scholarly journals Comprehensive Characterization of Fruit Volatiles and Nutritional Quality of Three Cucumber (Cucumis sativus L.) Genotypes from Different Geographic Groups after Bagging Treatment

Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 294 ◽  
Author(s):  
Nan Shan ◽  
Zengyu Gan ◽  
Jing Nie ◽  
Huan Liu ◽  
Zhenyu Wang ◽  
...  

Bagging is widely practiced to produce high quality and unblemished fruit; however, little is currently known about the effect of bagging on flavor and nutritional quality of cucumber fruits. Here we determined the influence of bagging on fruit quality of cucumber (Cucumis sativus L.) using three genotypes from different geographic groups. Exocarp chlorophyll and carotenoid levels were significantly decreased by bagging, accompanied by color change. Ascorbate content in bagged fruits decreased to some extent, while contents of soluble sugars, starch, and cellulose were comparable with those of control fruits. Compositions related to fruit flavor quality could be enhanced largely through bagging treatment, with elevation of the relative proportion of C6 aldehyde, as well as (E,Z)-2,6-nonadienal/(E)-2-nonenal ratio, and linoleic/α-linolenic acid ratio. Lipoxygenase and hydroperoxide lyase, two key enzymes in the production of volatiles, displayed distinctive transcript expression patterns and trends in changes of enzymatic activity in the bagged fruits of different genotypes. Overall, this study assesses the information on changing characteristics of fruit volatile composition and nutritional quality among different cucumber genotypes after bagging treatment. Results of this study would contribute to providing reference for mechanism study and cultivation conditions to improve cucumber fruit flavor to a considerable degree.

2019 ◽  
Vol 20 (14) ◽  
pp. 3592 ◽  
Author(s):  
Li Miao ◽  
Qinghua Di ◽  
Tianshu Sun ◽  
Yansu Li ◽  
Ying Duan ◽  
...  

Rootstocks frequently exert detrimental effects on the fruit quality of grafted cucumber (Cucumis sativus L.) plants. To understand and ultimately correct this deficiency, a transcriptomic and metabolomic comparative analysis was performed among cucumber fruits from non-grafted plants (NG), and fruits from plants grafted onto different rootstocks of No.96 and No.45 (Cucurbita moschata. Duch), known to confer a different aroma and taste. We found remarkable changes in the primary metabolites of sugars, organic acids, amino acids, and alcohols in the fruit of the grafted cucumber plants with different rootstocks, compared to the non-grafted ones, especially No.45. We identified 140, 131, and 244 differentially expressed genes (DEGs) in the comparisons of GNo.96 vs. NG, GNo.45 vs. NG, and GNo.45 vs. GNo.96. The identified DEGs have functions involved in many metabolic processes, such as starch and sucrose metabolism; the biosynthesis of diterpenoid, carotenoid, and zeatin compounds; and plant hormone signal transduction. Members of the HSF, AP2/ERF-ERF, HB-HD-ZIP, and MYB transcription factor families were triggered in the grafted cucumbers, especially in the cucumber grafted on No.96. Based on a correlation analysis of the relationships between the metabolites and genes, we screened 10 candidate genes likely to be involved in sugar metabolism (Fructose-6-phosphate and trehalose), linoleic acid, and amino-acid (isoleucine, proline, and valine) biosynthesis in grafted cucumbers, and then confirmed the gene expression patterns of these genes by qRT-PCR. The levels of TPS15 (Csa3G040850) were remarkably increased in cucumber fruit with No.96 rootstock compared with No.45, suggesting changes in the volatile chemical production. Together, the results of this study improve our understanding of flavor changes in grafted cucumbers, and identify the candidate genes involved in this process.


Agronomy ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 288 ◽  
Author(s):  
Rana Shahzad Noor ◽  
Zhi Wang ◽  
Muhammad Umair ◽  
Muhammad Yaseen ◽  
Muhammad Ameen ◽  
...  

The density of herbaceous crops creates a suitable environment to produce pathogens in the soil that intensify the attack of pathogens traditionally controlled by disinfectant, which are mostly prohibited and unlisted because of their toxicity. Grafting is an alternative technique to enhance abiotic stress tolerance and reduce root diseases due to soil-borne pathogens, thus enhancing crop production. This research study was conducted during the crop season of 2017 and 2018 in order to investigate the interactive effect of different grafting techniques of hybrid scion onto local rootstocks on plants survival, plant phenological growth, fruit yield and fruit quality under a controlled environment. The hybrid cucumber was also planted self-rooted. The cucumber (Cucumis sativus L.) cv. Kalaam F1, Syngenta was grafted onto four local cucurbitaceous rootstocks; ridge gourd (Luffa operculate Cogn.), bitter gourd (Momordica charantia L.), pumpkin (Cucurbita pepo L.), bottle gourd (Lagenaria siceraria (Molina) Standl.) using splice grafting, tongue approach, single cotyledon and hole insertion grafting techniques and self-rooted hybrid cucumber under greenhouse conditions. The experimental results indicated that all local cucurbitaceous rootstocks showed a high compatibility with hybrid cucumber scion in the splice grafting method compared to other grafting and non-grafted methods. Lagenaria siceraria rootstocks were found highly compatible with cucumber cv Kalaam scion which gave significantly maximum plant survival rates (95%) due to high sap contents, high SPAD value, better vegetative growth and maximum fruit yield when compared with other rootstocks by employing the splice grafting method followed by tongue approach, single cotyledon and hole insertion grafting while the fruit quality of all rootstocks was observed to be similar. The non-grafted cucumber cv. Kalaam F1 showed significant results of plant vegetative growth, fruit development and fruit quality and encountered grafting methods while the lowest result were associated with the hole insertion grafting method in all scion/rootstock combinations. The grafted plants have no significant effect on cucumber fruit dry matter and fruit quality while the fruit mineral compositions (N, P, K, Ca and Mg) were higher among grafted and non-grafted plant fruits. The results indicate that grafting hybrid cucumber onto four local cucurbitaceous rootstocks influenced growth, yield and fruit quality. Grafting can be alternative and control measure for soil-borne disease and to enhance cucumber production.


2019 ◽  
Author(s):  
Lijie Han ◽  
Xiaofei Song ◽  
Zhongyi Wang ◽  
Xiaofeng Liu ◽  
Liying Yan ◽  
...  

Abstract Background: OVATE family proteins (OFPs) are plant-specific proteins with the conserved OVATE domain that regulating plant growth and development. Although these OFPs have been studied in several species, the biological functions of this OFP gene family remain largely unknown in cucumber (Cucumis sativus L.). Results: In this study, we identified 19 CsOFPs in cucumber. This CsOFPs are distributed on seven chromosomes and can be divided into four subgroups. Most CsOFP genes are expressed in reproductive organs although have different expression patterns. Cis-elements analysis showed that there are six kinds of hormone response elements in CsOFPs and exogenous gibberellin treatment leads to a ‘first increase then decrease’ expression pattern of CsOFP7, CsOFP11 and CsOFP12. Ectopic expression of CsOFP11 in Arabidopsis resulted in shorter and blunt siliques. Conclusions: Together, these results indicated that CsOFPs may play important roles in cucumber fruit development.


2021 ◽  
Vol 12 ◽  
Author(s):  
Juping Zhang ◽  
Shengjun Feng ◽  
Jing Yuan ◽  
Chen Wang ◽  
Tao Lu ◽  
...  

Cucumber is one of the most widely grown vegetables in China and an indispensable fresh fruit in the diet. With the development of society, the demand of people for cucumber quality is higher and higher. Therefore, cultivating high-quality cucumber varieties is one of the main goals of cucumber breeding. With the rapid development of biotechnology such as molecular marker, cucumber quality control network is becoming clear. In this review, we describe the formation mechanism of cucumber fruit quality from three aspects: (1) the commercial quality of cucumber fruit, (2) nutritional quality formation, and (3) flavor quality of cucumber fruit. In addition, the determinants of cucumber fruit quality were summarized from two aspects of genetic regulation and cultivation methods in order to provide ideas for cucumber researchers and cultivators to improve fruit quality.


2020 ◽  
Vol 27 (2) ◽  
pp. 95-100
Author(s):  
A.O. Akinwole ◽  
A.B. Dauda ◽  
E.B. Oyewole

This paper reports findings of an experiment carried out in a greenhouse to evaluate the growth and fruits quality of cucumber grown in plots irrigated with African catfish cultured wastewater compared with those irrigated with ordinary well water. Six circular African catfish culture tanks and six cucumber planter boxes were used for this experiment, three each for the fish cum cucumber integrated system and the control system of cucumber irrigated with ordinary well water. The results of the research indicated that fish cultured wastewater had a better influence on the plant height, the number, length, and diameterof leaves, as well as the diameter and length of the fruits. Six experts, each independently assessed fruits from the two treatments for juiciness, sweetness, taste and crispiness. The fruits were assessed by experts who though were aware of the purpose of the evaluation, did not know the identity of fruits they were assessing. The fish effluent fertigated cucumber fruits had a higher mean score in juiciness, sweetness, taste and crispiness. Wastewater from the African catfish production system thus exhibits the potential for reuse in the production of cucumber plants as it had no negative effect on the organoleptic quality of cucumber fruit produced. Keywords: Cucumis sativus, Fish, Growth, Yield, Wastewater.


2018 ◽  
Vol 8 ◽  
pp. 1339-1349
Author(s):  
Rezzan Kasim ◽  
Mehmet Ufuk Kasim ◽  
Kubra Yasar ◽  
Tugce Sahin

In this study, the effects of ethanol which is applied in different forms as liquid and vapor after harvest on chilling injury, color and overall quality of cucumber (Cucumis sativus L. cv. Ceylan) during storage were examined. For the liquid ethanol treatments, cucumber fruits were immersed in water comprising different concentration of ethanol for 5 minutes. In order to apply ethanol in the form of steam, a pad was firstly impregnated with ethanol at different doses. This pad was placed in a polystyrene foam dishes, and after the cucumber fruit is placed on it, the dishes wrapped with stretch film. The doses for used the both ethanol treatment as: Controldip(CD), Controlvapor (CV), 200 µL/L, 400 µL/L , 800 µL/L and 1600 µL/L. It was concluded that the liquid ethanol treatment at the dose of 1600 µL/L was effectively delayed of chilling injury, softening and decay rate.


2020 ◽  
Vol 21 (11) ◽  
pp. 3857 ◽  
Author(s):  
Xiaohong Lu ◽  
Wenqian Liu ◽  
Chenggang Xiang ◽  
Xiaojun Li ◽  
Qing Wang ◽  
...  

Cucumber (Cucumis sativus L.) is one of the most important cucurbit vegetables but is often subjected to stress during cultivation. GRAS (gibberellic acid insensitive, repressor of GAI, and scarecrow) genes encode a family of transcriptional factors that regulate plant growth and development. In the model plant Arabidopsis thaliana, GRAS family genes function in formation of axillary meristem and root radial structure, phytohormone (gibberellin) signal transduction, light signal transduction and abiotic/biological stress. In this study, a gene family was comprehensively analyzed from the aspects of evolutionary tree, gene structure, chromosome location, evolutionary and expression pattern by means of bioinformatics; 37 GRAS gene family members have been screened from cucumber. We reconstructed an evolutionary tree based on multiple sequence alignment of the typical GRAS domain and conserved motif sequences with those of other species (A. thaliana and Solanum lycopersicum). Cucumber GRAS family was divided into 10 groups according to the classification of Arabidopsis and tomato genes. We conclude that tandem and segmental duplication have played important roles in the expansion and evolution of the cucumber GRAS (CsaGRAS) family. Expression patterns of CsaGRAS genes in different tissues and under cold treatment, combined with gene ontology annotation and interaction network analysis, revealed potentially different functions for CsaGRAS genes in response to cold tolerance, with members of the SHR, SCR and DELLA subfamilies likely playing important roles. In conclusion, this study provides valuable information and candidate genes for improving cucumber tolerance to cold stress.


Irriga ◽  
2018 ◽  
Vol 23 (3) ◽  
pp. 535-547
Author(s):  
Thayana Cristina de Andrade Rodrigues ◽  
JOAQUIM ALVES DE LIMA JUNIOR ◽  
Rodrigo Otávio Rodrigues Melo Souza ◽  
Cândido F De Oliveira Neto ◽  
Ivan Carlos F Martins

VIABILIDADE TÉCNICA DA PRODUÇÃO DE PEPINO JAPONÊS SUBMETIDO A DIFERENTES LÂMINAS DE IRRIGAÇÃO     THAYANA CRISTINA DE ANDRADE RODRIGUES1; JOAQUIM ALVES DE LIMA JUNIOR2; RODRIGO OTÁVIO RODRIGUES DE MELO SOUZA3; CANDIDO FERREIRA DE OLIVEIRA NETO4 E IVAN CARLOS FERNANDES MARTINS5   1Engª Agrônoma, Mestre em Agronomia, Universidade Federal Rural da Amazônia – UFRA, Instituto de Ciências Agrárias, Av. Pres. Tancredo Neves nº 2501, Terra Firme, CEP:66077-830, Belém-PA, Brasil, E-mail: [email protected]. 2Professor Adjunto, Universidade Federal Rural da Amazônia, campus Capanema, Rua João Pessoa nº 121, Centro, CEP:68700-030, Capanema-PA, Brasil, E-mail: [email protected]. 3Professor Associado, Instituto de Ciências Agrárias, Universidade Federal Rural da Amazônia, Av. Pres. Tancredo Neves nº 2501, Terra Firme, CEP:66077-830, Belém-PA, Brasil, E-mail: [email protected]. 4Professor Associado, Instituto de Ciências Agrárias, Universidade Federal Rural da Amazônia, Av. Pres. Tancredo Neves nº 2501, Terra Firme, CEP:66077-830, Belém-PA, Brasil, E-mail: [email protected]. 5Professor Adjunto, Universidade Federal Rural da Amazônia, campus Capanema, Rua João Pessoa nº 121, Centro, CEP:68700-030, Capanema-PA, Brasil, E-mail: [email protected].     1 RESUMO   A deficiência hídrica é normalmente o fator que mais limita a produtividade e qualidade de hortaliças. Neste cenário, a irrigação surge como um importante fator de produção, além de promotor da máxima produtividade e da qualidade do produto. O objetivo deste trabalho foi identificar um manejo adequado da irrigação por gotejamento, com minitanque evaporimétrico, para o desenvolvimento e produção do pepino japonês em ambiente protegido. O ensaio foi realizado na Fazenda Experimental da Universidade Federal Rural da Amazônia, município de Igarapé – Açu/PA. Utilizou-se o delineamento em blocos casualizados com cinco tratamentos e quatro repetições, aplicando-se lâminas de 30, 60, 90,120 e 150% baseadas na evaporação do minitanque. Observou-se que de modo geral, tanto a deficiência quanto o excesso hídrico afetaram negativamente as variáveis analisadas. Os melhores índices de produtividade e crescimento foram encontrados nas lâminas de 90 e 120% da ECA e a maior eficiência do uso da água, obtida com as menores lâminas de irrigação, sendo o valor máximo, de 2842,53 kg ha-1 mm-1, encontrado no tratamento com 30 % da ECA.   Palavras-chave: Cucumis sativus L.; evaporação; gotejamento; manejo de água.     RODRIGUES, T.C.A.; LIMA JÚNIOR, J.A.; DE MELO SOUZA, R.O.R.; OLIVEIRA NETO, C. F.; MARTINS, I.C.F. TECHNICAL FEASIBILITY OF JAPANESE CUCUMBER PRODUCTION SUBMITTED TO DIFFERENT IRRIGATION BLADES     2 ABSTRACT   Water deficiency is usually the factor that most limits the productivity and quality of vegetables. In this scenario, irrigation appears as an important factor of production, besides promoting the maximum productivity and product quality. The objective of this work was to identify an adequate management of drip irrigation, with reduced pan, for the development and production of japanese cucumber in a protected environment. The experiment was carried out at the Experimental Farm of the Rural Federal University of Amazônia, county of Igarapé - Açu - PA. A randomized block design with five treatments and four replicates was used, with slides of 30, 60, 90, 120 and 150% based on the evaporation of a modified pan. It was observed that, in general, both the deficiency and the water excess negatively affected the analyzed variables. The best productivity and growth indexes were found in the 90% and 120% ECA slides and the highest water use efficiency obtained with the lowest irrigation depths. The maximum value was 2842.53 kg ha-1 mm- 1, found in the treatment with 30% ECA.   Keywords: Cucumis sativus L.; drip irrigation; evaporation; water management


2020 ◽  
Vol 12 (9) ◽  
pp. 245
Author(s):  
P. V. Peña Alvarenga ◽  
Y. M. Lezcano Aquino ◽  
L. Ayala Aguilera ◽  
M. J. González Vera ◽  
W. N. Ortiz ◽  
...  

The human consumption of vegetables in different parts of the world is quite high, among them tomato stands out on a larger scale and not so far, also is cucumber, both with great economic importance. Due to the problems regarding the vigor of many seeds, techniques that seek to improve the establishment of the seedlings in a uniform way have been implemented. One technique is the osmotic conditioning to which the seeds are submitted, for which compound solutions such as polyethylene glycol or potassium nitrate can be used, with which very satisfactory results are obtained under laboratory and field conditions The objective of this investigation was to evaluate the effect of different doses and osmotic solutions on the physiological quality of seeds of tomato (Solanum lycopersicum L.) and cucumber (Cucumis sativus L.) in laboratory and field conditions. The evaluated variables were germination percentage, germination speed index, root length and emergence of seedlings. The tomato seeds were conditioned with PEG-6000 (-0.2, -0.4, -0.6 and -0.8 Mpa) and stored for a 30 days period, and as for the cucumber seeds with PEG-6000 (-0.2 and -0.1 Mpa) and with KNO³ (100 mg and 300 mg) with a storage period of 45 days. It is concluded that, in tomato seeds, germination did not present statistical differences, however, the variables referring to vigor were favored with the conditioning in the presence of PEG-6000 with the (-0.2 Mpa) concentration, while in cucumber seeds the germination percentage was better using PEG 6000 compared to nitrate, while for vigor variables it behaved better in the presence of a concentration of (-0.2 Mpa) of PEG.


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