GM Crops & Food最新文献_第3页

Comparison of genetically modified insect-resistant maize and non-transgenic maize revealed changes in soil metabolomes but not in rhizosphere bacterial community. 转基因抗虫玉米与非转基因玉米相比，土壤代谢组发生了变化，但根际细菌群落没有变化。

IF 3.9

GM Crops & Food Pub Date : 2022-12-31 Epub Date: 2022-02-18 DOI: 10.1080/21645698.2022.2025725

Yanjun Chen, Libo Pan, Mengyun Ren, Junsheng Li, Xiao Guan, Jun Tao

{"title":"Comparison of genetically modified insect-resistant maize and non-transgenic maize revealed changes in soil metabolomes but not in rhizosphere bacterial community.","authors":"Yanjun Chen, Libo Pan, Mengyun Ren, Junsheng Li, Xiao Guan, Jun Tao","doi":"10.1080/21645698.2022.2025725","DOIUrl":"https://doi.org/10.1080/21645698.2022.2025725","url":null,"abstract":"The deliberate introduction of the beneficial gene in crop plants through transgenic technology can provide enormous agricultural and economic benefits. However, the impact of commercialization of these crops on the ecosystem particularly on belowground soil biodiversity is still uncertain. Here, we examined and compared the effects of a non-transgenic maize cultivar and an insect-resistant transgenic maize cultivar genetically engineered with cry1Ah gene from Bacillus thuringiensis, on the rhizosphere bacterial community using 16S rDNA amplicon sequencing and soil metabolome profile using UPLC/MS analysis at six different growth stages. We found no significant differences in bacterial community composition and diversity at all growth stages between the two cultivars. The analysis of bacterial beta-diversity showed an evident difference in community structure attributed to plant different growth stages but not to the plant type. In contrast, the soil metabolic profile of transgenic maize differed from that of the non-transgenic plant at some growth stages, and most of the altered metabolites were usually related to the metabolism but not to the plant-microbe interaction related pathways. These results suggest that genetic modification with the cry1Ah gene-altered maize soil metabolism but had no obvious effect on the rhizosphere bacterial community.","PeriodicalId":501763,"journal":{"name":"GM Crops & Food","volume":" ","pages":"1-14"},"PeriodicalIF":3.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8890387/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39644186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Individual and combined effects of land use and weeds on Cry1Ab/c protein expression and yield of transgenic cry1Ab/c rice. 土地利用和杂草对Cry1Ab/c转基因水稻Cry1Ab/c蛋白表达和产量的单独和联合影响

IF 3.9

GM Crops & Food Pub Date : 2022-12-31 DOI: 10.1080/21645698.2022.2107385

Jianmei Fu, Biao Liu

{"title":"Individual and combined effects of land use and weeds on Cry1Ab/c protein expression and yield of transgenic cry1Ab/c rice.","authors":"Jianmei Fu, Biao Liu","doi":"10.1080/21645698.2022.2107385","DOIUrl":"https://doi.org/10.1080/21645698.2022.2107385","url":null,"abstract":"Considering the anticipated commercial exploitation of insect-resistant transgenic rice and that the planting area of cultivated rice overlaps with wild rice, simulating an escape of transgenic rice from farmlands and exploring its fitness after entering semi-natural or natural ecosystems through uncontrolled seed dispersal or gene flow are critical to understand the resulting potential long-term environmental risks. The expression of foreign Cry1Ab/c protein and vegetative and reproductive fitness of insect-resistant transgenic rice Huahui1 (HH1) and its parental-line Minghui63 (MH63) were studied under four treatments combining land use and weed competition: farmland and uncultivated land under weed control (F-NW and U-NW, respectively), and farmland and uncultivated land without weed control (F-W and U-W, respectively). The expression of Cry1Ab/c was significantly lower in U-NW, F-W, and U-W than that in the control treatment, F-NW. Except for plant height, key vegetative (tiller number and biomass) and reproductive (grain number and grain weight per plant) growth indices of transgenic HH1 were significantly lower than those of the parental-line MH63 in F-NW and U-NW, indicating a significant fitness cost. In F-W and U-W, vegetative growth indices (plant height, tiller number, and biomass) were similar in HH1 and MH63; however, key reproductive indices including seed-set rate were significantly higher in HH1 than in MH63, indicating significant fitness benefits. Although these results support large-scale cultivation of insect-resistant transgenic rice in China, the ecological risk involved is high in farmland or uncultivated land without weed control (F-W and U-W).","PeriodicalId":501763,"journal":{"name":"GM Crops & Food","volume":" ","pages":"156-170"},"PeriodicalIF":3.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9367653/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40707013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Melatonin-mediated temperature stress tolerance in plants. 褪黑激素介导的植物温度胁迫耐受性。

IF 3.9

GM Crops & Food Pub Date : 2022-12-31 DOI: 10.1080/21645698.2022.2106111

Ali Raza, Sidra Charagh, Pedro García-Caparrós, Md Atikur Rahman, Vincent H Ogwugwa, Faisal Saeed, Wanmei Jin

{"title":"Melatonin-mediated temperature stress tolerance in plants.","authors":"Ali Raza, Sidra Charagh, Pedro García-Caparrós, Md Atikur Rahman, Vincent H Ogwugwa, Faisal Saeed, Wanmei Jin","doi":"10.1080/21645698.2022.2106111","DOIUrl":"https://doi.org/10.1080/21645698.2022.2106111","url":null,"abstract":"Global climate changes cause extreme temperatures and a significant reduction in crop production, leading to food insecurity worldwide. Temperature extremes (including both heat and cold stresses) is one of the most limiting factors in plant growth and development and severely affect plant physiology, biochemical, and molecular processes. Biostimulants like melatonin (MET) have a multifunctional role that acts as a \"defense molecule\" to safeguard plants against the noxious effects of temperature stress. MET treatment improves plant growth and temperature tolerance by improving several defense mechanisms. Current research also suggests that MET interacts with other molecules, like phytohormones and gaseous molecules, which greatly supports plant adaptation to temperature stress. Genetic engineering via overexpression or CRISPR/Cas system of MET biosynthetic genes uplifts the MET levels in transgenic plants and enhances temperature stress tolerance. This review highlights the critical role of MET in plant production and tolerance against temperature stress. We have documented how MET interacts with other molecules to alleviate temperature stress. MET-mediated molecular breeding would be great potential in helping the adverse effects of temperature stress by creating transgenic plants.","PeriodicalId":501763,"journal":{"name":"GM Crops & Food","volume":" ","pages":"196-217"},"PeriodicalIF":3.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9397135/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40624782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 51

Genetically modified (GM) late blight-resistant potato and consumer attitudes before and after a field visit. 转基因(GM)抗晚疫病马铃薯和消费者的态度前后实地考察。

IF 3.9

GM Crops & Food Pub Date : 2022-12-31 DOI: 10.1080/21645698.2022.2133396

Jéssica Bubolz, Patrycja Sleboda, Anna Lehrman, Sven-Ove Hansson, Carl Johan Lagerkvist, Björn Andersson, Marit Lenman, Svante Resjö, Marc Ghislain, Muhammad Awais Zahid, Nam Phuong Kieu, Erik Andreasson

引用次数: 1

Slow alignment of GMO allergenicity regulations with science on protein digestibility. 转基因生物致敏性调节与蛋白质消化率科学的缓慢一致性。

IF 3.9

GM Crops & Food Pub Date : 2022-12-31 DOI: 10.1080/21645698.2022.2093552

Rod A Herman, John X Q Zhang, Jason M Roper

{"title":"Slow alignment of GMO allergenicity regulations with science on protein digestibility.","authors":"Rod A Herman, John X Q Zhang, Jason M Roper","doi":"10.1080/21645698.2022.2093552","DOIUrl":"https://doi.org/10.1080/21645698.2022.2093552","url":null,"abstract":"The current science on food allergy supports the dual allergen exposure hypothesis where sensitization to allergenic proteins is favored by dermal and inhalation exposure, and tolerization against allergy is favored by exposure in the gut. This hypothesis is bolstered by the epidemiological evidence showing that regions where children are exposed early in life to allergenic foods have lower rates of allergy. This led medical experts to replace the previous recommendation to exclude commonly allergenic foods from the diets of young children with the current recommendation that such foods be introduced to children early in life. Past beliefs that lowering gut exposure would reduce the likelihood that a protein would be allergenic led regulators and risk assessors to consider digestively stable proteins to be of greater allergenic risk. This resulted in international guidance and government regulations for newly expressed proteins in genetically engineered crops that aligned with this belief. Despite empirical results showing that allergens are no more digestively stable than non-allergens, and that gut exposure favors tolerization over sensitization, regulations have not come into alignment with the current science prompting developers to continue to engineer proteins for increased digestibility. In some rare cases, this could potentially increase sensitization risk.","PeriodicalId":501763,"journal":{"name":"GM Crops & Food","volume":" ","pages":"126-130"},"PeriodicalIF":3.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/91/f0/KGMC_13_2093552.PMC9245576.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40405695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Genetically Modified (GM) Crop Use 1996-2020: Environmental Impacts Associated with Pesticide Use CHANGE. 1996-2020年转基因作物使用:与农药使用变化相关的环境影响

IF 3.9

GM Crops & Food Pub Date : 2022-12-31 DOI: 10.1080/21645698.2022.2118497

Graham Brookes

{"title":"Genetically Modified (GM) Crop Use 1996-2020: Environmental Impacts Associated with Pesticide Use CHANGE.","authors":"Graham Brookes","doi":"10.1080/21645698.2022.2118497","DOIUrl":"https://doi.org/10.1080/21645698.2022.2118497","url":null,"abstract":"This paper assesses the environmental impacts associated with changes in pesticide use with GM crops at a global level. The main technologies impacting on pesticide use have been crops modified to be tolerant to specific herbicides so as to facilitate improved weed control and crops resistant to a range of crop insect pests that otherwise damage crops or typically require the application of insecticides to control them. Over the 24 year period examined to 2020, the widespread use of GM insect resistant and herbicide tolerant seed technology has reduced pesticide application by 748.6 million kg (-7.2%) of active ingredient and, as a result, decreased the environmental impact associated with insecticide and herbicide use on these crops (as measured by the indicator, the Environmental Impact Quotient (EIQ)) by a larger 17.3% between 1996 and 2020. The technology that has delivered the largest change in pesticide use has been insect resistant cotton, where a 339 million kg of active ingredient saving has occurred and the associated environmental impact (as measured by the EIQ indicator) has fallen by about a third.","PeriodicalId":501763,"journal":{"name":"GM Crops & Food","volume":" ","pages":"262-289"},"PeriodicalIF":3.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9578716/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33504481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Ex-ante impact assessment of GM maize adoption in El Salvador. 萨尔瓦多采用转基因玉米的事前影响评估。

IF 3.9

GM Crops & Food Pub Date : 2020-04-02 Epub Date: 2019-12-22 DOI: 10.1080/21645698.2019.1706424

Diego Maximiliano Macall, Stuart J Smyth

引用次数: 3

Allergen false-detection using official bioinformatic algorithms. 使用官方生物信息学算法检测过敏原。

IF 3.9

GM Crops & Food Pub Date : 2020-04-02 Epub Date: 2020-01-06 DOI: 10.1080/21645698.2019.1709021

Rod A Herman, Ping Song

引用次数: 5

Sequence and functional analysis of a TERMINAL FLOWER 1 homolog from Brassica juncea: a putative biotechnological tool for flowering time adjustment. 芥菜末端花1同源物的序列和功能分析:一个可能的开花时间调节生物技术工具。

IF 3.9

GM Crops & Food Pub Date : 2020-04-02 Epub Date: 2019-12-26 DOI: 10.1080/21645698.2019.1707340

Mohsen Asadi Khanouki, Farkhondeh Rezanejad, Anthony A Millar

{"title":"Sequence and functional analysis of a TERMINAL FLOWER 1 homolog from Brassica juncea: a putative biotechnological tool for flowering time adjustment.","authors":"Mohsen Asadi Khanouki, Farkhondeh Rezanejad, Anthony A Millar","doi":"10.1080/21645698.2019.1707340","DOIUrl":"https://doi.org/10.1080/21645698.2019.1707340","url":null,"abstract":"Flowering time is an important agricultural trait of the oil crop Brassica juncea (B. juncea), as accelerated flowering enables avoidance of terminal drought leading to increased yields. One gene known to control flowering time is TERMINAL FLOWER 1 (TFL1), which belongs to a family of phosphatidylethanolamine binding proteins, which can either repress or promote flowering time. Here, a TFL1 homolog, named BjTFL1, has been isolated from B. juncea, which shared 95% amino acid identity with TFL1 from Arabidopsis thaliana. Sequence analysis predicts the BjTFL1 protein contains the ligand-binding site, conserved motifs and other amino acid residues that are critical for TFL1 function. Confirming this as a functional TFL1 orthologue, overexpression of BjTFL1 under the control of the constitutive 35S promoter in Arabidopsis delayed flowering time. As a proof-of-concept to investigate its utility to shorten flowering time, an RNAi construct containing a partial sequence of BjTFL1 was transformed into Arabidopsis. Transcript analysis demonstrated the downregulation of endogenous AtTFL1. Moreover, the RNAi BjTFL1 transgenic lines were early flowering and had fewer rosette and cauline leaves compared to wild-type. Therefore, this BjTFL1 RNAi transgene could be used as a biotechnological tool to reduce flowering time in Brassica juncea in a bid to improve agricultural performance.","PeriodicalId":501763,"journal":{"name":"GM Crops & Food","volume":" ","pages":"79-92"},"PeriodicalIF":3.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21645698.2019.1707340","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37490477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A contingent valuation analysis for assessing the market for genetically modified planting materials among banana producing households in Uganda. 用于评估乌干达香蕉生产家庭中转基因种植材料市场的条件价值分析。

IF 3.9

GM Crops & Food Pub Date : 2020-04-02 Epub Date: 2020-02-02 DOI: 10.1080/21645698.2020.1720498

Enoch Mutebi Kikulwe, Marsy Asindu

引用次数: 11