Comparison of qualitative traits, biological value, chemical compounds of sweet pepper fruit

2012 ◽  
Author(s):  
Halina Buczkowska ◽  
Zenia Michałojć
Keyword(s):  
Chemical Compounds ◽  
Sweet Pepper ◽  
Biological Value ◽  
Qualitative Traits ◽  
Pepper Fruit

scholarly journals Do AMF and Irrigation Regimes Affect Sweet Pepper Fruit Quality under Open Field Conditions?

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2349
Author(s):  
Renata Nurzyńska-Wierdak ◽  
Halina Buczkowska ◽  
Andrzej Sałata
Keyword(s):  
Vitamin C ◽  
Open Field ◽  
Sweet Pepper ◽  
Temperate Climate ◽  
Morphological Parameters ◽  
Fresh Matter ◽  
Climate Conditions ◽  
Biological Value ◽  
Organic Farm ◽  
Pepper Fruit

The aim of this study was to determine the effect of a mycorrhizal inoculation (AMF) and irrigation regime on certain yield morphological parameters and the biological value of fruits of open field-grown sweet pepper under temperate climate conditions. A study on the Polish hybrid cultivar ‘Roberta F1’ was conducted over the period 2016–2018 in a private certified organic farm. Sweet pepper was harvested at physiological maturity from the second 10 days of August to the first 10 days of October. AMF and irrigation were shown to significantly modify the selected morphological parameters of the peppers. Fruits with the highest weight, length, and width were harvested from AMF-inoculated plants, both irrigated and non-irrigated ones. The chemical composition and antioxidant activity (AA) of pepper fruit extracts were significantly affected by AMF and irrigation. AMF application contributed to a decrease in the percentage of dry matter, vitamin C, reducing sugars, extract, carotenoids, and AA. Irrigation, on the other hand, had a beneficial effect on enhancing the biological value of pepper fruits (except for vitamin C), also increasing their AA. The highest levels of carotenoids (4.64 mg 100 g−1 of fresh matter (FM) were found in the fruits of irrigated plants without AMF, whereas the highest levels of vitamin C (134.10 mg 100 g−1 FM) were accumulated by the fruits of plants grown without AMF and without irrigation.

Nutritional and energy value of sweet pepper fruit depending on variety

2018 ◽  
Vol 6 (10) ◽  
pp. 150-158
Author(s):  
Viktor Koltunov ◽  
◽  
Kateryna Kalaida ◽  
Keyword(s):  
Sweet Pepper ◽  
Energy Value ◽  
Pepper Fruit

scholarly journals Sweet Pepper (Capsicum annuum L.) Fruits Contain an Atypical Peroxisomal Catalase That Is Modulated by Reactive Oxygen and Nitrogen Species

Antioxidants ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 374 ◽  
Author(s):  
Marta Rodríguez-Ruiz ◽  
Salvador González-Gordo ◽  
Amanda Cañas ◽  
María Jesús Campos ◽  
Alberto Paradela ◽  
...  
Keyword(s):  
Capsicum Annuum ◽  
Fruit Ripening ◽  
Reactive Oxygen ◽  
Bovine Liver ◽  
Sweet Pepper ◽  
Cysteine Residue ◽  
Nitrogen Species ◽  
Capsicum Annuum L ◽  
Native Molecular Mass ◽  
Pepper Fruit

During the ripening of sweet pepper (Capsicum annuum L.) fruits, in a genetically controlled scenario, enormous metabolic changes occur that affect the physiology of most cell compartments. Peroxisomal catalase gene expression decreases after pepper fruit ripening, while the enzyme is also susceptible to undergo post-translational modifications (nitration, S-nitrosation, and oxidation) promoted by reactive oxygen and nitrogen species (ROS/RNS). Unlike most plant catalases, the pepper fruit enzyme acts as a homodimer, with an atypical native molecular mass of 125 to 135 kDa and an isoelectric point of 7.4, which is higher than that of most plant catalases. These data suggest that ROS/RNS could be essential to modulate the role of catalase in maintaining basic cellular peroxisomal functions during pepper fruit ripening when nitro-oxidative stress occurs. Using catalase from bovine liver as a model and biotin-switch labeling, in-gel trypsin digestion, and nanoliquid chromatography coupled with mass spectrometry, it was found that Cys377 from the bovine enzyme could potentially undergo S-nitrosation. To our knowledge, this is the first report of a cysteine residue from catalase that can be post-translationally modified by S-nitrosation, which makes it especially important to find the target points where the enzyme can be modulated under either physiological or adverse conditions.

scholarly journals Nitric oxide-dependent regulation of sweet pepper fruit ripening

2019 ◽  
Vol 70 (17) ◽  
pp. 4557-4570 ◽  
Author(s):  
Salvador González-Gordo ◽  
Rocío Bautista ◽  
M Gonzalo Claros ◽  
Amanda Cañas ◽  
José M Palma ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Fruit Ripening ◽  
Biochemical Analysis ◽  
Sweet Pepper ◽  
Supporting Evidence ◽  
Functional Categories ◽  
Fatty Acid Profiling ◽  
Pepper Fruit

Abstract Ripening is a complex physiological process that involves changes in reactive nitrogen and oxygen species that govern the shelf-life and quality of fruits. Nitric oxide (NO)-dependent changes in the sweet pepper fruit transcriptome were determined by treating fruits at the initial breaking point stage with NO gas. Fruits were also harvested at the immature (green) and ripe (red) stages. Fruit ripening in the absence of NO resulted in changes in the abundance of 8805 transcripts whose function could be identified. Among these, functional clusters associated with reactive oxygen/nitrogen species and lipid metabolism were significantly modified. NO treatment resulted in the differential expression of 498 genes framed within these functional categories. Biochemical analysis revealed that NO treatment resulted in changes in fatty acid profiling, glutathione and proline contents, and the extent of lipid peroxidation, as well as increases in the activity of ascorbate peroxidase and lipoxygenase. These data provide supporting evidence for the crucial role of NO in the ripening of pepper fruit.

scholarly journals Species Composition and Toxigenic Potential of Fusarium Isolates Causing Fruit Rot of Sweet Pepper in China

Toxins ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 690 ◽  
Author(s):  
Jianhua Wang ◽  
Shuangxia Wang ◽  
Zhiyong Zhao ◽  
Shanhai Lin ◽  
François Van Hove ◽  
...  
Keyword(s):  
Fusarium Species ◽  
Fusaric Acid ◽  
Sweet Pepper ◽  
Fruit Rot ◽  
Limited Information ◽  
Liquid Chromatography Mass Spectrometry ◽  
Spectrometry Method ◽  
Mycotoxin Production ◽  
Mycotoxin Contamination ◽  
Pepper Fruit

Apart from causing serious yield losses, various kinds of mycotoxins may be accumulated in plant tissues infected by Fusarium strains. Fusarium mycotoxin contamination is one of the most important concerns in the food safety field nowadays. However, limited information on the causal agents, etiology, and mycotoxin production of this disease is available on pepper in China. This research was conducted to identify the Fusarium species causing pepper fruit rot and analyze their toxigenic potential in China. Forty-two Fusarium strains obtained from diseased pepper from six provinces were identified as F. equiseti (27 strains), F. solani (10 strains), F. fujikuroi (five strains). This is the first report of F. equiseti, F. solani and F. fujikuroi associated with pepper fruit rot in China, which revealed that the population structure of Fusarium species in this study was quite different from those surveyed in other countries, such as Canada and Belgium. The mycotoxin production capabilities were assessed using a well-established liquid chromatography mass spectrometry method. Out of the thirty-six target mycotoxins, fumonisins B1 and B2, fusaric acid, beauvericin, moniliformin, and nivalenol were detected in pepper tissues. Furthermore, some mycotoxins were found in non-colonized parts of sweet pepper fruit, implying migration from colonized to non-colonized parts of pepper tissues, which implied the risk of mycotoxin contamination in non-infected parts of food products.

RIPENING OF ATTACHED AND DETACHED SWEET PEPPER FRUIT CV. ‘DOMINO’

1998 ◽  
pp. 503-503 ◽  
Author(s):  
T. Tadesse ◽  
M.A. Nichols ◽  
E.W. Hewett
Keyword(s):  
Sweet Pepper ◽  
Pepper Fruit

scholarly journals DNA methylation is involved in the regulation of pepper fruit ripening and interacts with phytohormones

2020 ◽  
Vol 71 (6) ◽  
pp. 1928-1942 ◽  
Author(s):  
Kai Xiao ◽  
Jie Chen ◽  
Qixiumei He ◽  
Yixin Wang ◽  
Huolin Shen ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Fruit Ripening ◽  
Sweet Pepper ◽  
Soluble Solids ◽  
Upstream Region ◽  
Transcriptional Level ◽  
Gibberellin Biosynthesis ◽  
Virus Induced Gene Silencing ◽  
Dna Hypomethylation ◽  
Pepper Fruit

Abstract There is growing evidence to suggest that epigenetic tags, especially DNA methylation, are critical regulators of fruit ripening. To examine whether this is the case in sweet pepper (Capsicum annuum) we conducted experiments at the transcriptional, epigenetic, and physiological levels. McrBC PCR, bisulfite sequencing, and real-time PCR demonstrated that DNA hypomethylation occurred in the upstream region of the transcription start site of some genes related to pepper ripening at the turning stage, which may be attributed to up-regulation of CaDML2-like and down-regulation of CaMET1-like1, CaMET1-like2, CaCMT2-like, and CaCMT4-like. Silencing of CaMET1-like1 by virus-induced gene silencing led to DNA hypomethylation, increased content of soluble solids, and accumulation of carotenoids in the fruit, which was accompanied by changes in expression of genes involved in capsanthin/capsorubin biosynthesis, cell wall degradation, and phytohormone metabolism and signaling. Endogenous ABA increased during fruit ripening, whereas endogenous IAA showed an opposite trend. No ethylene signal was detected during ripening. DNA hypomethylation repressed the expression of auxin and gibberellin biosynthesis genes as well as cytokinin degradation genes, but induced the expression of ABA biosynthesis genes. In mature-green pericarp, exogenous ABA induced expression of CaDML2-like but repressed that of CaCMT4-like. IAA treatment promoted the transcription of CaMET1-like1 and CaCMT3-like. Ethephon significantly up-regulated the expression of CaDML2-like. Treatment with GA3 and 6-BA showed indistinct effects on DNA methylation at the transcriptional level. On the basis of the results, a model is proposed that suggests a high likelihood of a role for DNA methylation in the regulation of ripening in the non-climacteric pepper fruit.

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