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Zeng Y, Yang X, Xia Z, Chen R, He F, Zhang J, He P. Review of Allelopathy in Green Tides: The Case of Ulva prolifera in the South Yellow Sea. BIOLOGY 2024; 13:456. [PMID: 38927336 PMCID: PMC11201074 DOI: 10.3390/biology13060456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/16/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024]
Abstract
The proliferation of large green macroalgae in marine environments has led to the occurrence of green tides, particularly in the South Yellow Sea region of China, where Ulva prolifera has been identified as the primary species responsible for the world's largest green tide events. Allelopathy among plants is a critical factor influencing the dynamics of green tides. This review synthesizes previous research on allelopathic interactions within green tides, categorizing four extensively studied allelochemicals: fatty acids, aldehydes, phenols, and terpenes. The mechanisms by which these compounds regulate the physiological processes of green tide algae are examined in depth. Additionally, recent advancements in the rapid detection of allelochemicals are summarized, and their potential applications in monitoring green tide events are discussed. The integration of advanced monitoring technologies, such as satellite observation and environmental DNA (eDNA) analysis, with allelopathic substance detection is also explored. This combined approach addresses gaps in understanding the dynamic processes of green tide formation and provides a more comprehensive insight into the mechanisms driving these phenomena. The findings and new perspectives presented in this review aim to offer valuable insights and inspiration for researchers and policymakers.
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Affiliation(s)
- Yinqing Zeng
- College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China; (Y.Z.); (X.Y.); (Z.X.); (R.C.); (F.H.)
| | - Xinlan Yang
- College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China; (Y.Z.); (X.Y.); (Z.X.); (R.C.); (F.H.)
| | - Zhangyi Xia
- College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China; (Y.Z.); (X.Y.); (Z.X.); (R.C.); (F.H.)
| | - Runze Chen
- College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China; (Y.Z.); (X.Y.); (Z.X.); (R.C.); (F.H.)
| | - Faqing He
- College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China; (Y.Z.); (X.Y.); (Z.X.); (R.C.); (F.H.)
| | - Jianheng Zhang
- College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China; (Y.Z.); (X.Y.); (Z.X.); (R.C.); (F.H.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
| | - Peimin He
- College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai 201306, China; (Y.Z.); (X.Y.); (Z.X.); (R.C.); (F.H.)
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
- Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
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Generalić Mekinić I, Šimat V, Rathod NB, Hamed I, Čagalj M. Algal Carotenoids: Chemistry, Sources, and Application. Foods 2023; 12:2768. [PMID: 37509860 PMCID: PMC10379930 DOI: 10.3390/foods12142768] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Recently, the isolation and identification of various biologically active secondary metabolites from algae have been of scientific interest, with particular attention paid to carotenoids, widely distributed in various photosynthetic organisms, including algal species. Carotenoids are among the most important natural pigments, with many health-promoting effects. Since the number of scientific studies on the presence and profile of carotenoids in algae has increased exponentially along with the interest in their potential commercial applications, this review aimed to provide an overview of the current knowledge (from 2015) on carotenoids detected in different algal species (12 microalgae, 21 green algae, 26 brown algae, and 43 red algae) to facilitate the comparison of the results of different studies. In addition to the presence, content, and identification of total and individual carotenoids in various algae, the method of their extraction and the main extraction parameters were also highlighted.
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Affiliation(s)
- Ivana Generalić Mekinić
- Department of Food Technology and Biotechnology, Faculty of Chemistry and Technology, University of Split, R. Boškovića 35, HR-21000 Split, Croatia
| | - Vida Šimat
- University Department of Marine Studies, University of Split, R. Boškovića 37, HR-21000 Split, Croatia
| | - Nikheel Bhojraj Rathod
- Department of Post Harvest Management of Meat, Poultry and Fish, PG Institute of Post Harvest Technology & Management (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli), District Raigad, Killa-Roha 402 116, Maharashtra State, India
| | - Imen Hamed
- Department of Biotechnology and Food Science, NTNU-Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Martina Čagalj
- University Department of Marine Studies, University of Split, R. Boškovića 37, HR-21000 Split, Croatia
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Molecular Response of Ulva prolifera to Short-Term High Light Stress Revealed by a Multi-Omics Approach. BIOLOGY 2022; 11:biology11111563. [PMID: 36358264 PMCID: PMC9687821 DOI: 10.3390/biology11111563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/16/2022] [Accepted: 10/19/2022] [Indexed: 12/02/2022]
Abstract
The main algal species of Ulva prolifera green tide in the coastal areas of China are four species, but after reaching the coast of Qingdao, U. prolifera becomes the dominant species, where the light intensity is one of the most important influencing factors. In order to explore the effects of short-term high light stress on the internal molecular level of cells and its coping mechanism, the transcriptome, proteome, metabolome, and lipid data of U. prolifera were collected. The algae were cultivated in high light environment conditions (400 μmol·m−2·s−1) for 12 h and measured, and the data with greater relative difference (p < 0.05) were selected, then analyzed with the KEGG pathway. The results showed that the high light stress inhibited the assimilation of U. prolifera, destroyed the cell structure, and arrested its growth and development. Cells entered the emergency defense state, the TCA cycle was weakened, and the energy consumption processes such as DNA activation, RNA transcription, protein synthesis and degradation, and lipid alienation were inhibited. A gradual increase in the proportion of the C4 pathway was recorded. This study showed that U. prolifera can reduce the reactive oxygen species produced by high light stress, inhibit respiration, and reduce the generation of NADPH. At the same time, the C3 pathway began to change to the C4 pathway which consumed more energy. Moreover, this research provides the basis for the study of algae coping with high light stress.
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Pozzer AC, Gómez PA, Weiss J. Volatile organic compounds in aquatic ecosystems - Detection, origin, significance and applications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156155. [PMID: 35609693 DOI: 10.1016/j.scitotenv.2022.156155] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 05/06/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Volatile organic compounds (VOCs) include a broad range of compounds. Their production influences a large number of processes, having direct and secondary effects on different fields, such as climate change, economy and ecology. Although our planet is primarily covered with water (~70% of the globe surface), the information on aquatic VOCs, compared to the data available for the terrestrial environments, is still limited. Regardless of the difficulty in collecting and analysing data, because of their extreme complexity, diversification and important spatial-temporal emission variation, it was demonstrated that aquatic organisms are able to produce a variety of bioactive compounds. This production happens in response to abiotic and biotic stresses, evidencing the fundamental role of these metabolites, both in terms of composition and amount, in providing important ecological information and possible non-invasive tools to monitor different biological systems. The study of these compounds is an important and productive task with possible and interesting impacts in future practical applications in different fields. This review aims to summarize the knowledge on the aquatic VOCs, the recent advances in understanding their diverse roles and ecological impacts, the generally used methodology for their sampling and analysis, and their enormous potential as non-invasive, non-destructive and financeable affordable real-time biomonitoring tool, both in natural habitats and in controlled industrial situations. Finally, the possible future technical applications, highlighting their economic and social potential, such as the possibility to use VOCs as valuable alternative source of chemicals and as biocontrol and bioregulation agents, are emphasized.
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Affiliation(s)
- Anna Caterina Pozzer
- Institute of Plant Biotechnology, Universidad Politécnica de Cartagena, Campus Muralla del Mar. 30202, Cartagena, Murcia, Spain
| | - Perla A Gómez
- Institute of Plant Biotechnology, Universidad Politécnica de Cartagena, Campus Muralla del Mar. 30202, Cartagena, Murcia, Spain
| | - Julia Weiss
- Molecular Genetics, Institute of Plant Biotechnology, Universidad Politécnica de Cartagena, Campus Muralla del Mar. 30202, Cartagena, Murcia, Spain.
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He Y, Li M, Wang Y, Shen S. The R2R3-MYB transcription factor MYB44 modulates carotenoid biosynthesis in Ulva prolifera. ALGAL RES 2022. [DOI: 10.1016/j.algal.2021.102578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Wang W, Sheng Y, Jiang M. Physiological and metabolic responses of Microcystis aeruginosa to a salinity gradient. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:13226-13237. [PMID: 34585353 DOI: 10.1007/s11356-021-16590-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
Microcystis is a well-known toxic cyanobacterium in eutrophic environments, and an increasing number of Microcystis blooms have emerged in salty reservoirs and coastal rivers. This study observed that many Microcystis were identified in a coastal river in June 2020. The relative abundance of Microcystis decreased from 81.2 to 10.2% in the sampling sites from a salinity of 0 (Sal. 0) to a salinity of 12 (Sal. 12). Hepatotoxic microcystins (MCs) were identified in the coastal river and its estuary. Of the samples, those with a salinity of 5 (Sal. 5) had the highest concentration of MCs at 7.81 ± 0.67 μg L-1. In a saline water simulation experiment, the results showed that salt inhibited Microcystis (M.) aeruginosa growth, enhanced the activity levels of superoxide dismutase (SOD) and catalase (CAT) and stimulated microcystin production. Transcription analysis showed that the expression levels of the psaB and rbcL genes controlling photosymbiotic processes were downregulated, and capD and csaBgene-related polysaccharide productions were upregulated by salt incubation. Notably, metabolism analysis showed that the total polysaccharides, proteins and small molecular matter, such as sucrose, methionine and N-acetyl-D-glucosamine, in the Microcystis cells increased substantially to resist the extracellular hyperosmotic pressure caused by the high salinity levels in culture. These findings indicate that increased salt in a natural aquatic body shifts the phytoplankton community by influencing the physiological metabolism of cyanobacteria and poses a high risk of microcystin exposure during cyanobacterial blooms in coastal rivers.
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Affiliation(s)
- Wenjing Wang
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 7 Chunhui Road, Yantai, 264003, People's Republic of China
| | - Yanqing Sheng
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 7 Chunhui Road, Yantai, 264003, People's Republic of China.
| | - Ming Jiang
- Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 7 Chunhui Road, Yantai, 264003, People's Republic of China
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Xiao Y, Liu S, Zhang M, Tong F, Xu Z, Ford R, Zhang T, Shi X, Wu Z, Luo T. Plant Functional Groups Dominate Responses of Plant Adaptive Strategies to Urbanization. FRONTIERS IN PLANT SCIENCE 2021; 12:773676. [PMID: 34917107 PMCID: PMC8669269 DOI: 10.3389/fpls.2021.773676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/20/2021] [Indexed: 06/14/2023]
Abstract
Urbanization causes alteration in atmospheric, soil, and hydrological factors and substantially affects a range of morphological and physiological plant traits. Correspondingly, plants might adopt different strategies to adapt to urbanization promotion or pressure. Understanding of plant traits responding to urbanization will reveal the capacity of plant adaptation and optimize the choice of plant species in urbanization green. In this study, four different functional groups (herbs, shrubs, subcanopies, and canopies, eight plant species totally) located in urban, suburban, and rural areas were selected and eight replicated plants were selected for each species at each site. Their physiological and photosynthetic properties and heavy metal concentrations were quantified to reveal plant adaptive strategies to urbanization. The herb and shrub species had significantly higher starch and soluble sugar contents in urban than in suburban areas. Urbanization decreased the maximum photosynthetic rates and total chlorophyll contents of the canopies (Engelhardtia roxburghiana and Schima superba). The herbs (Lophatherum gracile and Alpinia chinensis) and shrubs (Ardisia quinquegona and Psychotria rubra) species in urban areas had significantly lower nitrogen (N) allocated in the cell wall and leaf δ15N values but higher heavy metal concentrations than those in suburban areas. The canopy and subcanopy (Diospyros morrisiana and Cratoxylum cochinchinense) species adapt to the urbanization via reducing resource acquisition but improving defense capacity, while the herb and shrub species improve resource acquisition to adapt to the urbanization. Our current studies indicated that functional groups affected the responses of plant adaptive strategies to the urbanization.
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Affiliation(s)
- Yihua Xiao
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Shirong Liu
- Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Manyun Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha, China
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Fuchun Tong
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Zhihong Xu
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Rebecca Ford
- Environmental Futures Research Institute, School of Environment and Science, Griffith University, Brisbane, QLD, Australia
| | - Tianlin Zhang
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Xin Shi
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Zhongmin Wu
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Tushou Luo
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
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Abstract
The repeated evolution of multicellularity across the tree of life has profoundly affected the ecology and evolution of nearly all life on Earth. Many of these origins were in different groups of photosynthetic eukaryotes, or algae. Here, we review the evolution and genetics of multicellularity in several groups of green algae, which include the closest relatives of land plants. These include millimeter-scale, motile spheroids of up to 50,000 cells in the volvocine algae; decimeter-scale seaweeds in the genus Ulva (sea lettuce); and very plantlike, meter-scale freshwater algae in the genus Chara (stoneworts). We also describe algae in the genus Caulerpa, which are giant, multinucleate, morphologically complex single cells. In each case, we review the life cycle, phylogeny, and genetics of traits relevant to the evolution of multicellularity, and genetic and genomic resources available for the group in question. Finally, we suggest routes toward developing these groups as model organisms for the evolution of multicellularity. Expected final online publication date for the Annual Review of Genetics, Volume 55 is November 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- James Umen
- Donald Danforth Plant Science Center, St. Louis, Missouri 63132, USA;
| | - Matthew D Herron
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, USA;
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Yang J, Yin Y, Yu D, He L, Shen S. Activation of MAPK signaling in response to nitrogen deficiency in Ulva prolifera (Chlorophyta). ALGAL RES 2021. [DOI: 10.1016/j.algal.2020.102153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Azaman SNA, Wong DCJ, Tan SW, Yusoff FM, Nagao N, Yeap SK. De novo transcriptome analysis of Chlorella sorokiniana: effect of glucose assimilation, and moderate light intensity. Sci Rep 2020; 10:17331. [PMID: 33060668 PMCID: PMC7562877 DOI: 10.1038/s41598-020-74410-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 10/01/2020] [Indexed: 02/01/2023] Open
Abstract
Chlorella can produce an unusually wide range of metabolites under various nutrient availability, carbon source, and light availability. Glucose, an essential molecule for the growth of microorganisms, also contributes significantly to the metabolism of various metabolic compounds produced by Chlorella. In addition, manipulation of light intensity also induces the formation of secondary metabolites such as pigments, and carotenoids in Chlorella. This study will focus on the effect of glucose addition, and moderate light on the regulation of carotenoid, lipid, starch, and other key metabolic pathways in Chlorella sorokiniana. To gain knowledge about this, we performed transcriptome profiling on C. sorokiniana strain NIES-2168 in response to moderate light stress supplemented with glucose under mixotrophic conditions. A total of 60,982,352 raw paired-end (PE) reads 100 bp in length was obtained from both normal, and mixotrophic samples of C. sorokiniana. After pre-processing, 93.63% high-quality PE reads were obtained, and 18,310 predicted full-length transcripts were assembled. Differential gene expression showed that a total of 937, and 1124 genes were upregulated, and downregulated in mixotrophic samples, respectively. Transcriptome analysis revealed that the mixotrophic condition caused upregulation of genes involved in carotenoids production (specifically lutein biosynthesis), fatty acid biosynthesis, TAG accumulation, and the majority of the carbon fixation pathways. Conversely, starch biosynthesis, sucrose biosynthesis, and isoprenoid biosynthesis were downregulated. Novel insights into the pathways that link the enhanced production of valuable metabolites (such as carotenoids in C. sorokiniana) grown under mixotrophic conditions is presented.
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Affiliation(s)
- Siti Nor Ani Azaman
- Centre of Foundation Studies for Agricultural Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Aquatic Animal Health and Therapeutics Laboratory (AquaHealth), Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Darren C J Wong
- Ecology and Evolution, Research School of Biology, The Australian National University, Canberra, ACT, 2600, Australia
| | - Sheau Wei Tan
- Laboratory of Vaccine and Biomolecules (VacBio), Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Fatimah M Yusoff
- International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, Port Dickson, Negeri Sembilan, Malaysia
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Norio Nagao
- Aquatic Animal Health and Therapeutics Laboratory (AquaHealth), Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- , 102 Naname-go, Shinkamigoto-cho, Minami Matsuura-Gun, Nagasaki, 857-4214, Japan
| | - Swee Keong Yeap
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Sepang, Selangor, Malaysia.
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Bioactive compounds and health benefits of Pereskioideae and Cactoideae: A review. Food Chem 2020; 327:126961. [DOI: 10.1016/j.foodchem.2020.126961] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/09/2020] [Accepted: 04/29/2020] [Indexed: 02/08/2023]
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Wang W, Sheng Y. Gene expression concerning fatty acid and amino acid metabolism in Chlorella vulgaris cultured with antibiotics. Appl Microbiol Biotechnol 2020; 104:8025-8036. [PMID: 32794019 DOI: 10.1007/s00253-020-10822-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 07/16/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022]
Abstract
The green alga Chlorella vulgaris has potential as a source of clean bioenergy with abundant metabolites and a high oil content, and antibiotics are often applied to remove bacteria from culture to obtain axenic algal strains. In this work, ceftazidime and gentamicin sulphate (GS) were added separately and in combination in the aseptic processing of C. vulgaris, and gene expression and metabolites were evaluated. The results showed that ceftazidime and GS effectively inhibited the proliferation of Cyanobacteria and Bacteroidetes, respectively. Overall, the effects of antibiotics on C. vulgaris differed: GS increased the algal concentration, whereas ceftazidime alone and in combination with GS treatment decreased the specific algal growth rate. Based on comparative transcription analysis, 5917 and 5899 differentially expressed genes (DEGs) were respectively upregulated and downregulated by ceftazidime, 963 and 3921 DEGs by GS, and 4532 and 1675 DEGs by the ceftazidime and GS combination. Pathway enrichment analysis showed that the downregulated DEGs in the ceftazidime groups were enriched in the fatty acid biosynthesis pathway but that the upregulated DEGs in the GS group were enriched in the fatty acid degradation pathway. Some pathways related to amino acid metabolism were markably influenced by antibiotic treatment. The results further indicated that antibiotics affected the intracellular concentration of fatty acids and amino acids in C. vulgaris. This study provides a new viewpoint regarding the response of C. vulgaris to antibiotics in the process of obtaining axenic algal strains. KEY POINTS: • Ceftazidime and gentamicin sulphate influenced bacterial proliferation. • Downregulated differentially expressed genes mapped to the fatty acid biosynthesis pathway. • Antibiotics affected intracellular concentrations of fatty acids and amino acids.
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Affiliation(s)
- Wenjing Wang
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 7 Chunhui Road, Yantai, 264003, Shandong, China
| | - Yanqing Sheng
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 7 Chunhui Road, Yantai, 264003, Shandong, China.
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Eismann AI, Perpetuo Reis R, Ferreira da Silva A, Negrão Cavalcanti D. Ulva spp. carotenoids: Responses to environmental conditions. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101916] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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Yang JJ, Yu DC, Ma YF, Yin Y, Shen SD. Antioxidative defense response of Ulva prolifera under high or low-temperature stimulus. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101703] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Transcriptome Profiling Provides Insight into the Genes in Carotenoid Biosynthesis during the Mesocarp and Seed Developmental Stages of Avocado ( Persea americana). Int J Mol Sci 2019; 20:ijms20174117. [PMID: 31450745 PMCID: PMC6747375 DOI: 10.3390/ijms20174117] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 11/17/2022] Open
Abstract
Avocado (Persea americana Mill.) is an economically important crop because of its high nutritional value. However, the absence of a sequenced avocado reference genome has hindered investigations of secondary metabolism. For next-generation high-throughput transcriptome sequencing, we obtained 365,615,152 and 348,623,402 clean reads as well as 109.13 and 104.10 Gb of sequencing data for avocado mesocarp and seed, respectively, during five developmental stages. High-quality reads were assembled into 100,837 unigenes with an average length of 847.40 bp (N50 = 1725 bp). Additionally, 16,903 differentially expressed genes (DEGs) were detected, 17 of which were related to carotenoid biosynthesis. The expression levels of most of these 17 DEGs were higher in the mesocarp than in the seed during five developmental stages. In this study, the avocado mesocarp and seed transcriptome were also sequenced using single-molecule long-read sequencing to acquired 25.79 and 17.67 Gb clean data, respectively. We identified 233,014 and 238,219 consensus isoforms in avocado mesocarp and seed, respectively. Furthermore, 104 and 59 isoforms were found to correspond to the putative 11 carotenoid biosynthetic-related genes in the avocado mesocarp and seed, respectively. The isoform numbers of 10 out of the putative 11 genes involved in the carotenoid biosynthetic pathway were higher in the mesocarp than those in the seed. Besides, alpha- and beta-carotene contents in the avocado mesocarp and seed during five developmental stages were also measured, and they were higher in the mesocarp than in the seed, which validated the results of transcriptome profiling. Gene expression changes and the associated variations in gene dosage could influence carotenoid biosynthesis. These results will help to further elucidate carotenoid biosynthesis in avocado.
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