Discussionmentioning

confidence: 99%

ETHY. A Theory of Fruit Climacteric Ethylene Emission

Génard

Gouble

2005

Plant Physiology

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A theory of fruit climacteric ethylene emission was developed and used as the basis of a simulation model called ETHY. According to the theory, the biosynthetic pathway of ethylene is supplied by ATP and is regulated by 1-aminocyclopropane-1-carboxylic acid (ACC) synthase and ACC oxidase. The conjugation of ACC with malonate to form MACC was taken into account as a way to decrease the availability of ACC. Because of the seasonal increase of fruit volume, the dilution of biochemical compounds used in ETHY was taken into account. Finally, the ethylene diffusion across the skin was considered. The theory took into account the effect of temperature and O 2 and CO 2 internal concentrations on ethylene. The model was applied to peach (Prunus persica) fruit over 3 years, several leaf:fruit ratios, and irrigation conditions. An adequate ethylene increase was predicted without considering any increase in respiration during the ripening period, which suggests that the respiratory climacteric may not be required for ripening. Another important result of this study is the high sensitivity of ETHY to the parameters involved in the calculation of ACC oxidase and ACC synthase activities, ATP production, and skin surface and permeability. ETHY was also highly sensitive to changes in fruit growth and temperature.The plant hormone ethylene (C 2 H 4 ) plays a major role in the ripening process of climacteric fruits. Ripening parameters such as flesh softening (Haji et al., 2003;Hiwasa et al., 2003), color change (Flores et al., 2001), and production of aromas depend strongly on C 2 H 4 production (Rupasinghe et al., 2000;Alexander and Grierson, 2002;Flores et al., 2002).C 2 H 4 production in plant tissues has been studied extensively (Arshad and Frankenberger, 2002). It proceeds via a biosynthetic pathway, which was first established in apple (Malus domestica) fruit by Adams and Yang (1977). This pathway proceeds from Met, through S-adenosylmethionine (SAM) and 1-aminocyclopropane-1-carboxylic acid (ACC) to C 2 H 4 . The pathway enables high rates of C 2 H 4 production without high intracellular concentrations of Met. This is achieved by recycling 5#-methylthioadenosine (MTA) to Met through the Yang cycle. The respiration produces the ATP needed for the Yang cycle. Thanks to this recycling process, high levels of C 2 H 4 can be produced with a constant pool of Met (Arshad and Frankenberger, 2002). It is known that C 2 H 4 production rates in ripening fruit are controlled by the tissue's capability to synthesize ACC and to convert ACC to C 2 H 4 . The two key controls are ACC synthase (ACCs) and ACC oxidase (ACCo; Tucker, 1993). The C 2 H 4 is diluted in fruit tissue and then diffused into the atmosphere. Thus, fruit volume and permeability of skin to gas are important biophysical traits of fruit to consider when analyzing C 2 H 4 emission (Ben-Yehoshua and Cameron, 1989).The aim of this work was to develop a theory of C 2 H 4 emission, based on a mathematical representation of the respiration process and C 2 H 4 pathway. This repr...

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Analysis of genotypic variation in fruit flesh total sugar content via an ecophysiological model applied to peach

Cited by 44 publications

References 52 publications

Evaluation of Antioxidant Compounds and Total Sugar Content in a Nectarine [Prunus persica (L.) Batsch] Progeny

Evaluation of Antioxidant Compounds and Total Sugar Content in a Nectarine [Prunus persica (L.) Batsch] Progeny

Nodulação, aspectos bioquímicos, crescimento e produtividade do feijoeiro em função da aplicação de bioestimulante

ETHY. A Theory of Fruit Climacteric Ethylene Emission

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