LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 14

Search options

  1. Article ; Online: From swamp to field: how genes from mangroves and its associates can enhance crop salinity tolerance.

    Govindan, Ganesan / Harini, Prakash / Alphonse, Vinoth / Parani, Madasamy

    Molecular biology reports

    2024  Volume 51, Issue 1, Page(s) 598

    Abstract: Salinity stress is a critical challenge in crop production and requires innovative strategies to enhance the salt tolerance of plants. Insights from mangrove species, which are renowned for their adaptability to high-salinity environments, provides ... ...

    Abstract Salinity stress is a critical challenge in crop production and requires innovative strategies to enhance the salt tolerance of plants. Insights from mangrove species, which are renowned for their adaptability to high-salinity environments, provides valuable genetic targets and resources for improving crops. A significant hurdle in salinity stress is the excessive uptake of sodium ions (Na
    MeSH term(s) Salt Tolerance/genetics ; Avicennia/genetics ; Avicennia/metabolism ; Gene Expression Regulation, Plant/genetics ; Plants, Genetically Modified/genetics ; Crops, Agricultural/genetics ; Crops, Agricultural/metabolism ; Plant Roots/genetics ; Plant Roots/metabolism ; Salinity ; Plant Proteins/genetics ; Plant Proteins/metabolism ; Sodium/metabolism ; Arabidopsis/genetics ; Arabidopsis/metabolism ; Salt-Tolerant Plants/genetics ; Salt-Tolerant Plants/metabolism
    Chemical Substances Plant Proteins ; Sodium (9NEZ333N27)
    Language English
    Publishing date 2024-04-29
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 186544-4
    ISSN 1573-4978 ; 0301-4851
    ISSN (online) 1573-4978
    ISSN 0301-4851
    DOI 10.1007/s11033-024-09539-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: RNA N

    Sharma, Bishwas / Govindan, Ganesan / Li, Yongfang / Sunkar, Ramanjulu / Gregory, Brian D

    Non-coding RNA

    2024  Volume 10, Issue 1

    Abstract: Recently, post-transcriptional regulation of mRNA mediated by ... ...

    Abstract Recently, post-transcriptional regulation of mRNA mediated by N
    Language English
    Publishing date 2024-01-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2813993-8
    ISSN 2311-553X ; 2311-553X
    ISSN (online) 2311-553X
    ISSN 2311-553X
    DOI 10.3390/ncrna10010008
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: The versatility of green synthesized zinc oxide nanoparticles in sustainable agriculture: A review on metal-microbe interaction that rewards agriculture

    Gauba, Ankita / Hari, Sharath Kumar / Ramamoorthy, Vellaisamy / Vellasamy, Shanmugaiah / Govindan, Ganesan / Valan Arasu, M.

    Physiological and Molecular Plant Pathology. 2023 Apr. 13, p.102023-

    2023  , Page(s) 102023–

    Abstract: The integration of nanotechnology in the realm of agriculture, specifically through the utilization of nanofertilizers and nanopesticides, has been a topic of increasing interest in recent years. The application of fertilizers in the form of ... ...

    Abstract The integration of nanotechnology in the realm of agriculture, specifically through the utilization of nanofertilizers and nanopesticides, has been a topic of increasing interest in recent years. The application of fertilizers in the form of nanoparticles is one of the most promising solutions for the significant enhancement of agricultural production worldwide. This review highlights the versatility of green synthesized zinc oxide nanoparticles (ZnONPs) in sustainable agriculture and their interactions with plant-microbe systems. ZnONPs have been classified as a biosafe substance for biological species. Previous research has revealed the efficacy of ZnONPs in the induction of seed germination and plant growth, as well as its potential for biological control through its antimicrobial activities. However, it is important to note that the effects of ZnONPs on plant growth and metabolism can vary depending on the developmental phase of the plant. Furthermore, the uptake, transport and aggregation of ZnONPs by plants are dependent on the characteristics of the NPs and the morphology of the host plant. However, the use of ZnONPs in agriculture also poses some potential adverse effects, including toxicity to non-target organisms, accumulation in the food chain, and environmental pollution. These effects are influenced by various factors such as particle size, concentration, and exposure time. Thus, the review discusses the current knowledge on the toxicity and environmental impact of ZnONPs in agriculture and their potential mitigation strategies. Furthermore, this review aims to comprehensively highlight the potential applications of ZnONPs as a nanofertilizer in crop production, as well as to explore and understand the possible mechanisms of its antimicrobial activity. Additionally, the biological production of ZnONPs, its absorption, transport mechanisms, phytoremediation of heavy metals in plants and toxicity studies are also investigated.
    Keywords absorption ; antimicrobial properties ; biological control ; biological production ; crop production ; environmental impact ; exposure duration ; food chain ; host plants ; metabolism ; nanoparticles ; particle size ; phytoremediation ; plant growth ; plant pathology ; pollution ; seed germination ; sustainable agriculture ; toxicity ; zinc oxide ; Zinc-oxide nanoparticles ; Nanotechnology ; Nanofertilizers ; Metal microbe interaction ; Antimicrobial mechanism ; Green synthesis of nanoparticles ; Plant pathogen
    Language English
    Dates of publication 2023-0413
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Pre-press version
    ZDB-ID 742470-x
    ISSN 0885-5765
    ISSN 0885-5765
    DOI 10.1016/j.pmpp.2023.102023
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article ; Online: High Daytime Temperature Responsive MicroRNA Profiles in Developing Grains of Rice Varieties with Contrasting Chalkiness.

    Payne, David / Li, Yongfang / Govindan, Ganesan / Kumar, Anuj / Thomas, Julie / Addo-Quaye, Charles A / Pereira, Andy / Sunkar, Ramanjulu

    International journal of molecular sciences

    2023  Volume 24, Issue 14

    Abstract: High temperature impairs starch biosynthesis in developing rice grains and thereby increases chalkiness, affecting the grain quality. Genome encoded microRNAs (miRNAs) fine-tune target transcript abundances in a spatio-temporal specific manner, and this ... ...

    Abstract High temperature impairs starch biosynthesis in developing rice grains and thereby increases chalkiness, affecting the grain quality. Genome encoded microRNAs (miRNAs) fine-tune target transcript abundances in a spatio-temporal specific manner, and this mode of gene regulation is critical for a myriad of developmental processes as well as stress responses. However, the role of miRNAs in maintaining rice grain quality/chalkiness during high daytime temperature (HDT) stress is relatively unknown. To uncover the role of miRNAs in this process, we used five contrasting rice genotypes (low chalky lines Cyp, Ben, and KB and high chalky lines LaGrue and NB) and compared the miRNA profiles in the R6 stage caryopsis samples from plants subjected to prolonged HDT (from the onset of fertilization through R6 stage of caryopsis development). Our small RNA analysis has identified approximately 744 miRNAs that can be grouped into 291 families. Of these, 186 miRNAs belonging to 103 families are differentially regulated under HDT. Only two miRNAs, Osa-miR444f and Osa-miR1866-5p, were upregulated in all genotypes, implying that the regulations greatly varied between the genotypes. Furthermore, not even a single miRNA was commonly up/down regulated specifically in the three tolerant genotypes. However, three miRNAs (Osa-miR1866-3p, Osa-miR5150-3p and canH-miR9774a,b-3p) were commonly upregulated and onemiRNA (Osa-miR393b-5p) was commonly downregulated specifically in the sensitive genotypes (LaGrue and NB). These observations suggest that few similarities exist within the low chalky or high chalky genotypes, possibly due to high genetic variation. Among the five genotypes used, Cypress and LaGrue are genetically closely related, but exhibit contrasting chalkiness under HDT, and thus, a comparison between them is most relevant. This comparison revealed a general tendency for Cypress to display miRNA regulations that could decrease chalkiness under HDT compared with LaGrue. This study suggests that miRNAs could play an important role in maintaining grain quality in HDT-stressed rice.
    MeSH term(s) Humans ; Temperature ; Oryza/genetics ; Hot Temperature ; Edible Grain/genetics ; MicroRNAs/genetics
    Chemical Substances MicroRNAs
    Language English
    Publishing date 2023-07-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms241411631
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Splice variants of superoxide dismutases in rice and their expression profiles under abiotic stresses

    Saini, Ajay / Rohila, Jai Singh / Govindan, Ganesan / Li, Yong / Sunkar, Ramanjulu

    International journal of molecular sciences. 2021 Apr. 13, v. 22, no. 8

    2021  

    Abstract: The superoxide dismutases (SODs) play vital roles in controlling cellular reactive oxygen species (ROS) that are generated both under optimal as well as stress conditions in plants. Rice genome harbors seven SOD genes (CSD1, CSD2, CSD3, CSD4, FSD1, FSD2 ... ...

    Abstract The superoxide dismutases (SODs) play vital roles in controlling cellular reactive oxygen species (ROS) that are generated both under optimal as well as stress conditions in plants. Rice genome harbors seven SOD genes (CSD1, CSD2, CSD3, CSD4, FSD1, FSD2 and MSD) that encode seven constitutive transcripts. Of these, five SOD genes (CSD2, CSD3, CSD4, FSD1 and MSD) utilizes alternative splicing (AS) strategy and generate seven additional splice varinats (SVs), i.e., three for CSD3, and one each for CSD2, CSD4, FSD1 and MSD. The exon-intron organization of these SVs revealed variations in number and length of the exons and/or UTRs. We determined the expression patterns of SVs along with their consititutive forms of SODs in rice seedlings exposed to salt, osmotic, cold and oxidative stresses as well as copper deprivation. The results revealed that all of the seven SVs were transcriptionally active both in roots and shoots. When compared to their corresponding constitutive transcripts, the profiles of five SVs were almost similar while opposite profiles for two specific SVs (CSD3-SV4 and MSD-SV2) were consistently observed under stress conditions. Taken together, the present study provide a comprehensive analysis of the SVs of SODs and their responses to stress conditions in shoots and roots of rice seedlings.
    Keywords cold ; exons ; reactive oxygen species ; rice ; superoxide dismutase ; transcription (genetics)
    Language English
    Dates of publication 2021-0413
    Document type Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1661-6596
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms22083997
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  6. Article ; Online: Programmable Site-Specific Nucleases for Targeted Genome Engineering in Higher Eukaryotes.

    Govindan, Ganesan / Ramalingam, Sivaprakash

    Journal of cellular physiology

    2016  Volume 231, Issue 11, Page(s) 2380–2392

    Abstract: Recent advances in the targeted genome engineering enable molecular biologists to generate sequence specific modifications with greater efficiency and higher specificity in complex eukaryotic genomes. Programmable site-specific DNA cleavage reagents and ... ...

    Abstract Recent advances in the targeted genome engineering enable molecular biologists to generate sequence specific modifications with greater efficiency and higher specificity in complex eukaryotic genomes. Programmable site-specific DNA cleavage reagents and cellular DNA repair mechanisms have made this possible. These reagents have become powerful tools for delivering a site-specific genomic double-strand break (DSB) at the desired chromosomal locus, which produces sequence alterations through error-prone non-homologous end joining (NHEJ) resulting in gene inactivations/knockouts. Alternatively, the DSB can be repaired through homology-directed repair (HDR) using a donor DNA template, which leads to the introduction of desired sequence modifications at the predetermined site. Here, we summarize the role of three classes of nucleases; zinc finger nucleases (ZFNs), transcription activator like effector nucleases (TALENs), and clustered regularly interspaced palindromic repeats (CRISPR)/CRISPR associated protein 9 (Cas9) system in achieving targeted genome modifications. Further, we discuss the progress towards the applications of programmable site-specific nucleases (SSNs) in treating human diseases and other biological applications in economically important higher eukaryotic organisms such as plants and livestock. J. Cell. Physiol. 231: 2380-2392, 2016. © 2016 Wiley Periodicals, Inc.
    MeSH term(s) Animals ; Base Sequence ; Endonucleases/metabolism ; Eukaryota/genetics ; Gene Targeting ; Genetic Engineering/methods ; Genome ; Humans
    Chemical Substances Endonucleases (EC 3.1.-)
    Language English
    Publishing date 2016-11
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 3116-1
    ISSN 1097-4652 ; 0021-9541
    ISSN (online) 1097-4652
    ISSN 0021-9541
    DOI 10.1002/jcp.25367
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Splice Variants of Superoxide Dismutases in Rice and Their Expression Profiles under Abiotic Stresses.

    Saini, Ajay / Rohila, Jai S / Govindan, Ganesan / Li, Yong-Fang / Sunkar, Ramanjulu

    International journal of molecular sciences

    2021  Volume 22, Issue 8

    Abstract: The superoxide dismutases (SODs) play vital roles in controlling cellular reactive oxygen species (ROS) that are generated both under optimal as well as stress conditions in plants. The rice genome harbors seven SOD genes ( ...

    Abstract The superoxide dismutases (SODs) play vital roles in controlling cellular reactive oxygen species (ROS) that are generated both under optimal as well as stress conditions in plants. The rice genome harbors seven SOD genes (
    MeSH term(s) Alternative Splicing/genetics ; Base Sequence ; Cold Temperature ; Copper/toxicity ; Exons/genetics ; Gene Expression Profiling ; Gene Expression Regulation, Enzymologic ; Gene Expression Regulation, Plant ; Introns/genetics ; MicroRNAs/genetics ; MicroRNAs/metabolism ; Oryza/genetics ; Osmotic Pressure ; RNA, Messenger/genetics ; RNA, Messenger/metabolism ; Stress, Physiological/genetics ; Superoxide Dismutase/genetics
    Chemical Substances MicroRNAs ; RNA, Messenger ; Copper (789U1901C5) ; Superoxide Dismutase (EC 1.15.1.1)
    Language English
    Publishing date 2021-04-13
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms22083997
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Ectopic expression of AmNAC1 from Avicennia marina (Forsk.) Vierh. confers multiple abiotic stress tolerance in yeast and tobacco

    Murugesan, Ashok Kumar / Somasundaram, Suji / Mohan, Harikrishnan / Parida, Ajay K / Alphonse, Vinoth / Govindan, Ganesan

    Plant cell, tissue, and organ culture. 2020 July, v. 142, no. 1

    2020  

    Abstract: Abiotic factors like salinity, drought and cold affect agricultural productivity substantially worldwide. NAC (NAM, ATAF1/2 and CUC2) family transcription factors have been shown to play important roles in biotic and abiotic stress responses in many ... ...

    Abstract Abiotic factors like salinity, drought and cold affect agricultural productivity substantially worldwide. NAC (NAM, ATAF1/2 and CUC2) family transcription factors have been shown to play important roles in biotic and abiotic stress responses in many plant species. Our previous studies have shown that AmNAC1, a gene from mangrove Avicennia marina, is differentially regulated in response to salt, drought and cold stresses and salicylic acid treatment. To gain more insights into the function of AmNAC1 in abiotic stress, AmNAC1 was heterologously expressed in yeast and tobacco. Heterologous expression of AmNAC1 in yeast (Saccharomyces cerevisiae) resulted in improved tolerance to salinity (NaCl and LiCl), alkalinity (NaHCO₃) stresses. In addition, transgenic yeast exhibited enhanced tolerance compared to control when subjected to high (50 °C) and freezing (− 20 °C) temperature. Similarly, overexpression of AmNAC1 in tobacco using the constitutive promoter (2xCaMV) demonstrated increased tolerance to abiotic stresses such as salinity, drought and cold. Specifically, compared to wild type (WT) and vector control (VC), AmNAC1 transgenic lines exhibited higher germination, increased root length and better survival rates at the whole plant level. Collectively, these results indicate a role for AmNAC1 in multiple abiotic stress tolerance.
    Keywords Avicennia marina ; Saccharomyces cerevisiae ; acid treatment ; agricultural productivity ; alkalinity ; biotic stress ; cold stress ; drought ; environmental factors ; freezing ; genes ; genetically modified organisms ; germination ; heterologous gene expression ; lithium chloride ; promoter regions ; salicylic acid ; salinity ; salt tolerance ; sodium bicarbonate ; sodium chloride ; stress response ; stress tolerance ; survival rate ; temperature ; tobacco ; transcription factors ; vector control ; yeasts
    Language English
    Dates of publication 2020-07
    Size p. 51-68.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 406394-6
    ISSN 1573-5044 ; 0167-6857
    ISSN (online) 1573-5044
    ISSN 0167-6857
    DOI 10.1007/s11240-020-01830-5
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  9. Article ; Online: mRNA N

    Govindan, Ganesan / Sharma, Bishwas / Li, Yong-Fang / Armstrong, Christopher D / Merum, Pandrangaiah / Rohila, Jai S / Gregory, Brian D / Sunkar, Ramanjulu

    The Plant journal : for cell and molecular biology

    2022  Volume 111, Issue 4, Page(s) 1052–1068

    Abstract: Plants respond to low temperatures by altering the mRNA abundance of thousands of genes contributing to numerous physiological and metabolic processes that allow them to adapt. At the post-transcriptional level, these cold stress-responsive transcripts ... ...

    Abstract Plants respond to low temperatures by altering the mRNA abundance of thousands of genes contributing to numerous physiological and metabolic processes that allow them to adapt. At the post-transcriptional level, these cold stress-responsive transcripts undergo alternative splicing, microRNA-mediated regulation and alternative polyadenylation, amongst others. Recently, m
    MeSH term(s) Arabidopsis/metabolism ; Arabidopsis Proteins/genetics ; Arabidopsis Proteins/metabolism ; Cold Temperature ; Freezing ; Gene Expression Regulation, Plant/genetics ; Pemetrexed/metabolism ; RNA, Messenger/genetics
    Chemical Substances Arabidopsis Proteins ; RNA, Messenger ; Pemetrexed (04Q9AIZ7NO)
    Language English
    Publishing date 2022-07-13
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1088037-9
    ISSN 1365-313X ; 0960-7412
    ISSN (online) 1365-313X
    ISSN 0960-7412
    DOI 10.1111/tpj.15872
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: mRNA N6‐methyladenosine is critical for cold tolerance in Arabidopsis

    Govindan, Ganesan / Sharma, Bishwas / Li, Yong‐Fang / Armstrong, Christopher D. / Merum, Pandrangaiah / Rohila, Jai S. / Gregory, Brian D. / Sunkar, Ramanjulu

    plant journal. 2022 Aug., v. 111, no. 4

    2022  

    Abstract: Plants respond to low temperatures by altering the mRNA abundance of thousands of genes contributing to numerous physiological and metabolic processes that allow them to adapt. At the post‐transcriptional level, these cold stress‐responsive transcripts ... ...

    Abstract Plants respond to low temperatures by altering the mRNA abundance of thousands of genes contributing to numerous physiological and metabolic processes that allow them to adapt. At the post‐transcriptional level, these cold stress‐responsive transcripts undergo alternative splicing, microRNA‐mediated regulation and alternative polyadenylation, amongst others. Recently, m⁶A, m⁵C and other mRNA modifications that can affect the regulation and stability of RNA were discovered, thus revealing another layer of post‐transcriptional regulation that plays an important role in modulating gene expression. The importance of m⁶A in plant growth and development has been appreciated, although its significance under stress conditions is still underexplored. To assess the role of m⁶A modifications during cold stress responses, methylated RNA immunoprecipitation sequencing was performed in Arabidopsis seedlings esposed to low temperature stress (4°C) for 24 h. This transcriptome‐wide m⁶A analysis revealed large‐scale shifts in this modification in response to low temperature stress. Because m⁶A is known to affect transcript stability/degradation and translation, we investigated these possibilities. Interestingly, we found that cold‐enriched m⁶A‐containing transcripts demonstrated the largest increases in transcript abundance coupled with increased ribosome occupancy under cold stress. The significance of the m⁶A epitranscriptome on plant cold tolerance was further assessed using the mta mutant in which the major m⁶A methyltransferase gene was mutated. Compared to the wild‐type, along with the differences in CBFs and COR gene expression levels, the mta mutant exhibited hypersensitivity to cold treatment as determined by primary root growth, biomass, and reactive oxygen species accumulation. Furthermore, and most importantly, both non‐acclimated and cold‐acclimated mta mutant demonstrated hypersensitivity to freezing tolerance. Taken together, these findings suggest a critical role for the epitranscriptome in cold tolerance of Arabidopsis.
    Keywords Arabidopsis ; biomass ; cold ; cold stress ; cold tolerance ; cold treatment ; gene expression ; genes ; hypersensitivity ; methylation ; methyltransferases ; mutants ; precipitin tests ; reactive oxygen species ; ribosomes ; root growth
    Language English
    Dates of publication 2022-08
    Size p. 1052-1068.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1088037-9
    ISSN 1365-313X ; 0960-7412
    ISSN (online) 1365-313X
    ISSN 0960-7412
    DOI 10.1111/tpj.15872
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top