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Role of Reactive Oxygen Species in the Initiation of Plant Retrograde Signaling

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Phyton-International Journal of Experimental Botany 2022年第5期91卷 905-913页

作者： Eduardo-Antonio Trillo-Hernández Arturo Duarte Sierra Martín Ernesto Tiznado-Hernández Centro de Investigación en Alimentación y desarrollo A.C.Tecnología de Alimentos de Origen VegetalLaboratorio de Fisiología y Biología Molecular de PlantasHermosillo83304México department of Food Science and Plant Research and Innovation Center Laval UniversityQuebecQCG1V 0A6Canada

The interaction between the nucleus and the different organelles is important in the physiology of the ***-tive oxygen species(ROS)are a by-product of the oxidation of organic molecules to obtain energy by the need to carry out the electron transfer between the different enzymatic ***,they also have a role in the generation of what is known as retrograde *** signal comes from the different organelles in which the oxidation of molecules or the electron transference is taking place such as mitochondria and ***,ROS can also induce the release of signals from the *** seems that these signals plays a role communicating to the nucleus the current status of the different parts of the plant cell to induce a changes in gene *** this review,the molecular mechanism of ROS retrograde signaling is described.

关键词： Reactive oxygen species retrograde signaling mitochondria chloroplast

Effect of split applications of urea on protein size distribution, physical dough properties, and baking performance of five experimental bread wheat lines

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Agricultural Sciences 2011年第3期2卷 181-190页

作者： Alma Rosa Islas-Rubio Karla Chávez-Quiroz Francisco Vásquez-Lara Brenda Silva-Espinoza María del Carmen Granados-nevárez Humberto Gonzalez-Ríos Miguel Camacho-Casas departamento de tecnología de alimentos de origen vegetal Centro de Investigación en Alimentación y Desarrollo A.C. Carretera a la Victoria Km 0.6 Hermosillo Sonora México departamento de tecnología de alimentos de origen vegetal Centro de Investigación en Alimentación y Desarrollo A.C. Carretera a la Victoria Km 0.6 Hermosillo Sonora México. 83000

Five experimental bread wheat lines (BWL) were grown at the Yaqui Valley Experimental Station in Sonora, México during two consecutive growing cycles. The effect of five nitrogen fertilization (nF) treatments on protein size distribution (PSD), physical dough properties (PDP), and baking performance of the BWL was evaluated. Polymeric and monomeric proteins were evalu-ated by SE-HPLC. PDP were carried out by the national Mixograph and the TA-XT2 Texture Analyzer. Baking performance was evaluated using the straight dough method. Protein content (PC), main protein fractions (glutenins, gliadins, albumins-globulins), and mixograph development time (MDT) were significantly influenced by nF treatment and BWL but not by their interaction. On the other hand, PDP measured by the Kieffer rig, and baking performance were significantly influenced by the main factors (nF and BWL) and their interaction. The amount and timing of fertilizer applied to the BWL modified the PC, PSD, PDP, and bread loaf volume. PDP exhibited a larger variation in comparison to the PSD of glutenins. The split application of 150 kg of urea/ha (50-50-50) to all BWL showed a better loaf volume response than the same amount of urea applied at sowing (150-0-0). The application of 300 kg of urea/ha to all BWL, either at sowing or at three split applications of 100 kg of urea/ha each, resulted in higher flour unextractable polymeric protein (FUPP). On the other hand, the split application of 100-100-100 kg of urea/ha to three of the BWL represented the higher total unextractable polymeric protein (TUPP). Differences on PC and PSD were reflected on differences on PDP and bread loaf volume observed among the BWL.

关键词： Wheat nitrogen Fertilization Protein Composition Dough Properties

Antioxidant Capacity and Bioaccessibility of Synergic Mango (cv. Ataulfo) Peel Phenolic Compounds in Edible Coatings Applied to Fresh-Cut Papaya

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Food and nutrition Sciences 2015年第3期6卷 365-373页

作者： Gustavo Rubén Velderrain-Rodríguez Maribel Ovando-Martínez Mónica Villegas-Ochoa Jesús Fernando Ayala-Zavala Abraham Wall-Medrano Emilio álvarez-Parrilla Tomás Jesús Madera-Santana Humberto Astiazarán-García Orlando Tortoledo-Ortiz Gustavo Adolfo González-Aguilar coordinación en tecnología de alimentos de origen vegetal Centro de Investigación en Alimentación y Desarrollo Hermosillo México Instituto de Ciencias Biomédicas Universidad Autónoma de Ciudad Juárez Chihuahua México departamento de nutrición Humana Coordinación de Nutrición Centro de Investigación en Alimentación y Desarrollo Hermosillo México

Edible coatings (EC) applied to fresh-cut fruits are used to increase their shelf-life and to deliver antioxidant bioactives such as phenolic compounds (PC) that reduce their oxidative damage while enhance their functional value. However, the combination of different PC may have synergetic, additive or antagonic effects on the final antioxidant capacity (AOXC). The aim of this study was to examine the AOXC of binary combinations of selected PC from mango peel and their bioaccessibility from 6% alginate-based EC applied to fresh-cut papaya, under simulated gastrointestinal conditions. Among equimolar (0.1 mM) combinations, gallic + protocatechuic acids (AB) were synergic in radical scavenging activity (RSA) as assayed by DPPH (90% RSA) and FRAP (0.39 mg TE/mL) methods;when assayed in 6% alginate-based EC, their RSA increased (117.85% RSA, 0.88 mg TE/mL). The application of EC + AB to papaya cubes and further in vitro digestion decreased their AOXC probably due to interactions between EC and papaya’s matrix. Therefore, further studies are needed in order to evaluate the effect of combination of phenolic and EC applied in other fruits matrix on antioxidants bioaccessibility.

关键词： Edible Coating Phenolic Acids Antioxidant Capacity Bioaccessibility

Contribution of Major Hydrophilic and Lipophilic Antioxidants from Papaya Fruit to Total Antioxidant Capacity

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Food and nutrition Sciences 2013年第8期4卷 93-100页

作者： Laura E. Gayosso-García Sancho Elhadi M. Yahia Gustavo A. González-Aguilar coordinación de tecnología de alimentos de origen vegetal Centro de Investigación en Alimentación y Desarrollo Hermosillo México Facultad de Ciencias naturales Universidad Autónoma de Querétaro Querétaro México Jefatura de nutrición Humana Universidad Estatal de Sonora Hermosillo México

Several studies have shown that phenolic and carotenoid compounds protect against oxidative stress, reducing the risk of cardiovascular diseases and some types of cancers. The objective of this research was to determine the individual contribution of the main phenolic compounds from the papaya fruit skin and the individual contribution of main carotenoids from the pulp for total antioxidant capacity at four ripening stages;and the individual and combined radical scavenging ability used the essays DPPH (radical 2, 2-diphenyl-1-picryhydrazyl) and ABTS (radical 2, 20-azino-bis (3-ethylbenzothiazoline)-6 sulphonic acid). Phenolic acids standards for this study were ferulic (FA), caffeic (CA) and p-coumaric (pCA) acids and carotenoids studied were Lycopene, β-carotene and β-cryptoxanthin. The phenol that showed the best DPPH· and ABTS·+ radical scavenging ability was CA, with 89.47% and 92.98%, respectively. Lycopene contributed the greatest to the TAC (11.9-43.2). Lycopene also showed the best DPPH· and ABTS ·+ radical scavenging ability with 62.12% and 94.26%, respectively. Antiradical ability of phenolics and carotenoids depended on the structure of the compound and its concentration.

关键词： Carica Papaya Carotenoids Phenolics Radical Scavenging Activity TEAC DPPH

Indigestible fraction of guava fruit:Phenolic profile,colonic fermentation and effect on HT-29 cells

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Food Bioscience 2022年第2期46卷 563-571页

作者： Francisco J.Blancas-Benitez Jara P´erez-Jim´enez JAdriana Sa˜nudo-Barajas nuria E.Rocha-Guzm´an Gustavo A.Gonz´alez-Aguilar Juscelino Tovar Sonia G.S´ayago-Ayerdi Tecnol´ogico nacional de M´exico/Instituto Tecnol´ogico de Tepic Laboratorio Integral de Investigaci´on en AlimentosAv.Tecnol´ogico 2595CP 63175TepicNayaritMexico Institute of Food Science Technology and Nutrition(ICTAN-CSIC)Jos´e Antonio Novais 1028040MadridSpain Centro de Investigaci´on en Alimentaci´on y desarrollo A.C.Unidad Culiac´an.ApdoPostal 32-A.80129Culiac´anSinaloaMexico Tecnol´ogico nacional de M´exico/Instituto Tecnol´ogico de Durango Departamento de Ingenierías Química y Bioquímica BlvdFelipe Pescador 1830Ote.Col.Nueva VizcayaCP 3408078000DurangoDgo.Mexico coordinaci´on de tecnología de alimentos de origen vegetal Lab.de Antioxidantes y Alimentos FuncionalesCentro de Investigaci´on en Alimentaci´on y DesarrolloA.C.Carretera a la Victoria Km 0.6Col.La VictoriaHermosillo Sonora83000Mexico department of Food Technology Engineering and NutritionLund UniversityP.O.Box 124SE-22100LundSweden

Guava fruit is rich in phenolic compounds(PCs),whose metabolic fate has not been ***-digestible carbohydrates and PCs in whole guava(WG)and seedless guava(SG)were submitted to an in vitro colonic fermentation,followed by evaluation of the anti-proliferative activity of the fermentation extracts in HT-29 cancer cell *** main PCs in both samples were(+)-gallocatechin and gallic acid,while procyanidin B was the most abundant one associated with soluble indigestible fraction and quercetin predominated in the insoluble indigestible *** fermentability index at 24 h was 78.84%in WG and 84.74%for SG,near to the value for raffinose used as reference,with butyric acid as the main short chain fatty acids(SCFA)*** greatest antiproliferative effects were observed in the SG at 12 h of fermentation and WG at 24 h of *** results allow to suggest consumption of guava fruit,either with or without seeds,as a feasible way to maintain colonic health.

关键词： Short chain fatty acids(SCFA) Phenolic compounds Indigestible fraction In vitro colonic fermentation Antiproliferative Psidium guajava L

Inhibition of Proliferation of Breast Cancer Cells MCF7 and MDA-MB-231 by Lipophilic Extracts of Papaya (Carica papayaL. var. Maradol) Fruit

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Food and nutrition Sciences 2014年第21期5卷 2097-2103页

作者： Laura E. Gayosso-García Sancho Elhadi M. Yahia Pablo García-Solís Gustavo A. González-Aguilar Jefatura de nutrició n Humana Universidad Estatal de Sonora Hermosillo M&#233 xico Facultad de Ciencias naturales Universidad Aut&#243 noma de Queré taro Quer&#233 taro M&#233 xico Facultad de Medicina Universidad Aut&#243 noma de Queré taro Quer&#233 taro M&#233 xico coordinació n de tecnologí a de alimentos de origen vegetal Centro de Investigaci&#243 n en Alimentació n y desarrollo A.C. Hermosillo M&#233 xico

Several epidemiological studies have suggested that carotenoids have antineoplasic activities. The objective of this study was to determine the antiproliferative effect of rich carotenoid lipophilic extracts of papaya fruit pulp ( Carica papaya L., cv Maradol) in breast cancer cells, MCF-7 (estrogen receptor positive) and MDA-MB-231 (estrogen receptor negative), and in non-tumoral mammary epithelial cells MCF-12F. Antiproliferative effect was evaluated using the methylthiazolydiphenyl-tetrazolium bromide (MTT) assay and testing lipophilic extracts from different papaya fruit ripening stages (RS1, RS2, RS3, RS4), at different times (24, 48 and 72 h). Papaya lipophilic extracts do not inhibit cell proliferation of MCF-12F and MDA-MB-231 cells. However, MCF-7 cells showed a significant reduction in proliferation at 72 h with the RS4 papaya extract. Results suggested that lipophilic extracts had different action mechanisms on each type of cells and therefore, more studies were required to elucidate such mechanisms.

关键词： Carica papaya Antiproliferative Activity Breast Cancer Carotenoids

Cryopreservation by Vitrification of Vitis vinifera cv. ＂Red Globe＂ Zygotic Embryos and Effect on the Expression of DnA Methyltransferase Genes

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Journal of Agricultural Science and Technology(B) 2016年第6期6卷 387-399页

作者： Heriberto Garcia-Coronado Maria-Elena Baez-Flores Rosalba Troncoso-Rojas Marisela Rivera-Dominguez Martin-Emesto Tiznado-Hernandez coordinacion de tecnologia de alimentos de origen vegetal Centro de Investigacion en Alimentacion y Desarrollo A.C. (CLAD)Hermosillo Sonora CP 83304 Mexico Facultad de Ciencias Quimico Biol6gicas Universidad Autonoma de Sinaloa Culiacan Sinaloa CP 80013 Mexico coordinacion de Ciencia de los alimentos Centro de Investigacion en Alimentacion y Desarrollo A.C. (CLAD) HermosilloSonora CP 83304 Mexico

Mexico is a large producer of table grape （Vitis vinifera L.） and therefore it is important to develop protocols to store the grape varieties germplasm. The objective of the present work was to design a protocol for the cryopreservation by vitrification of zygotic embryos of V. vinifera cv. ＂Red Globe＂ and evaluate possible epigenetics changes. The plant vitrification solution 2 （PVS2） was utilized before the utilization of liquid nitrogen （Ln）. The effect of this protocol on embryo viability was tested by the triphenyl-tetrazolium chloride solution, as well as by the in vitro development of grape embryos into plantlet. A cDnA expression library of grape zygotic embryos was created to isolate expressed sequence tags of several DnA methyltrasferases. Gene expression of domains rearranged methyltransferase type 1 （DMR1） and DnA （cytosine-5）-methyltransferase 1 （MET1-2） isozymes was analyzed by quantitative reverse transcriptase PCR. The optimal conditions for vitrification were 10 min in 50% PVS2, followed by I0 min in 100% PVS2. Under these conditions, about 30% of plantlet was obtained from embryos after cryopreservation. It was recorded a reduction in the MET1-2 gene expression, which plays a role in the maintenance of DnA methylation. It is possible to cryopreserve viable grape zygotic embryos, although the treatment seems to induce alterations in the normal DnA methylation pattern of the zygotic embryo genome.

关键词： Vitis vinifera zygotic embryo cryopreservation vitrification DnA methyltransferase.

Biological Control of Ceratitis capitata(Diptera: Tephritidae) in Argentina: Releases of Diachasmimorpha longicaudata(Hymenoptera: Braconidae) in Fruit-Producing Semi-Arid Areas of San Juan

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natural Science 2014年第9期6卷 664-675页

作者： Lorena Suarez Fernando Murua natalia Lara Jorge Escobar Gustavo Taret José Luis Rubio Guido Van nieuwenhove Laura Bezdjian Pablo Schliserman Sergio Marcelo Ovruski Laboratorio de Investigaciones Ecoetológicas de Moscas de la Fruta y sus enemigos naturales (LIEMen) División Control Biológico de Plagas Planta Piloto de Procesos Industriales Microbiológicos y Biotecnología (PROIMI)—CCT Tucumán—CONICET Tucumán Argentina Programa de Control y Erradicación de Mosca de los Frutos de San Juan (ProCEM)—Dirección de Sanidad vegetal Animal y Alimentos San Juan Argentina Programa de Control y Erradicación de Mosca de los Frutos de San Juan (ProCEM)—Dirección de Sanidad vegetal Animal y Alimentos San Juan Argentina IMCn-Diversidad de Invertebrados Departamento de Biología San Juan Argentina

The Mediterranean fruit fly (Medfly), Ceratitis capitata (Wiedemann) is one of the major pests of fruit crops in Argentina and it is a phytosanitary barrier to the export of fresh fruits. In the Province of San Juan, located in the central-eastern region of Argentina known as Cuyo, control strategies against Medfly in fruit-producing irrigated-valleys have been implemented by the national Fruit Fly Control and Eradication Program (ProCEM) jointly with the provincial government and the producers. This program uses an area-wide integrated pest management approach that includes the use of environment-friendly strategies to suppress or eradicate Medfly, such as the use of the sterile insect technique and the application of new-generation bait sprays, and more recently the release of the Indo-Pacific parasitoid Diachasmimorpha longicaudata (Ashmead). This exotic larval-prepupal endoparasitoid is being mass-reared on larvae of Vienna 8 TSL C. capitata strain at the BioPlanta San Juan facility. In this respect, the objective of this study was to assess the effectiveness of laboratory-reared D. longicaudata females in order to find and successfully parasitize Medfly larvae in different host fruit species once released under semi-arid environmental conditions in ecologically isolated fruit-growing valleys of San Juan. Ground releases were used to disperse parasitoids in 6 fruit-producing valleys. In total, 40,000 adult parasitoids were released at places with various Medfly host plants bearing fruits and in which no insecticides were regularly applied, such as backyards and small orchards. 119 D. longicaudata adults were recovered from 6 Medfly-infested fruit species that were collected in 5 release sites (Pocito, Zonda, Santa Lucía, Caucete, and Rivadavia). The highest number of parasitoids was recovered from fig, followed by grape, rose, orange, tangerine, and persimmon. Data provided from this study open up the possibility of implementing a parasitoid mass-release program

关键词： environment-Friendly Strategies Medfly Parasitoid Release Irrigated Valleys

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1-甲基环丙烯延长菠菜采后保鲜期的研究

保鲜与加工 2011年第4期 54-54页

作者： Gustavo Gergoff Grozeff María E.Micieli Facundo Gómez Laura Fernández Juan J.Guiamet Alicia R.Chavesb Carlos G.Bartoli Instituto de Fisiología vegetal Universidad Nacional de La Plata-CCT CONICET La Platacc327(1900)La PlataArgentina Centro de Investigacióny desarrollo en Criotecnología de alimentos Facultad de Ciencias ExactasUniversidad Nacional de La Plata-CCT CONICET La Plata47y116(1900)La PlataArgentina

分别对经0.1、1.0μL.L-1浓度的1-甲基环丙烯(1-MCP)处理和未经1-MCP处理的离体菠菜叶片的衰老特性进行研究。结果表明,与对照相比,经1-MCP处理的菠菜叶片在避光、23℃条件下贮藏6 d后,叶绿素含量和光系统Ⅱ最高光量子产量较高,溶质渗... 详细信息

分别对经0.1、1.0μL.L-1浓度的1-甲基环丙烯(1-MCP)处理和未经1-MCP处理的离体菠菜叶片的衰老特性进行研究。结果表明,与对照相比,经1-MCP处理的菠菜叶片在避光、23℃条件下贮藏6 d后,叶绿素含量和光系统Ⅱ最高光量子产量较高,溶质渗漏量较低,说明1-MCP处理可延缓菠菜叶片的衰老。贮藏3 d后,经1-MCP处理的菠菜叶片乙烯生成量增加,随后又下降至对照水平。经1-MCP处理的菠菜叶片中具有较高的抗坏血酸和谷胱甘肽含量及对于这两种物质较低的氧化还原比率。1-MCP处理还可以减少菠菜叶片中的铵盐积累及蛋白质的降解。综合上述结果可以得出,通过1-MCP抑制菠菜叶片对乙烯作用的敏感性可有效延长菠菜的采后保鲜期。

关键词： 1-甲基环丙烯铵盐抗坏血酸乙烯谷胱甘肽溶质渗漏衰老菠菜