Hayat Akroud, M. El-Bouhssini, R. Bouharroud, S. Udupa, F. Henkrar, M. Boujghagh, T. Koussa, M. Sbaghi
Genetic diversity and relationship among a set of 18 cactus pear genotypes, with different degrees of resistance to cochineal scale insect (Dactylopius opuntiae), was estimated using eight simple sequence repeat (SSR) markers. The genotypes used belong to four Opuntia species (O. engelmanii, O. ficus indica, O. robusta, and o. dillenii). The analysis revealed a total number of 56 alleles (Mean = 7) and an average genetic diversity index of 0.76 with genetic distances ranging from 0.00 to 1.00 at eight microsatellite loci in 18 Moroccan cactus pear genotypes. All microsatellites used were found to be highly informative, with mean polymorphic information content (PIC) estimated at 0.72. Genetic relationship estimated using the neighbor-joining (NJ) method and the principal coordinate analysis (PCoA), showed that the 18 genotypes were successfully assigned to four clusters, separated according to their taxonomy distribution and their levels of resistance to D. opuntiae. The results of this study demonstrated that the Moroccan cactus pear genotypes evaluated are highly divergent and that these genotypes will be useful for future crossing programs to improve the genetic diversity in Opuntia for resistance to D. opuntiae.
利用8个SSR标记,对18个对胭脂虫(Dactylopius opuntiae)具有不同抗性的仙人掌梨基因型的遗传多样性和亲缘关系进行了分析。所使用的基因型属于4个机会种(O. engelmanii, O. ficus indica, O. robusta和O. dillenii)。结果表明,18个摩洛哥仙人掌梨基因型的8个微卫星位点共有56个等位基因(平均7个),平均遗传多样性指数为0.76,遗传距离在0.00 ~ 1.00之间。所有使用的微卫星都具有很高的信息量,平均多态信息含量(PIC)估计为0.72。利用邻联法(NJ)和主坐标分析(PCoA)对18个基因型的亲缘关系进行了分析,结果表明,这18个基因型被划分为4个聚类,并根据它们的分类分布和对机会姬蚊的抗性水平进行了分离。本研究结果表明,所评价的摩洛哥仙人掌梨基因型具有高度的差异性,这些基因型将为今后的杂交计划提供依据,以提高摩洛哥仙人掌对仙人掌病抗性的遗传多样性。
{"title":"Genetic relations among Moroccan Opuntia genotypes with different degrees of resistance to Dactylopius opuntiae","authors":"Hayat Akroud, M. El-Bouhssini, R. Bouharroud, S. Udupa, F. Henkrar, M. Boujghagh, T. Koussa, M. Sbaghi","doi":"10.56890/jpacd.v24i.480","DOIUrl":"https://doi.org/10.56890/jpacd.v24i.480","url":null,"abstract":"Genetic diversity and relationship among a set of 18 cactus pear genotypes, with different degrees of resistance to cochineal scale insect (Dactylopius opuntiae), was estimated using eight simple sequence repeat (SSR) markers. The genotypes used belong to four Opuntia species (O. engelmanii, O. ficus indica, O. robusta, and o. dillenii). The analysis revealed a total number of 56 alleles (Mean = 7) and an average genetic diversity index of 0.76 with genetic distances ranging from 0.00 to 1.00 at eight microsatellite loci in 18 Moroccan cactus pear genotypes. All microsatellites used were found to be highly informative, with mean polymorphic information content (PIC) estimated at 0.72. Genetic relationship estimated using the neighbor-joining (NJ) method and the principal coordinate analysis (PCoA), showed that the 18 genotypes were successfully assigned to four clusters, separated according to their taxonomy distribution and their levels of resistance to D. opuntiae. The results of this study demonstrated that the Moroccan cactus pear genotypes evaluated are highly divergent and that these genotypes will be useful for future crossing programs to improve the genetic diversity in Opuntia for resistance to D. opuntiae.\u0000 ","PeriodicalId":54361,"journal":{"name":"Journal of the Professional Association for Cactus Development","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46864210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aurelio Pedroza Sandoval, Nidia Susana Sifuentes Rodríguez, Ricardo Trejo Calzada, J. Zegbe-Domínguez, Rafael Minjares-Fuentes, J. A. Samaniego-Gaxiola
The derivatives of aloe plant leave [Aloe vera (L.) Burm. f.], such as gel, juice, and powder, are highly appreciated in the industrial sector. This study evaluated the effect of different soil moisture contents on the growth, production, and gel quality of aloe grown in an arid region of Mexico. The study was conducted in a randomized complete block design with three replicates. Base on the percentage of field capacity (FC), three irrigation treatments were tested: 42%, 72%, and 100% of FC corresponding, on average (± standard deviation), to 0.12 ± 0.02 m3 m-3 (as control), 0.18 ± 0.02 m3 m-3, and 0.24 ± 0.02 m3 m-3 of soil water content, respectively. Aloe plants watered with 72% of FC had greater plant height and leaf width than plants watered at 42% of field capacity, while plants with 100% of FC treatment had the longest (56.1 cm) and thickest (1.5 cm) leaves. Aloe plants irrigated at either 72% or 100% of field capacity produced the freshest leaf biomass and gel. In contrast, plants grown at 42% of field capacity treatments had the highest pH (4.94), total soluble solids (1.77 °Brix), ash content (0.62%), methanol-precipitated solids (1.24%), and total solids (1.88%) of aloe gel. Even though the lowest soil moisture content (42% of field capacity) reduced plant and leaf growth and leaf and gel yields, gel quality was enhanced, meeting the gel quality standards demanded by the international market.
{"title":"Leaf production and gel quality of Aloe vera (L.) Burm. F. under irrigation regimens in northern Mexico","authors":"Aurelio Pedroza Sandoval, Nidia Susana Sifuentes Rodríguez, Ricardo Trejo Calzada, J. Zegbe-Domínguez, Rafael Minjares-Fuentes, J. A. Samaniego-Gaxiola","doi":"10.56890/jpacd.v24i.497","DOIUrl":"https://doi.org/10.56890/jpacd.v24i.497","url":null,"abstract":"The derivatives of aloe plant leave [Aloe vera (L.) Burm. f.], such as gel, juice, and powder, are highly appreciated in the industrial sector. This study evaluated the effect of different soil moisture contents on the growth, production, and gel quality of aloe grown in an arid region of Mexico. The study was conducted in a randomized complete block design with three replicates. Base on the percentage of field capacity (FC), three irrigation treatments were tested: 42%, 72%, and 100% of FC corresponding, on average (± standard deviation), to 0.12 ± 0.02 m3 m-3 (as control), 0.18 ± 0.02 m3 m-3, and 0.24 ± 0.02 m3 m-3 of soil water content, respectively. Aloe plants watered with 72% of FC had greater plant height and leaf width than plants watered at 42% of field capacity, while plants with 100% of FC treatment had the longest (56.1 cm) and thickest (1.5 cm) leaves. Aloe plants irrigated at either 72% or 100% of field capacity produced the freshest leaf biomass and gel. In contrast, plants grown at 42% of field capacity treatments had the highest pH (4.94), total soluble solids (1.77 °Brix), ash content (0.62%), methanol-precipitated solids (1.24%), and total solids (1.88%) of aloe gel. Even though the lowest soil moisture content (42% of field capacity) reduced plant and leaf growth and leaf and gel yields, gel quality was enhanced, meeting the gel quality standards demanded by the international market.","PeriodicalId":54361,"journal":{"name":"Journal of the Professional Association for Cactus Development","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47495557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dactylopius opuntiae Cockerell (Hemiptera: Dactylopiidae) is a worldwide successful biological control agent for some invasive Opuntia Mill. (Caryophyllales: Cactaceae) species, and a primary pest where this species is commercially cultivated, which has renewed its scientific interest. Therefore, this research characterized regularities of the scientific production and identified emerging research trends on D. opuntiae, using one-dimensional and multidimensional bibliometric indicators. The search and retrieve of metadata from nine scientific publications databases (Biological Abstracts, Cab abstracts, Crossref, Google Academic, Dimensions, Microsoft Academic Search, Science Citation Index Expanded, Scopus, and Zoological Record) was condensed into a 193 documents collection, spanning from 1848 to 2021 using the Zotero® bibliographic reference manager. Publish or Perish® and Excel® were used to generate one-dimensional indicators and VOSviewer® for multi-dimensional indicators. Eighty percent of the publications on D. opuntiae were registered in the last 20 years, which denotes the specie´s recently acquired importance. The addressed topics in the two assessed periods showed drastic changes, since, while in the first period (1848-2000) these were directed, particularly, to its applications as a biological control agent for various Opuntia species; during the next period (2001-2021), they focused on generating strategies for its eradication and control. A high number of non-peer-reviewed publications were not included in our studies, such as serials, books, theses, and conference proceedings. Despite the recent interest in D. opuntiae and the growing number of scientific documents, no previous publications were found that address this issue. Finally, the research allowed for the identification of emerging research trends and showed their locations and who makes up the clusters or research groups, and the addressed topics, which could facilitate collaboration networks establishment and contribute to the scientific development of D. opuntiae.
{"title":"Dactylopius opuntiae Cockerell (Hemiptera: Dactylopiidae), an emerging global threat for Opuntia spp: a bibliometric analysis","authors":"S. J. Méndez-Gallegos, Ángel Bravo-Vinaja","doi":"10.56890/jpacd.v24i.487","DOIUrl":"https://doi.org/10.56890/jpacd.v24i.487","url":null,"abstract":"Dactylopius opuntiae Cockerell (Hemiptera: Dactylopiidae) is a worldwide successful biological control agent for some invasive Opuntia Mill. (Caryophyllales: Cactaceae) species, and a primary pest where this species is commercially cultivated, which has renewed its scientific interest. Therefore, this research characterized regularities of the scientific production and identified emerging research trends on D. opuntiae, using one-dimensional and multidimensional bibliometric indicators. The search and retrieve of metadata from nine scientific publications databases (Biological Abstracts, Cab abstracts, Crossref, Google Academic, Dimensions, Microsoft Academic Search, Science Citation Index Expanded, Scopus, and Zoological Record) was condensed into a 193 documents collection, spanning from 1848 to 2021 using the Zotero® bibliographic reference manager. Publish or Perish® and Excel® were used to generate one-dimensional indicators and VOSviewer® for multi-dimensional indicators. Eighty percent of the publications on D. opuntiae were registered in the last 20 years, which denotes the specie´s recently acquired importance. The addressed topics in the two assessed periods showed drastic changes, since, while in the first period (1848-2000) these were directed, particularly, to its applications as a biological control agent for various Opuntia species; during the next period (2001-2021), they focused on generating strategies for its eradication and control. A high number of non-peer-reviewed publications were not included in our studies, such as serials, books, theses, and conference proceedings. Despite the recent interest in D. opuntiae and the growing number of scientific documents, no previous publications were found that address this issue. Finally, the research allowed for the identification of emerging research trends and showed their locations and who makes up the clusters or research groups, and the addressed topics, which could facilitate collaboration networks establishment and contribute to the scientific development of D. opuntiae.","PeriodicalId":54361,"journal":{"name":"Journal of the Professional Association for Cactus Development","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43361987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-22DOI: 10.24818/cts/4/2022/1.08
Oana Crismariu, M. Tănase, Iulian-Petru Tenie, A. Abdallah
The pandemic situation that began in 2019 directly affected all industries. The most affected industries are: airlines, cruises, HORECA, entertainment, etc. The restaurant industry, which is part of the HORECA industry, was severely affected throughout the world. The industry faced many restrictions in 2020 and 2021. Among most common, we can mention: temporary suspension of the activity, limited operating hours and available seats, access restrictions (like EU Green Certificate, for indoor activities), etc. As a response to legal regulations in order to avoid the spread of the virus, but also to prevent a further economic downturn, each industry had to take various measures. This article contains a theoretical overview of the evolution of the restaurant industry during the pandemic, from March 2020 to the present day. An analysis, based on qualitative research, of representative restaurants, in their category, for Romania shows how different actions were taken to adapt to the new normal. Furthermore, the research presents an important view of the future of the industry. The purpose of this paper is to analyze the changes produced and the adaptability of the restaurant industry to the current and ever-changing situation. The results revealed many interesting measures that similar companies and hope for better times.
{"title":"THE RESPONSE OF THE ROMANIAN HOSPITALITY\u0000INDUSTRY TO THE COVID-19 PANDEMIC.\u0000FOCUS ON THE RESTAURANT INDUSTRY","authors":"Oana Crismariu, M. Tănase, Iulian-Petru Tenie, A. Abdallah","doi":"10.24818/cts/4/2022/1.08","DOIUrl":"https://doi.org/10.24818/cts/4/2022/1.08","url":null,"abstract":"The pandemic situation that began in 2019 directly affected all industries. The most affected industries are:\u0000airlines, cruises, HORECA, entertainment, etc. The restaurant industry, which is part of the HORECA industry,\u0000was severely affected throughout the world. The industry faced many restrictions in 2020 and 2021. Among most\u0000common, we can mention: temporary suspension of the activity, limited operating hours and available seats, access\u0000restrictions (like EU Green Certificate, for indoor activities), etc. As a response to legal regulations in order to\u0000avoid the spread of the virus, but also to prevent a further economic downturn, each industry had to take various\u0000measures.\u0000This article contains a theoretical overview of the evolution of the restaurant industry during the pandemic, from\u0000March 2020 to the present day. An analysis, based on qualitative research, of representative restaurants, in their\u0000category, for Romania shows how different actions were taken to adapt to the new normal. Furthermore, the\u0000research presents an important view of the future of the industry. The purpose of this paper is to analyze the\u0000changes produced and the adaptability of the restaurant industry to the current and ever-changing situation. The\u0000results revealed many interesting measures that similar companies and hope for better times.","PeriodicalId":54361,"journal":{"name":"Journal of the Professional Association for Cactus Development","volume":"271 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78438061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}