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Qi Z, Liu C, Wang N, Cui J, Hu J, Gu R, Meng L, Wang P, Zhai J, Shui G, Cui S. The dehydration-responsive protein PpFAS1.3 in moss Physcomitrium patens plays a regulatory role in lipid metabolism. JOURNAL OF PLANT PHYSIOLOGY 2024; 297:154253. [PMID: 38703549 DOI: 10.1016/j.jplph.2024.154253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 05/06/2024]
Abstract
Moss plants appear in the early stages of land colonization and possess varying degrees of dehydration tolerance. In this study, a protein called PpFAS1.3 was identified, which contains a fasciclin 1-like domain and is essential for the moss Physcomitrium patens' response to short-term rapid dehydration. When the FAS1.3 protein was knocked out, leafyshoots showed a significant decrease in tolerance to rapid dehydration, resulting in accelerated water loss and increased membrane leakage. Phylogenetic analysis suggests that PpFAS1.3 and its homologous proteins may have originated from bacteria and are specifically found in non-vascular plants like mosses and liverworts. As a dehydration-related protein, FAS1.3 plays a significant role in regulating lipid metabolism, particularly in the synthesis of free fatty acids (FFA) and the metabolism of two phospholipids, PC and PA. This discovery highlights the close connection between PpFAS1.3 and lipid metabolism, providing new insights into the molecular mechanisms underlying plant adaptation to stresses.
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Affiliation(s)
- Zhenyu Qi
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Chen Liu
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Ning Wang
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Jipeng Cui
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Jia Hu
- Central Laboratory, Capital Medical University, Beijing, 100029, China
| | - Ruoqing Gu
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Le Meng
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Pan Wang
- College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Jianan Zhai
- College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Suxia Cui
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China.
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2
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Rajčić MV, Šircelj H, Matić NA, Pavkov SD, Poponessi S, Tosti TB, Sabovljević AD, Sabovljević MS, Vujičić MM. Effects of the Salt Stress Duration and Intensity on Developmental and Physiological Features of the Moss Polytrichum formosum. PLANTS (BASEL, SWITZERLAND) 2024; 13:1438. [PMID: 38891247 PMCID: PMC11174806 DOI: 10.3390/plants13111438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/16/2024] [Accepted: 05/18/2024] [Indexed: 06/21/2024]
Abstract
The two accessions of the polytrichaceous moss species Polytrichum formosum, namely German and Serbian genotypes, were subjected to salt stress, aiming to study the species' developmental and physiological features. Various concentrations of sodium chloride were applied to an axenic in vitro culture of the two moss genotypes, and the growth parameters as well as physiological feature changes were followed. As inferred by the morpho-developmental parameters and survival index, the Serbian genotype showed higher resistance to salt stress as compared to the German one. However, both moss genotypes survived the highest applied concentration (500 mM). As expected, short exposures to salt were rather easily overcome. No clear patterns in sugar content and changes were observed during the stress, but they are surely included in salt stress response and tolerance in P. formosum. Longer stress increased total chlorophyll content in both genotypes. In short-term applied salt stress, the Serbian genotype had a higher total chlorophyll concentration to control unstressed plants, while the German genotype decreased the total amount of chlorophyll. Similarly, carotenoids were shown to be significantly higher in the Serbian genotype, both in unstressed and treated plants, compared to the German one. The contents of tocopherols were higher in the Serbian genotype in controlled unstressed and subsequently short- and long-stressed plantlets compared to the German accession. In general, we can assume that P. formosum is unexpectedly tolerant to salt stress and that there are differences within various accessions of overall European populations, as referred by two randomly selected genotypes, which is most probably a consequence of different genetic structure.
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Affiliation(s)
- Marija V. Rajčić
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, RS-11000 Belgrade, Serbia; (N.A.M.); (A.D.S.); (M.S.S.); (M.M.V.)
| | - Helena Šircelj
- Agronomy Department, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia
| | - Nikolina A. Matić
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, RS-11000 Belgrade, Serbia; (N.A.M.); (A.D.S.); (M.S.S.); (M.M.V.)
| | - Sara D. Pavkov
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, RS-21000 Novi Sad, Serbia
| | - Silvia Poponessi
- Department of Life and Environmental Sciences, Botany Section, University of Cagliari, IT-09123 Cagliari, Italy
| | - Tomislav B. Tosti
- Faculty of Chemistry, University of BelgradSe, Studentski trg 12–16, RS-11158 Belgrade, Serbia;
| | - Aneta D. Sabovljević
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, RS-11000 Belgrade, Serbia; (N.A.M.); (A.D.S.); (M.S.S.); (M.M.V.)
- Center of Plant Biotechnology and Conservation (CPBC), Takovska 43, RS-11000 Belgrade, Serbia
| | - Marko S. Sabovljević
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, RS-11000 Belgrade, Serbia; (N.A.M.); (A.D.S.); (M.S.S.); (M.M.V.)
- Center of Plant Biotechnology and Conservation (CPBC), Takovska 43, RS-11000 Belgrade, Serbia
- Department of Botany, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Šafárik University in Kosice, Mánesova 23, SK-040 01 Košice, Slovakia
| | - Milorad M. Vujičić
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, RS-11000 Belgrade, Serbia; (N.A.M.); (A.D.S.); (M.S.S.); (M.M.V.)
- Center of Plant Biotechnology and Conservation (CPBC), Takovska 43, RS-11000 Belgrade, Serbia
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3
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Zhang X, Ekwealor JTB, Mishler BD, Silva AT, Yu L, Jones AK, Nelson ADL, Oliver MJ. Syntrichia ruralis: emerging model moss genome reveals a conserved and previously unknown regulator of desiccation in flowering plants. THE NEW PHYTOLOGIST 2024. [PMID: 38415863 DOI: 10.1111/nph.19620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/05/2024] [Indexed: 02/29/2024]
Abstract
Water scarcity, resulting from climate change, poses a significant threat to ecosystems. Syntrichia ruralis, a dryland desiccation-tolerant moss, provides valuable insights into survival of water-limited conditions. We sequenced the genome of S. ruralis, conducted transcriptomic analyses, and performed comparative genomic and transcriptomic analyses with existing genomes and transcriptomes, including with the close relative S. caninervis. We took a genetic approach to characterize the role of an S. ruralis transcription factor, identified in transcriptomic analyses, in Arabidopsis thaliana. The genome was assembled into 12 chromosomes encompassing 21 169 protein-coding genes. Comparative analysis revealed copy number and transcript abundance differences in known desiccation-associated gene families, and highlighted genome-level variation among species that may reflect adaptation to different habitats. A significant number of abscisic acid (ABA)-responsive genes were found to be negatively regulated by a MYB transcription factor (MYB55) that was upstream of the S. ruralis ortholog of ABA-insensitive 3 (ABI3). We determined that this conserved MYB transcription factor, uncharacterized in Arabidopsis, acts as a negative regulator of an ABA-dependent stress response in Arabidopsis. The new genomic resources from this emerging model moss offer novel insights into how plants regulate their responses to water deprivation.
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Affiliation(s)
- Xiaodan Zhang
- The Boyce Thompson Institute, Cornell University, Ithaca, NY, 14853, USA
| | - Jenna T B Ekwealor
- Department of Biology, Utah State University, Logan, UT, 84322, USA
- Department of Biology, San Francisco State University, San Francisco, CA, 94132, USA
| | - Brent D Mishler
- University and Jepson Herbaria, Berkeley, CA, 94720-2465, USA
- Department of Integrative Biology, University of California, Berkeley, CA, 94720-2465, USA
| | | | - Li'ang Yu
- The Boyce Thompson Institute, Cornell University, Ithaca, NY, 14853, USA
| | - Andrea K Jones
- The Boyce Thompson Institute, Cornell University, Ithaca, NY, 14853, USA
| | - Andrew D L Nelson
- The Boyce Thompson Institute, Cornell University, Ithaca, NY, 14853, USA
| | - Melvin J Oliver
- Division of Plant Sciences and Technology and Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211, USA
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Leng F, Zhou G, Shi R, Liu C, Lin Y, Yu X, Zhang Y, He X, Liu Z, Sun M, Bao F, Hu Y, He Y. Development of PEG-mediated genetic transformation and gene editing system of Bryum argenteum as an abiotic stress tolerance model plant. PLANT CELL REPORTS 2024; 43:63. [PMID: 38340191 DOI: 10.1007/s00299-024-03143-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/31/2023] [Indexed: 02/12/2024]
Abstract
KEY MESSAGE To establish a sterile culture system and protoplast regeneration system for Bryum argenteum, and to establish and apply CRISPR/Cas9 system in Bryum argenteum. Bryum argenteum is a fascinating, cosmopolitan, and versatile moss species that thrives in various disturbed environments. Because of its comprehensive tolerance to the desiccation, high UV and extreme temperatures, it is emerging as a model moss for studying the molecular mechanisms underlying plant responses to abiotic stresses. However, the lack of basic tools such as gene transformation and targeted genome modification has hindered the understanding of the molecular mechanisms underlying the survival of B. argenteum in different environments. Here, we reported the protonema of B. argenteum can survive up to 95.4% water loss. In addition, the genome size of B. argenteum is approximately 313 Mb by kmer analysis, which is smaller than the previously reported 700 Mb. We also developed a simple method for protonema induction and an efficient protoplast isolation and regeneration protocol for B. argenteum. Furthermore, we established a PEG-mediated protoplast transient transfection and stable transformation system for B. argenteum. Two homologues of ABI3(ABA-INSENSITIVE 3) gene were successfully cloned from B. argenteum. To further investigate the function of the ABI3 gene in B. argenteum, we used the CRISPR/Cas9 genetic editing system to target the BaABI3A and BaABI3B gene in B. argenteum protoplasts. This resulted in mutagenesis at the target in about 2-5% of the regenerated plants. The isolated abi3a and abi3b mutants exhibited increased sensitivity to desiccation, suggesting that BaABI3A and BaABI3B play redundant roles in desiccation stress. Overall, our results provide a rapid and simple approach for molecular genetics in B. argenteum. This study contributes to a better understanding of the molecular mechanisms of plant adaptation to extreme environmental.
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Affiliation(s)
- Fengjun Leng
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Guiwei Zhou
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Ruoyuan Shi
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Chengyang Liu
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Yirui Lin
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Xinqiang Yu
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Yanhua Zhang
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Xiangxi He
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Zhu Liu
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
| | - Mingming Sun
- Laboratory for Micro-Sized Functional Materials, College of Elementary Education, Capital Normal University, Beijing, 100048, China
| | - Fang Bao
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China.
| | - Yong Hu
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China.
| | - Yikun He
- Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing Municipal Government, and College of Life Sciences, Capital Normal University, Beijing, 100048, China
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Bi G, Zhao S, Yao J, Wang H, Zhao M, Sun Y, Hou X, Haas FB, Varshney D, Prigge M, Rensing SA, Jiao Y, Ma Y, Yan J, Dai J. Near telomere-to-telomere genome of the model plant Physcomitrium patens. NATURE PLANTS 2024; 10:327-343. [PMID: 38278953 DOI: 10.1038/s41477-023-01614-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/19/2023] [Indexed: 01/28/2024]
Abstract
The model plant Physcomitrium patens has played a pivotal role in enhancing our comprehension of plant evolution and development. However, the current genome harbours numerous regions that remain unfinished and erroneous. To address these issues, we generated an assembly using Oxford Nanopore reads and Hi-C mapping. The assembly incorporates telomeric and centromeric regions, thereby establishing it as a near telomere-to-telomere genome except a region in chromosome 1 that is not fully assembled due to its highly repetitive nature. This near telomere-to-telomere genome resolves the chromosome number at 26 and provides a gap-free genome assembly as well as updated gene models to aid future studies using this model organism.
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Affiliation(s)
- Guiqi Bi
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Shijun Zhao
- CAS Key Laboratory of Quantitative Engineering Biology, Guangdong Provincial Key Laboratory of Synthetic Genomics and Shenzhen Key Laboratory of Synthetic Genomics, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jiawei Yao
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Huan Wang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, China
| | - Mengkai Zhao
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Yuanyuan Sun
- University of Chinese Academy of Sciences, Beijing, China
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Xueren Hou
- University of Chinese Academy of Sciences, Beijing, China
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
| | - Fabian B Haas
- Department of Algal Development and Evolution, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Deepti Varshney
- Faculty of Chemistry and Pharmacy, University of Freiburg, Freiburg, Germany
| | - Michael Prigge
- Department of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, USA
| | - Stefan A Rensing
- Faculty of Chemistry and Pharmacy, University of Freiburg, Freiburg, Germany
| | - Yuling Jiao
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China
- School of Life Sciences, Center for Quantitative Biology, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Yingxin Ma
- CAS Key Laboratory of Quantitative Engineering Biology, Guangdong Provincial Key Laboratory of Synthetic Genomics and Shenzhen Key Laboratory of Synthetic Genomics, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jianbin Yan
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
| | - Junbiao Dai
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
- CAS Key Laboratory of Quantitative Engineering Biology, Guangdong Provincial Key Laboratory of Synthetic Genomics and Shenzhen Key Laboratory of Synthetic Genomics, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
- University of Chinese Academy of Sciences, Beijing, China.
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Wadhwa N, Singh D, Yadav R, Kapoor S, Kapoor M. Role of TRDMT1/DNMT2 in stress adaptation and its influence on transcriptome and proteome dynamics under osmotic stress in Physcomitrium patens. PHYSIOLOGIA PLANTARUM 2023; 175:e14014. [PMID: 37882266 DOI: 10.1111/ppl.14014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/07/2023] [Accepted: 08/21/2023] [Indexed: 10/27/2023]
Abstract
Early land plants such as the moss Physcomitrium patens lack several morphological traits that offer protection to tracheophytes from environmental stresses. These plants instead have evolved several physiological and biochemical mechanisms that facilitate them to adapt to terrestrial stresses such as drought. We have previously shown that loss-of-function mutants of tRNA (cytosine(38)-C(5))-methyltransferase TRDMT1/DNMT2 in P. patens are highly sensitive to oxidative and osmotic stress. To gain insight into the role of PpTRDMT1/PpDNMT2 in modulating genetic networks under osmotic stress, genome-wide transcriptome and proteome studies were undertaken in wild-type and ppdnmt2 plants. Transcriptome analysis revealed 375 genes to be differentially expressed in the ppdnmt2 under stress compared to the WT. Most of these genes are affiliated with carbohydrate metabolic pathways, photosynthesis, cell wall biogenesis, pathways related to isotropic and polarised cell growth and transcription factors among others. Histochemical staining showed elevated levels of reactive oxygen species in ppdnmt2 while transmission electron microscopy revealed no distinct defects in the ultrastructure of chloroplasts. Immunoprecipitation using PpDNMT2-specific antibody coupled with mass spectrometry revealed core proteins of the glycolytic pathway, antioxidant enzymes, proteins of amino acid biosynthetic pathways and photosynthesis-related proteins among others to co-purify with PpTRDMT1/PpDNMT2 under osmotic stress. Yeast two-hybrid assays, protein deletion and α-galactosidase assays showed the cytosol glycolytic protein glyceraldehyde 3-phosphate dehydrogenase to bind to the catalytic motifs in PpTRDMT1/PpDNMT2. Results presented in this study allow us to better understand genetic networks linking enzymes of energy metabolism, epigenetic processes and RNA pol II-mediated transcription during osmotic stress tolerance in P. patens.
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Affiliation(s)
- Nikita Wadhwa
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Delhi, India
| | - Darshika Singh
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Delhi, India
| | - Radha Yadav
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Delhi, India
| | - Sanjay Kapoor
- Interdisciplinary Centre for Plant Genomics and Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, Delhi, India
| | - Meenu Kapoor
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Delhi, India
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Koselski M, Hoernstein SNW, Wasko P, Reski R, Trebacz K. Long-Distance Electrical and Calcium Signals Evoked by Hydrogen Peroxide in Physcomitrella. PLANT & CELL PHYSIOLOGY 2023; 64:880-892. [PMID: 37233615 PMCID: PMC10434737 DOI: 10.1093/pcp/pcad051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 05/15/2023] [Accepted: 07/21/2023] [Indexed: 05/27/2023]
Abstract
Electrical and calcium signals in plants are some of the basic carriers of information that are transmitted over a long distance. Together with reactive oxygen species (ROS) waves, electrical and calcium signals can participate in cell-to-cell signaling, conveying information about different stimuli, e.g. abiotic stress, pathogen infection or mechanical injury. There is no information on the ability of ROS to evoke systemic electrical or calcium signals in the model moss Physcomitrella nor on the relationships between these responses. Here, we show that the external application of hydrogen peroxide (H2O2) evokes electrical signals in the form of long-distance changes in the membrane potential, which transmit through the plant instantly after stimulation. The responses were calcium-dependent since their generation was inhibited by lanthanum, a calcium channel inhibitor (2 mM), and EDTA, a calcium chelator (0.5 mM). The electrical signals were partially dependent on glutamate receptor (GLR) ion channels since knocking-out the GLR genes only slightly reduced the amplitude of the responses. The basal part of the gametophyte, which is rich in protonema cells, was the most sensitive to H2O2. The measurements carried out on the protonema expressing fluorescent calcium biosensor GCaMP3 proved that calcium signals propagated slowly (>5 µm/s) and showed a decrement. We also demonstrate upregulation of a stress-related gene that appears in a distant section of the moss 8 min after the H2O2 treatment. The results help understand the importance of both types of signals in the transmission of information about the appearance of ROS in the plant cell apoplast.
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Affiliation(s)
- Mateusz Koselski
- Department of Plant Physiology and Biophysics, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, Lublin 20-033, Poland
| | - Sebastian N. W Hoernstein
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestrasse 1, Freiburg 79104, Germany
| | - Piotr Wasko
- Department of Plant Physiology and Biophysics, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, Lublin 20-033, Poland
| | - Ralf Reski
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestrasse 1, Freiburg 79104, Germany
- Signalling Research Centres BIOSS and CIBSS, Schaenzlestrasse 18, Freiburg 79104, Germany
| | - Kazimierz Trebacz
- Department of Plant Physiology and Biophysics, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, Lublin 20-033, Poland
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8
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Cao X, Sui J, Li H, Yue W, Liu T, Hou D, Liang J, Wu Z. Enhancing heat stress tolerance in Lanzhou lily ( Lilium davidii var. unicolor) with Trichokonins isolated from Trichoderma longibrachiatum SMF2. FRONTIERS IN PLANT SCIENCE 2023; 14:1182977. [PMID: 37351207 PMCID: PMC10282843 DOI: 10.3389/fpls.2023.1182977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/10/2023] [Indexed: 06/24/2023]
Abstract
Lanzhou lily (Lilium davidii var. unicolor) is a renowned edible crop produced in China and relatively sensitive to high temperature (HT). Trichokonins (TKs) are antimicrobial peptaibols secreted from Trichoderma longibrachiatum strain SMF2. Here, we report that TKs application improves the thermotolerance of Lanzhou lily. The activity of the antioxidant enzyme system (SOD, CAT, and POD), the level of heat-resistance-associated phytohormones (ABA, SA, and JA), the relative water content (RWC), the content of chlorophyll (Chl), and the net photosynthetic rate (P n) were promoted by TKs treatment in Lanzhou lily plants subjected to heat stress (HS). TKs treatment also mitigated cell injury as shown by a lower accumulation of malondialdehyde (MDA) and relative electrolyte leakage (REL) under HS conditions. RNA-seq data analysis showed that more than 4.5 times differentially expressed genes (DEGs) responded to TKs treatment under HS compared to non-HS, and TKs treatment reduced protein folding and enhanced cellular repair function under HS conditions. The analyses of DEGs involved in hormone (ABA, SA and JA) synthesis and signaling pathways suggested that TKs might improve Lanzhou lily heat tolerance by promoting ABA synthesis and signal transduction. TKs highly induced DEGs of the HSF-HSP pathway under HS, in which HSFA2 accounted for most of the HSF family. Furthermore, TKs treatment resulted in the upregulation of heat-protective genes LzDREB2B, LzHsfA2a, LzMBF1c, LzHsp90, and LzHsp70 involved in HSF-HSP signal pathway after long-term HS. LzHsfA2a-1 likely plays a key role in acquisition of TKs-induced thermotolerance of Lanzhou lily as evidenced by the sustained response to HS, the enhanced response to TKs treatment under long-term HS, and the high sequence similarity to LlHsfA2a which is a key regulator for the improvement of heat tolerance in Lilium longiflorum. Our results reveal the underlying mechanisms of TKs-mediated thermotolerance in Lanzhou lily and highlight an attractive approach to protecting crop plants from damage caused by HS in a global warming future.
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Affiliation(s)
- Xing Cao
- Department of Environmental Art Design, College of Architecture, Yantai University, Yantai, China
| | - Juanjuan Sui
- Engineering Technology Research Center of Anti-aging Chinese Herbal Medicine, Biology and Food Engineering College, Fuyang Normal University, Fuyang, China
| | - Haiyan Li
- Department of Environmental Art Design, College of Architecture, Yantai University, Yantai, China
| | - Wenxiu Yue
- Department of Environmental Art Design, College of Architecture, Yantai University, Yantai, China
| | - Tao Liu
- Department of Environmental Art Design, College of Architecture, Yantai University, Yantai, China
| | - Dong Hou
- Vegetable Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou, China
| | - Jiahui Liang
- Institute of Grassland, Flowers and Ecology, Key Laboratory of Urban Agriculture (North), Ministry of Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Ze Wu
- Key Laboratory of Landscaping Agriculture, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, China
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Çelik H, Arıkan B, Kara NT, Uçarlı C, Çakır Ö. Transcriptomic analysis of salt stress induced chlorophyll biosynthesis-related genes in photoheterotrophic Arabidopsis thaliana calli. Funct Integr Genomics 2023; 23:146. [PMID: 37133632 DOI: 10.1007/s10142-023-01076-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/14/2023] [Accepted: 04/26/2023] [Indexed: 05/04/2023]
Abstract
In order to investigate the salt stress induced chlorophyll biosynthesis-related genes in photoheterotrophic cultures, we performed RNA-Seq analysis on A. thaliana calli exposed to 100 mM NaCl on MS medium containing 0.5 mg/L 2,4-D 30 days. Four different conditions of samples were sequenced on Illumina HiSeq Platform in total and generated about 4.49 Gb per sample. The average genome and gene mapping rates were 93.52% and 90.78%, respectively. According to expression profile analysis, some DEGs demonstrated altered related to chlorophyll pigment metabolism. According to analysis, green callus color of photoheterotrophic calli were mainly connected with the induction of LHCB4.3 light harvesting complex photosystem II (Gene ID:818599), AT1G49975 photosystem I reaction center subunit N (Gene ID: 841421), PAM68 PAM68-like protein (DUF3464) (Gene ID: 2745715) and AT3G63540 thylakoid lumenal protein (Mog1/PsbP/DUF1795-like photosystem II reaction center PsbP family protein)(Gene ID: 7922413) genes. Furthermore, 8 DEGs were randomly selected to validate the transcriptome profiles via qPCR. These results will provide a foundation for further studies aimed at giving photosynthetic properties to in vitro plant cultures.
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Affiliation(s)
- Haluk Çelik
- Istanbul University, Institute of Science, Program of Molecular Biology and Genetics, Istanbul, Türkiye
| | - Burcu Arıkan
- Istanbul University, Faculty of Science, Department of Molecular Biology and Genetics, Vezneciler, 34134, Istanbul, Türkiye
| | - Neslihan Turgut Kara
- Istanbul University, Faculty of Science, Department of Molecular Biology and Genetics, Vezneciler, 34134, Istanbul, Türkiye
| | - Cüneyt Uçarlı
- Istanbul University, Faculty of Science, Department of Molecular Biology and Genetics, Vezneciler, 34134, Istanbul, Türkiye
| | - Özgür Çakır
- Istanbul University, Faculty of Science, Department of Molecular Biology and Genetics, Vezneciler, 34134, Istanbul, Türkiye.
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10
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Jadranin BZ, Ćosić MV, Božović DP, Vujičić MM, Ignatov MS, Ignatova EA, Sabovljević AD, Sabovljević MS. An Insight into the Biology of the Rare and Peculiar Moss Pterygoneurum sibiricum (Pottiaceae): A Conservation Physiology Approach. PLANTS (BASEL, SWITZERLAND) 2023; 12:1359. [PMID: 36987048 PMCID: PMC10057447 DOI: 10.3390/plants12061359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/26/2023] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
The biological features of the recently described peculiar and rare pottioid moss species Pterygoneurum sibiricum have been studied. A conservation physiology approach through in vitro axenic establishment and laboratory-controlled tests was applied to learn more about its development, physiology, and ecology. Additionally, ex situ collection for this species was established, and a micropropagation methodology was developed. The results obtained clearly document its reaction to salt stress in contrast to its sibling bryo-halophyte species P. kozlovii. The reaction to exogenously applied plant growth regulators, auxin and cytokinin, can be used in the different moss propagation phases of this species or for target structure production and development. Inference to the poorly known ecology of this species should also help in recent species records, and thus improve knowledge about its distribution and conservation.
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Affiliation(s)
- Bojana Z. Jadranin
- Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
| | - Marija V. Ćosić
- Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
| | - Djordje P. Božović
- Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
| | - Milorad M. Vujičić
- Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
| | - Michael S. Ignatov
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory Str. 1-12, 119234 Moscow, Russia
- Tsitsin Main Botanical Garden, Russian Academy of Sciences, Botanicheskaya Str. 4, 127276 Moscow, Russia
| | - Elena A. Ignatova
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory Str. 1-12, 119234 Moscow, Russia
| | - Aneta D. Sabovljević
- Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
| | - Marko S. Sabovljević
- Institute of Botany and Botanical Garden Jevremovac, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
- Department of Botany, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Šafárik University in Košice, Mánesova 23, 040 01 Košice, Slovakia
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11
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Ćosić MV, Mišić DM, Jakovljević KM, Giba ZS, Sabovljević AD, Sabovljević MS, Vujičić MM. Analysis of the Qualitative and Quantitative Content of the Phenolic Compounds of Selected Moss Species under NaCl Stress. Molecules 2023; 28:molecules28041794. [PMID: 36838781 PMCID: PMC9967137 DOI: 10.3390/molecules28041794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/06/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
The response to salt stress analysed by quantitative and qualitative analyses in three selected moss species was studied. Non-halophytic funaroid Physcomitrium patens and two halophytic mosses, funaroid Entosthodon hungaricus and pottioid Hennediella heimii were exposed to salt stress under controlled in vitro conditions. The results clearly showed various phenolics to be present and included to some extent as a non-enzymatic component of oxidative, i.e., salt stress. The common pattern of responses characteristic of phenolic compounds was not present in these moss species, but in all three species the role of phenolics to stress tolerance was documented. The phenolic p-coumaric acid detected in all three species is assumed to be a common phenolic included in the antioxidative response and salt-stress tolerance. Although the stress response in each species also included other phenolics, the mechanisms were different, and also dependent on the stress intensity and duration.
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Affiliation(s)
- Marija V. Ćosić
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
- Correspondence:
| | - Danijela M. Mišić
- Institute for Biological Research “Siniša Stanković”, National Institute of the Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Ksenija M. Jakovljević
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
| | - Zlatko S. Giba
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
| | - Aneta D. Sabovljević
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
| | - Marko S. Sabovljević
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
- Department of Botany, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Šafárik University in Košice, Mánesova 23, 040 01 Košice, Slovakia
| | - Milorad M. Vujičić
- Institute of Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
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12
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Reboledo G, Agorio A, Vignale L, Alvarez A, Ponce De León I. The moss-specific transcription factor PpERF24 positively modulates immunity against fungal pathogens in Physcomitrium patens. FRONTIERS IN PLANT SCIENCE 2022; 13:908682. [PMID: 36186018 PMCID: PMC9520294 DOI: 10.3389/fpls.2022.908682] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
APETALA2/ethylene response factors (AP2/ERFs) transcription factors (TFs) have greatly expanded in land plants compared to algae. In angiosperms, AP2/ERFs play important regulatory functions in plant defenses against pathogens and abiotic stress by controlling the expression of target genes. In the moss Physcomitrium patens, a high number of members of the ERF family are induced during pathogen infection, suggesting that they are important regulators in bryophyte immunity. In the current study, we analyzed a P. patens pathogen-inducible ERF family member designated as PpERF24. Orthologs of PpERF24 were only found in other mosses, while they were absent in the bryophytes Marchantia polymorpha and Anthoceros agrestis, the vascular plant Selaginella moellendorffii, and angiosperms. We show that PpERF24 belongs to a moss-specific clade with distinctive amino acids features in the AP2 domain that binds to the DNA. Interestingly, all P. patens members of the PpERF24 subclade are induced by fungal pathogens. The function of PpERF24 during plant immunity was assessed by an overexpression approach and transcriptomic analysis. Overexpressing lines showed increased defenses to infection by the fungal pathogens Botrytis cinerea and Colletotrichum gloeosporioides evidenced by reduced cellular damage and fungal biomass compared to wild-type plants. Transcriptomic and RT-qPCR analysis revealed that PpERF24 positively regulates the expression levels of defense genes involved in transcriptional regulation, phenylpropanoid and jasmonate pathways, oxidative burst and pathogenesis-related (PR) genes. These findings give novel insights into potential mechanism by which PpERF24 increases plant defenses against several pathogens by regulating important players in plant immunity.
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Affiliation(s)
- Guillermo Reboledo
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Astrid Agorio
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Lucía Vignale
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Alfonso Alvarez
- Laboratorio de Fisiología Vegetal, Facultad de Ciencias, Centro de Investigaciones Nucleares, Universidad de la República, Montevideo, Uruguay
| | - Inés Ponce De León
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
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13
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Shinkawa H, Kajikawa M, Furuya T, Nishihama R, Tsukaya H, Kohchi T, Fukuzawa H. Protein Kinase MpYAK1 Is Involved in Meristematic Cell Proliferation, Reproductive Phase Change and Nutrient Signaling in the Liverwort Marchantia polymorpha. PLANT & CELL PHYSIOLOGY 2022; 63:1063-1077. [PMID: 35674121 DOI: 10.1093/pcp/pcac076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 05/09/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Plant growth and development are regulated by environmental factors, including nutrient availability and light conditions, via endogenous genetic signaling pathways. Phosphorylation-dependent protein modification plays a major role in the regulation of cell proliferation in stress conditions, and several protein kinases have been shown to function in response to nutritional status, including dual-specificity tyrosine phosphorylation-regulated kinases (DYRKs). Although DYRKs are widely conserved in eukaryotes, the physiological functions of DYRKs in land plants are still to be elucidated. In the liverwort Marchantia polymorpha, a model bryophyte, four putative genes encoding DYRK homologous proteins, each of which belongs to the subfamily yet another kinase 1 (Yak1), plant-specific DYRK, DYRK2, or pre-mRNA processing protein 4 kinase, were identified. MpYAK1-defective male and female mutant lines generated by the clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated nuclease 9 (Cas9) system showed smaller sizes of thalli than did the wild-type plants and repressed cell divisions in the apical notch regions. The Mpyak1 mutants developed rhizoids from gemmae in the gemma cup before release. The Mpyak1 lines developed sexual organs even in non-inductive short-day photoperiod conditions supplemented with far-red light. In nitrogen (N)-deficient conditions, rhizoid elongation was inhibited in the Mpyak1 mutants. In conditions of aeration with 0.08% CO2 (v/v) and N depletion, Mpyak1 mutants accumulated higher levels of sucrose and lower levels of starch compared to the wild type. Transcriptomic analyses revealed that the expression of peroxidase genes was differentially affected by MpYAK1. These results suggest that MpYAK1 is involved in the maintenance of plant growth and developmental responses to light conditions and nutrient signaling.
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Affiliation(s)
- Haruka Shinkawa
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502 Japan
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, 921-8836 Japan
| | - Masataka Kajikawa
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502 Japan
- Faculty of Biology-Oriented Science and Technology, Kindai University, Wakayama, 649-6493 Japan
| | - Tomoyuki Furuya
- Graduate School of Science, University of Tokyo, Tokyo, 113-0033 Japan
- College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, 525-8577 Japan
| | - Ryuichi Nishihama
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502 Japan
- Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba, 278-8510 Japan
| | - Hirokazu Tsukaya
- Graduate School of Science, University of Tokyo, Tokyo, 113-0033 Japan
| | - Takayuki Kohchi
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502 Japan
| | - Hideya Fukuzawa
- Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502 Japan
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14
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Valeeva LR, Dague AL, Hall MH, Tikhonova AE, Sharipova MR, Valentovic MA, Bogomolnaya LM, Shakirov EV. Antimicrobial Activities of Secondary Metabolites from Model Mosses. Antibiotics (Basel) 2022; 11:1004. [PMID: 35892395 PMCID: PMC9331938 DOI: 10.3390/antibiotics11081004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 02/06/2023] Open
Abstract
Plants synthetize a large spectrum of secondary metabolites with substantial structural and functional diversity, making them a rich reservoir of new biologically active compounds. Among different plant lineages, the evolutionarily ancient branch of non-vascular plants (Bryophytes) is of particular interest as these organisms produce many unique biologically active compounds with highly promising antibacterial properties. Here, we characterized antibacterial activity of metabolites produced by different ecotypes (strains) of the model mosses Physcomitrium patens and Sphagnum fallax. Ethanol and hexane moss extracts harbor moderate but unstable antibacterial activity, representing polar and non-polar intracellular moss metabolites, respectively. In contrast, high antibacterial activity that was relatively stable was detected in soluble exudate fractions of P. patens moss. Antibacterial activity levels in P. patens exudates significantly increased over four weeks of moss cultivation in liquid culture. Interestingly, secreted moss metabolites are only active against a number of Gram-positive, but not Gram-negative, bacteria. Size fractionation, thermostability and sensitivity to proteinase K assays indicated that the secreted bioactive compounds are relatively small (less than <10 kDa). Further analysis and molecular identification of antibacterial exudate components, combined with bioinformatic analysis of model moss genomes, will be instrumental in the identification of specific genes involved in the bioactive metabolite biosynthesis.
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Affiliation(s)
- Lia R. Valeeva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia; (L.R.V.); (A.E.T.); (M.R.S.)
| | - Ashley L. Dague
- Department of Biological Sciences, College of Science, Marshall University, Huntington, WV 25701, USA; (A.L.D.); (M.H.H.)
| | - Mitchell H. Hall
- Department of Biological Sciences, College of Science, Marshall University, Huntington, WV 25701, USA; (A.L.D.); (M.H.H.)
| | - Anastasia E. Tikhonova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia; (L.R.V.); (A.E.T.); (M.R.S.)
| | - Margarita R. Sharipova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia; (L.R.V.); (A.E.T.); (M.R.S.)
| | - Monica A. Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA;
| | - Lydia M. Bogomolnaya
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA;
| | - Eugene V. Shakirov
- Department of Biological Sciences, College of Science, Marshall University, Huntington, WV 25701, USA; (A.L.D.); (M.H.H.)
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA;
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15
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Reboledo G, Agorio A, Ponce De León I. Moss transcription factors regulating development and defense responses to stress. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:4546-4561. [PMID: 35167679 DOI: 10.1093/jxb/erac055] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Transcription factors control gene expression, leading to regulation of biological processes that determine plant development and adaptation to the environment. Land colonization by plants occurred 450-470 million years ago and was accompanied by an increase in the complexity of transcriptional regulation associated to transcription factor gene expansions. AP2/ERF, bHLH, MYB, NAC, GRAS, and WRKY transcription factor families increased in land plants compared with algae. In angiosperms, they play crucial roles in regulating plant growth and responses to environmental stressors. However, less information is available in bryophytes and only in a few cases is the functional role of moss transcription factors in stress mechanisms known. In this review, we discuss current knowledge of the transcription factor families involved in development and defense responses to stress in mosses and other bryophytes. By exploring and analysing the Physcomitrium patens public database and published transcriptional profiles, we show that a high number of AP2/ERF, bHLH, MYB, NAC, GRAS, and WRKY genes are differentially expressed in response to abiotic stresses and during biotic interactions. Expression profiles together with a comprehensive analysis provide insights into relevant transcription factors involved in moss defenses, and hint at distinct and conserved biological roles between bryophytes and angiosperms.
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Affiliation(s)
- Guillermo Reboledo
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Astrid Agorio
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Inés Ponce De León
- Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
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16
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Morales-Sánchez JÁM, Mark K, Souza JPS, Niinemets Ü. Desiccation-rehydration measurements in bryophytes: current status and future insights. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:4338-4361. [PMID: 35536655 DOI: 10.1093/jxb/erac172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 04/27/2022] [Indexed: 06/14/2023]
Abstract
Desiccation-rehydration experiments have been employed over the years to evaluate desiccation tolerance of bryophytes (Bryophyta, Marchantiophyta, and Anthocerotophyta). Researchers have applied a spectrum of protocols to induce desiccation and subsequent rehydration, and a wide variety of techniques have been used to study desiccation-dependent changes in bryophyte molecular, cellular, physiological, and structural traits, resulting in a multifaceted assortment of information that is challenging to synthesize. We analysed 337 desiccation-rehydration studies, providing information for 351 species, to identify the most frequent methods used, analyse the advances in desiccation studies over the years, and characterize the taxonomic representation of the species assessed. We observed certain similarities across methodologies, but the degree of convergence among the experimental protocols was surprisingly low. Out of 52 bryophyte orders, 40% have not been studied, and data are lacking for multiple remote or difficult to access locations. We conclude that for quantitative interspecific comparisons of desiccation tolerance, rigorous standardization of experimental protocols and measurement techniques, and simultaneous use of an array of experimental techniques are required for a mechanistic insight into the different traits modified in response to desiccation. New studies should also aim to fill gaps in taxonomic, ecological, and spatial coverage of bryophytes.
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Affiliation(s)
- José Ángel M Morales-Sánchez
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R. Kreutzwaldi 5, Tartu 51006, Estonia
| | - Kristiina Mark
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R. Kreutzwaldi 5, Tartu 51006, Estonia
| | - João Paulo S Souza
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R. Kreutzwaldi 5, Tartu 51006, Estonia
| | - Ülo Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr. R. Kreutzwaldi 5, Tartu 51006, Estonia
- Estonian Academy of Sciences, Kohtu 6, Tallinn 10130, Estonia
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17
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Dong XM, Pu XJ, Zhou SZ, Li P, Luo T, Chen ZX, Chen SL, Liu L. Orphan gene PpARDT positively involved in drought tolerance potentially by enhancing ABA response in Physcomitrium (Physcomitrella) patens. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 319:111222. [PMID: 35487672 DOI: 10.1016/j.plantsci.2022.111222] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 05/19/2023]
Abstract
Almost all genomes have orphan genes, the majority of which are not functionally annotated. There is growing evidence showed that orphan genes may play important roles in the environmental stress response of Physcomitrium patens. We identified PpARDT (ABA-responsive drought tolerance) as a moss-specific and ABA-responsive orphan gene in P. patens. PpARDT is mainly expressed during the gametophytic stage of the life cycle, and the expression was induced by different abiotic stresses. A PpARDT knockout (Ppardt) mutant showed reduced dehydration-rehydration tolerance, and the phenotype could be rescued by exogenous ABA. Meanwhile, transgenic Arabidopsis lines exhibiting heterologous expression of PpARDT were more sensitive to exogenous ABA than wild-type (Col-0) plants and showed enhanced drought tolerance. These indicate that PpARDT confers drought tolerance among land plants potentially by enhancing ABA response. Further, we identified genes encoding abscisic acid receptor PYR/PYL family proteins, and ADP-ribosylation factors (Arf) as hub genes associated with the Ppardt phenotype. Given the lineage-specific characteristics of PpARDT, our results provide insights into the roles of orphan gene in shaping lineage-specific adaptation possibly by recruiting common pre-existed pathway components.
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Affiliation(s)
- Xiu-Mei Dong
- Key Laboratory Dependent on for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Xiao-Jun Pu
- Key Laboratory Dependent on for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Shi-Zhao Zhou
- Key Laboratory Dependent on for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Ping Li
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China Ministry of Education, Southwest Forestry University, Kunming, 650201, China.
| | - Ting Luo
- Key Laboratory Dependent on for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Ze-Xi Chen
- Key Laboratory Dependent on for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Si-Lin Chen
- Key Laboratory Dependent on for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Li Liu
- Key Laboratory Dependent on for Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China; State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, Hubei University, Wuhan, Hubei, China.
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18
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Schumacher I, Menghini D, Ovinnikov S, Hauenstein M, Fankhauser N, Zipfel C, Hörtensteiner S, Aubry S. Evolution of chlorophyll degradation is associated with plant transition to land. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 109:1473-1488. [PMID: 34931727 PMCID: PMC9306834 DOI: 10.1111/tpj.15645] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 05/27/2023]
Abstract
Chlorophyll, the central pigment of photosynthesis, is highly photo‐active and degraded enzymatically during leaf senescence. Merging comparative genomics and metabolomics, we evaluate the extent to which the chlorophyll detoxification pathway has evolved in Viridiplantae. We argue that cytosolic detoxification of phyllobilins in particular was a critical process to the green lineage’s transition to land.
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Affiliation(s)
- Isabel Schumacher
- Department of Plant and Microbial BiologyUniversity of ZürichZürich8008Switzerland
| | - Damian Menghini
- Department of Plant and Microbial BiologyUniversity of ZürichZürich8008Switzerland
| | - Serguei Ovinnikov
- Department of Plant and Microbial BiologyUniversity of ZürichZürich8008Switzerland
| | - Mareike Hauenstein
- Department of Plant and Microbial BiologyUniversity of ZürichZürich8008Switzerland
| | - Niklaus Fankhauser
- Department of Plant and Microbial BiologyUniversity of ZürichZürich8008Switzerland
| | - Cyril Zipfel
- Department of Plant and Microbial BiologyUniversity of ZürichZürich8008Switzerland
| | - Stefan Hörtensteiner
- Department of Plant and Microbial BiologyUniversity of ZürichZürich8008Switzerland
| | - Sylvain Aubry
- Department of Plant and Microbial BiologyUniversity of ZürichZürich8008Switzerland
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19
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Wang Y, Zhai J, Qi Z, Liu W, Cui J, Zhang X, Bai S, Li L, Shui G, Cui S. The specific glycerolipid composition is responsible for maintaining the membrane stability of Physcomitrella patens under dehydration stress. JOURNAL OF PLANT PHYSIOLOGY 2022; 268:153590. [PMID: 34911032 DOI: 10.1016/j.jplph.2021.153590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Land colonization is a major event in plant evolution. Little is known about the evolutionary characteristics of lipids during this process. Here, we proved that Physcomitrella patens, a bryophyte that appeared in the early evolution of terrestrial plants, has short-term desiccation resistance. The maintenance of membrane integrity is related to its specific glycerolipid composition and key genes for lipid metabolism. We analyzed 414 types of lipid molecules, and found that phospholipids accounted for 61.7%, mainly PC and PI; glycolipids accounted for only 26.5%, with a special MGDG molecular map. The most abundant MDGD, that is, MGDG34:6, contained rare 15- and 19-carbon acyl chains; the level of neutral lipids was higher. This was consistent with the results observed by TEM, with fewer lamellae and obvious lipid droplets. Slight dehydration accumulated a large number of TAG molecules, and severe dehydration degraded phospholipids and caused membrane leakage, but PA and MGDG fluctuated less. The key genes of lipid metabolism, DGAT and PAP, were actively transcribed, suggesting that PA was one of the main DAG sources for TAG synthesis. This work proves that Physcomitrella patens adopts high-constitutive PC and PI similar to plant seeds, abundant TAG, and its own specific MGDG to resist extreme dehydration. This result provides a new insight into the lipid evolution of early terrestrial plants against unfavorable terrestrial environments.
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Affiliation(s)
- Yingchun Wang
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Jianan Zhai
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Zhenyu Qi
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Wanping Liu
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Jipeng Cui
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Xi Zhang
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Sulan Bai
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Li Li
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Suxia Cui
- College of Life Sciences, Capital Normal University, Beijing, 100048, China; Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China.
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20
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Arif MA, Top O, Csicsely E, Lichtenstern M, Beheshti H, Adjabi K, Frank W. DICER-LIKE1a autoregulation based on intronic microRNA processing is required for stress adaptation in Physcomitrium patens. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 109:227-240. [PMID: 34743365 DOI: 10.1111/tpj.15570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 10/27/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
The Physcomitrium patens DICER-LIKE1a (PpDCL1a) mRNA encoding the essential Dicer protein for microRNA (miRNA) biogenesis harbors an intronic miRNA (miR1047). An autoregulatory mechanism to control PpDCL1a abundance that is based on competitive processing of the intronic miRNA and proper PpDCL1a mRNA splicing has previously been proposed. If intron splicing occurs first the mRNA can be translated into the functional PpDCL1a protein, whereas the processing of the intronic miRNA catalyzed by PpDCL1a itself, prior to pre-mRNA splicing, generates a truncated transcript unable to produce a functional protein. This proposed autoregulation of DCL1 has not been functionally analyzed in any plant species, and the existence of this autoregulatory control is expected to have a general impact on the overall miRNA biogenesis pathway and the transcriptome that is under miRNA control. We abolished PpDCL1a autoregulatory feedback control by the precise deletion of the MIR1047-containing intron. The generated line displayed hypersensitivity to salt stress and hyposensitivity to the plant hormone ABA, accompanied by the disturbed expression of miRNAs and mRNAs, revealed by transcriptome analyses. The feedback control together with the phenotypic abnormalities and molecular changes in the intron-less line can be rescued by the re-insertion of a modified intron harboring a sequence-unrelated artificial miRNA. Our findings indicate the physiological importance of miR1047-based feedback control of PpDCL1a transcript abundance, which controls the expression of miRNAs, and their cognate target RNAs during salt stress adaptation, and suggests a key role for this autoregulation in the molecular adaptation of land plants to terrestrial habitats.
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Affiliation(s)
- M Asif Arif
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Großhaderner Straße 2-4, Planegg-Martinsried, 82152, Germany
| | - Oguz Top
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Großhaderner Straße 2-4, Planegg-Martinsried, 82152, Germany
| | - Erika Csicsely
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Großhaderner Straße 2-4, Planegg-Martinsried, 82152, Germany
| | - Myriam Lichtenstern
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Großhaderner Straße 2-4, Planegg-Martinsried, 82152, Germany
| | - Hossein Beheshti
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Großhaderner Straße 2-4, Planegg-Martinsried, 82152, Germany
| | - Kaoutar Adjabi
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Großhaderner Straße 2-4, Planegg-Martinsried, 82152, Germany
| | - Wolfgang Frank
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Großhaderner Straße 2-4, Planegg-Martinsried, 82152, Germany
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21
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Wang H, Liu S, Fan F, Yu Q, Zhang P. A Moss 2-Oxoglutarate/Fe(II)-Dependent Dioxygenases (2-ODD) Gene of Flavonoids Biosynthesis Positively Regulates Plants Abiotic Stress Tolerance. FRONTIERS IN PLANT SCIENCE 2022; 13:850062. [PMID: 35968129 PMCID: PMC9372559 DOI: 10.3389/fpls.2022.850062] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 06/21/2022] [Indexed: 05/14/2023]
Abstract
Flavonoids, the largest group of polyphenolic secondary metabolites present in all land plants, play essential roles in many biological processes and defense against abiotic stresses. In the flavonoid biosynthesis pathway, flavones synthase I (FNSI), flavanone 3-hydroxylase (F3H), flavonol synthase (FLS), and anthocyanidin synthase (ANS) all belong to 2-oxoglutarate/Fe(II)-dependent dioxygenases (2-ODDs) family, which catalyzes the critical oxidative reactions to form different flavonoid subgroups. Here, a novel 2-ODD gene was cloned from Antarctic moss Pohlia nutans (Pn2-ODD1) and its functions were investigated both in two model plants, Physcomitrella patens and Arabidopsis thaliana. Heterologous expression of Pn2-ODD1 increased the accumulation of anthocyanins and flavonol in Arabidopsis. Meanwhile, the transgenic P. patens and Arabidopsis with expressing Pn2-ODD1 exhibited enhanced tolerance to salinity and drought stresses, with larger gametophyte sizes, better seed germination, and longer root growth. Heterologous expression of Pn2-ODD1 in Arabidopsis also conferred the tolerance to UV-B radiation and oxidative stress by increasing antioxidant capacity. Therefore, we showed that Pn2-ODD1 participated in the accumulation of anthocyanins and flavonol in transgenic plants, and regulated the tolerance to abiotic stresses in plants, contributing to the adaptation of P. nutans to the polar environment.
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Affiliation(s)
- Huijuan Wang
- National Glycoengineering Research Center and School of Life Science, Shandong University, Qingdao, China
| | - Shenghao Liu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
| | - Fenghua Fan
- National Glycoengineering Research Center and School of Life Science, Shandong University, Qingdao, China
| | - Qian Yu
- National Glycoengineering Research Center and School of Life Science, Shandong University, Qingdao, China
| | - Pengying Zhang
- National Glycoengineering Research Center and School of Life Science, Shandong University, Qingdao, China
- Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Qingdao, China
- *Correspondence: Pengying Zhang
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22
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Ríos-Meléndez S, Valadez-Hernández E, Delgadillo C, Luna-Guevara ML, Martínez-Núñez MA, Sánchez-Pérez M, Martínez-Y-Pérez JL, Arroyo-Becerra A, Cárdenas L, Bibbins-Martínez M, Maldonado-Mendoza IE, Villalobos-López MA. Pseudocrossidium replicatum (Taylor) R.H. Zander is a fully desiccation-tolerant moss that expresses an inducible molecular mechanism in response to severe abiotic stress. PLANT MOLECULAR BIOLOGY 2021; 107:387-404. [PMID: 34189708 PMCID: PMC8648698 DOI: 10.1007/s11103-021-01167-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 06/10/2021] [Indexed: 05/04/2023]
Abstract
KEY MESSAGE The moss Pseudocrossidium replicatum is a desiccation-tolerant species that uses an inducible system to withstand severe abiotic stress in both protonemal and gametophore tissues. Desiccation tolerance (DT) is the ability of cells to recover from an air-dried state. Here, the moss Pseudocrossidium replicatum was identified as a fully desiccation-tolerant (FDT) species. Its gametophores rapidly lost more than 90% of their water content when exposed to a low-humidity atmosphere [23% relative humidity (RH)], but abscisic acid (ABA) pretreatment diminished the final water loss after equilibrium was reached. P. replicatum gametophores maintained good maximum photosystem II (PSII) efficiency (Fv/Fm) for up to two hours during slow dehydration; however, ABA pretreatment induced a faster decrease in the Fv/Fm. ABA also induced a faster recovery of the Fv/Fm after rehydration. Protein synthesis inhibitor treatment before dehydration hampered the recovery of the Fv/Fm when the gametophores were rehydrated after desiccation, suggesting the presence of an inducible protective mechanism that is activated in response to abiotic stress. This observation was also supported by accumulation of soluble sugars in gametophores exposed to ABA or NaCl. Exogenous ABA treatment delayed the germination of P. replicatum spores and induced morphological changes in protonemal cells that resembled brachycytes. Transcriptome analyses revealed the presence of an inducible molecular mechanism in P. replicatum protonemata that was activated in response to dehydration. This study is the first RNA-Seq study of the protonemal tissues of an FDT moss. Our results suggest that P. replicatum is an FDT moss equipped with an inducible molecular response that prepares this species for severe abiotic stress and that ABA plays an important role in this response.
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Affiliation(s)
- Selma Ríos-Meléndez
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, C.P. 90700, Tepetitla de Lardizábal, Tlaxcala, México
| | - Emmanuel Valadez-Hernández
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, C.P. 90700, Tepetitla de Lardizábal, Tlaxcala, México
| | - Claudio Delgadillo
- Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Maria L Luna-Guevara
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, C.P. 72000, Puebla, Puebla, México
| | - Mario A Martínez-Núñez
- UMDI-Sisal, Facultad de Ciencias, Universidad Nacional Autónoma de México, C.P. 97302, Mérida, Yucatán, México
| | - Mishael Sánchez-Pérez
- Unidad de Análisis Bioinformáticos, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, C.P. 62210, Cuernavaca, Morelos, México
| | - José L Martínez-Y-Pérez
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, C.P. 90210, Ixtacuixtla, Tlaxcala, México
| | - Analilia Arroyo-Becerra
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, C.P. 90700, Tepetitla de Lardizábal, Tlaxcala, México
| | - Luis Cárdenas
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, C.P. 62210, Cuernavaca, Morelos, México
| | - Martha Bibbins-Martínez
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, C.P. 90700, Tepetitla de Lardizábal, Tlaxcala, México
| | - Ignacio E Maldonado-Mendoza
- Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Unidad Sinaloa, Instituto Politécnico Nacional, C.P. 81049, Guasave, Sinaloa, México
| | - Miguel Angel Villalobos-López
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional, C.P. 90700, Tepetitla de Lardizábal, Tlaxcala, México.
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23
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Martínez-Cortés T, Pomar F, Novo-Uzal E. Evolutionary Implications of a Peroxidase with High Affinity for Cinnamyl Alcohols from Physcomitrium patens, a Non-Vascular Plant. PLANTS 2021; 10:plants10071476. [PMID: 34371679 PMCID: PMC8309402 DOI: 10.3390/plants10071476] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/15/2021] [Accepted: 07/15/2021] [Indexed: 01/15/2023]
Abstract
Physcomitrium (Physcomitrella) patens is a bryophyte highly tolerant to different stresses, allowing survival when water supply is a limiting factor. This moss lacks a true vascular system, but it has evolved a primitive water-conducting system that contains lignin-like polyphenols. By means of a three-step protocol, including ammonium sulfate precipitation, adsorption chromatography on phenyl Sepharose and cationic exchange chromatography on SP Sepharose, we were able to purify and further characterize a novel class III peroxidase, PpaPrx19, upregulated upon salt and H2O2 treatments. This peroxidase, of a strongly basic nature, shows surprising homology to angiosperm peroxidases related to lignification, despite the lack of true lignins in P. patens cell walls. Moreover, PpaPrx19 shows catalytic and kinetic properties typical of angiosperm peroxidases involved in oxidation of monolignols, being able to efficiently use hydroxycinnamyl alcohols as substrates. Our results pinpoint the presence in P. patens of peroxidases that fulfill the requirements to be involved in the last step of lignin biosynthesis, predating the appearance of true lignin.
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Affiliation(s)
- Teresa Martínez-Cortés
- Grupo de Investigación en Biología Evolutiva, Centro de Investigaciones Científicas Avanzadas, Universidade da Coruña, 15071 A Coruña, Spain; (T.M.-C.); (F.P.)
| | - Federico Pomar
- Grupo de Investigación en Biología Evolutiva, Centro de Investigaciones Científicas Avanzadas, Universidade da Coruña, 15071 A Coruña, Spain; (T.M.-C.); (F.P.)
| | - Esther Novo-Uzal
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal
- Correspondence:
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24
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Koochak H, Ludwig-Müller J. Physcomitrium patens Mutants in Auxin Conjugating GH3 Proteins Show Salt Stress Tolerance but Auxin Homeostasis Is Not Involved in Regulation of Oxidative Stress Factors. PLANTS 2021; 10:plants10071398. [PMID: 34371602 PMCID: PMC8309278 DOI: 10.3390/plants10071398] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 11/23/2022]
Abstract
Salt stress is among the most challenging abiotic stress situations that a plant can experience. High salt levels do not only occur in areas with obvious salty water, but also during drought periods where salt accumulates in the soil. The moss Physcomitrium patens became a model for studying abiotic stress in non-vascular plants. Here, we show that high salt concentrations can be tolerated in vitro, and that auxin homeostasis is connected to the performance of P. patens under these stress conditions. The auxin levels can be regulated by conjugating IAA to amino acids by two members of the family of GH3 protein auxin amino acid-synthetases that are present in P. patens. Double GH3 gene knock-out mutants were more tolerant to high salt concentrations. Furthermore, free IAA levels were differentially altered during the time points investigated. Since, among the mutant lines, an increase in IAA on at least one NaCl concentration tested was observed, we treated wild type (WT) plants concomitantly with NaCl and IAA. This experiment showed that the salt tolerance to 100 mM NaCl together with 1 and 10 µM IAA was enhanced during the earlier time points. This is an additional indication that the high IAA levels in the double GH3-KO lines could be responsible for survival in high salt conditions. While the high salt concentrations induced several selected stress metabolites including phenols, flavonoids, and enzymes such as peroxidase and superoxide dismutase, the GH3-KO genotype did not generally participate in this upregulation. While we showed that the GH3 double KO mutants were more tolerant of high (250 mM) NaCl concentrations, the altered auxin homeostasis was not directly involved in the upregulation of stress metabolites.
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Affiliation(s)
- Haniyeh Koochak
- Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany;
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164-5910, USA
| | - Jutta Ludwig-Müller
- Institut für Botanik, Technische Universität Dresden, 01062 Dresden, Germany;
- Correspondence:
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25
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Chamorro-Flores A, Tiessen-Favier A, Gregorio-Jorge J, Villalobos-López MA, Guevara-García ÁA, López-Meyer M, Arroyo-Becerra A. High levels of glucose alter Physcomitrella patens metabolism and trigger a differential proteomic response. PLoS One 2020; 15:e0242919. [PMID: 33275616 PMCID: PMC7717569 DOI: 10.1371/journal.pone.0242919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 11/11/2020] [Indexed: 11/18/2022] Open
Abstract
Sugars act not only as substrates for plant metabolism, but also have a pivotal role in signaling pathways. Glucose signaling has been widely studied in the vascular plant Arabidopsis thaliana, but it has remained unexplored in non-vascular species such as Physcomitrella patens. To investigate P. patens response to high glucose treatment, we explored the dynamic changes in metabolism and protein population by applying a metabolomic fingerprint analysis (DIESI-MS), carbohydrate and chlorophyll quantification, Fv/Fm determination and label-free untargeted proteomics. Glucose feeding causes specific changes in P. patens metabolomic fingerprint, carbohydrate contents and protein accumulation, which is clearly different from those of osmotically induced responses. The maximal rate of PSII was not affected although chlorophyll decreased in both treatments. The biological process, cellular component, and molecular function gene ontology (GO) classifications of the differentially expressed proteins indicate the translation process is the most represented category in response to glucose, followed by photosynthesis, cellular response to oxidative stress and protein refolding. Importantly, although several proteins have high fold changes, these proteins have no predicted identity. The most significant discovery of our study at the proteome level is that high glucose increase abundance of proteins related to the translation process, which was not previously evidenced in non-vascular plants, indicating that regulation by glucose at the translational level is a partially conserved response in both plant lineages. To our knowledge, this is the first time that metabolome fingerprint and proteomic analyses are performed after a high sugar treatment in non-vascular plants. These findings unravel evolutionarily shared and differential responses between vascular and non-vascular plants.
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Affiliation(s)
- Alejandra Chamorro-Flores
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional (CIBA-IPN), Tepetitla de Lardizábal, Tlaxcala, México
| | - Axel Tiessen-Favier
- Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados (CINVESTAV Unidad Irapuato), Irapuato, Guanajuato, México
| | - Josefat Gregorio-Jorge
- Consejo Nacional de Ciencia y Tecnología, Instituto Politécnico Nacional-Centro de Investigación en Biotecnología Aplicada (CIBA-IPN), Ciudad de México, México
| | - Miguel Angel Villalobos-López
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional (CIBA-IPN), Tepetitla de Lardizábal, Tlaxcala, México
| | - Ángel Arturo Guevara-García
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México (IBT-UNAM), Cuernavaca, Morelos, México
| | - Melina López-Meyer
- Departamento de Biotecnología Agrícola, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Instituto Politécnico Nacional (CIIDIR-IPN Unidad Sinaloa), Guasave, Sinaloa, México
| | - Analilia Arroyo-Becerra
- Laboratorio de Genómica Funcional y Biotecnología de Plantas, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional (CIBA-IPN), Tepetitla de Lardizábal, Tlaxcala, México
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26
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Liu Y, Gong Q, He J, Sun X, Li X, Zhao S, Meng Q, Lin H, Zhou H. PpAOX regulates ER stress tolerance in Physcomitrella patens. JOURNAL OF PLANT PHYSIOLOGY 2020; 251:153218. [PMID: 32559711 DOI: 10.1016/j.jplph.2020.153218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
Severe environments disturb the folding or assembly of newly synthesized proteins, resulting in accumulation of misfolded or unfolded proteins in the endoplasmic reticulum (ER) as well as cytotoxic aggregation of abnormal proteins. Therefore, ER stress is evoked due to disturbed ER homeostasis. Alternative oxidase (AOX) plays an important role in coping with various abiotic stresses and plant growth. Our previous study has reported that PpAOX is involved in the regulation of salt tolerance in moss Physcomitrella patens (P. patens), but its biological functions in modulating ER stress remain unknown. Here we report that the gametophyte of P. patens displays severe growth inhibition and developmental deficiency under tunicamycin (Tm, an elicitor of ER stress)-induced ER stress conditions. PpAOX and selected ER stress response-like genes in P. patens were induced under Tm treatment. PpAOX knockout (PpAOX KO) plants exhibited decreased resistance to Tm-induced ER stress, whereas PpAOX-overexpressing lines (PpAOX OX) plants were more tolerant to Tm-induced ER stress. Data showed that PpAOX contributes to redox homeostasis under Tm treatment. In addition, we observed that PpAOX completely restores the Tm-sensitive phenotype of Arabidopsis AOX1a mutant (Ataox1a). Taken together, our work reveals a functional link between PpAOX and ER stress tolerance regulation in P. patens.
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Affiliation(s)
- Yunhong Liu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Qianyuan Gong
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Jiaxian He
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Xia Sun
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Xiaochuan Li
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Shuangshuang Zhao
- Key Laboratory of Plant Stress, Life Science College, Shandong Normal University, Jinan 250014, China
| | - Qingwei Meng
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Tai'an, 271018, China
| | - Honghui Lin
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Huapeng Zhou
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China.
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27
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Ruibal C, Castro A, Fleitas AL, Quezada J, Quero G, Vidal S. A Chloroplast COR413 Protein From Physcomitrella patens Is Required for Growth Regulation Under High Light and ABA Responses. FRONTIERS IN PLANT SCIENCE 2020; 11:845. [PMID: 32636864 PMCID: PMC7317016 DOI: 10.3389/fpls.2020.00845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 05/26/2020] [Indexed: 05/17/2023]
Abstract
COR413 genes belong to a poorly characterized group of plant-specific cold-regulated genes initially identified as part of the transcriptional activation machinery of plants during cold acclimation. They encode multispanning transmembrane proteins predicted to target the plasma membrane or the chloroplast inner membrane. Despite being ubiquitous throughout the plant kingdom, little is known about their biological function. In this study, we used reverse genetics to investigate the relevance of a predicted chloroplast localized COR413 protein (PpCOR413im) from the moss Physcomitrella patens in developmental and abiotic stress responses. Expression of PpCOR413im was strongly induced by abscisic acid (ABA) and by various environmental stimuli, including low temperature, hyperosmosis, salinity and high light. In vivo subcellular localization of PpCOR413im-GFP fusion protein revealed that this protein is localized in chloroplasts, confirming the in silico predictions. Loss-of-function mutants of PpCOR413im exhibited growth and developmental alterations such as growth retardation, reduced caulonema formation and hypersensitivity to ABA. Mutants also displayed altered photochemistry under various abiotic stresses, including dehydration and low temperature, and exhibited a dramatic growth inhibition upon exposure to high light. Disruption of PpCOR413im also caused altered chloroplast ultrastructure, increased ROS accumulation, and enhanced starch and sucrose levels under high light or after ABA treatment. In addition, loss of PpCOR413im affected both nuclear and chloroplast gene expression in response to ABA and high light, suggesting a role for this gene downstream of ABA in the regulation of growth and environmental stress responses. Developmental alterations exhibited by PpCOR413im knockout mutants had remarkable similarities to those exhibited by hxk1, a mutant lacking a major chloroplastic hexokinase, an enzyme involved in energy homeostasis. Based on these findings, we propose that PpCOR413im is involved in coordinating energy metabolism with ABA-mediated growth and developmental responses.
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Affiliation(s)
- Cecilia Ruibal
- Laboratorio de Biología Molecular Vegetal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Alexandra Castro
- Laboratorio de Biología Molecular Vegetal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Andrea L. Fleitas
- Laboratorio de Biología Molecular Vegetal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Jorge Quezada
- Unidad de Biotecnología Vegetal, Instituto de Biología Molecular y Biotecnología, Carrera de Biología – Facultad de Ciencias Puras y Naturales, Universidad Mayor de San Andrés, La Paz, Bolivia
| | - Gastón Quero
- Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay
| | - Sabina Vidal
- Laboratorio de Biología Molecular Vegetal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
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Caine RS, Chater CCC, Fleming AJ, Gray JE. Stomata and Sporophytes of the Model Moss Physcomitrium patens. FRONTIERS IN PLANT SCIENCE 2020; 11:643. [PMID: 32523599 PMCID: PMC7261847 DOI: 10.3389/fpls.2020.00643] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/27/2020] [Indexed: 05/04/2023]
Abstract
Mosses are an ancient land plant lineage and are therefore important in studying the evolution of plant developmental processes. Here, we describe stomatal development in the model moss species Physcomitrium patens (previously known as Physcomitrella patens) over the duration of sporophyte development. We dissect the molecular mechanisms guiding cell division and fate and highlight how stomatal function might vary under different environmental conditions. In contrast to the asymmetric entry divisions described in Arabidopsis thaliana, moss protodermal cells can enter the stomatal lineage directly by expanding into an oval shaped guard mother cell (GMC). We observed that when two early stage P. patens GMCs form adjacently, a spacing division can occur, leading to separation of the GMCs by an intervening epidermal spacer cell. We investigated whether orthologs of Arabidopsis stomatal development regulators are required for this spacing division. Our results indicated that bHLH transcription factors PpSMF1 and PpSCRM1 are required for GMC formation. Moreover, the ligand and receptor components PpEPF1 and PpTMM are also required for orientating cell divisions and preventing single or clustered early GMCs from developing adjacent to one another. The identification of GMC spacing divisions in P. patens raises the possibility that the ability to space stomatal lineage cells could have evolved before mosses diverged from the ancestral lineage. This would have enabled plants to integrate stomatal development with sporophyte growth and could underpin the adoption of multiple bHLH transcription factors and EPF ligands to more precisely control stomatal patterning in later diverging plant lineages. We also observed that when P. patens sporophyte capsules mature in wet conditions, stomata are typically plugged whereas under drier conditions this is not the case; instead, mucilage drying leads to hollow sub-stomatal cavities. This appears to aid capsule drying and provides further evidence for early land plant stomata contributing to capsule rupture and spore release.
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Affiliation(s)
- Robert S. Caine
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
| | - Caspar C. C. Chater
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
| | - Andrew J. Fleming
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom
| | - Julie E. Gray
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
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Hyoung S, Cho SH, Chung JH, So WM, Cui MH, Shin JS. Cytokinin oxidase PpCKX1 plays regulatory roles in development and enhances dehydration and salt tolerance in Physcomitrella patens. PLANT CELL REPORTS 2020; 39:419-430. [PMID: 31863135 DOI: 10.1007/s00299-019-02500-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 12/09/2019] [Indexed: 05/07/2023]
Abstract
PpCKX1 localizes to vacuoles and is dominantly expressed in the stem cells. PpCKX1 regulates developmental changes with increased growth of the rhizoid and enhances dehydration and salt tolerance. Cytokinins (CKs) are plant hormones that regulate plant development as well as many physiological processes, such as cell division, leaf senescence, control of shoot/root ratio, and reproductive competence. Cytokinin oxidases/dehydrogenases (CKXs) control CK concentrations by degradation, and thereby influence plant growth and development. In the moss Physcomitrella patens, an evolutionarily early divergent plant, we identified six putative CKXs that, by phylogenetic analysis, form a monophyletic clade. We also observed that ProPpCKX1:GUS is expressed specifically in the stem cells and surrounding cells and that CKX1 localizes to vacuoles, as indicated by Pro35S:PpCKX1-smGFP. Under normal growth conditions, overexpression of PpCKX1 caused many phenotypic changes at different developmental stages, and we suspected that increased growth of the rhizoid could affect those changes. In addition, we present evidence that the PpCKX1-overexpressor plants show enhanced dehydration and salt stress tolerance. Taken together, we suggest that PpCKX1 plays regulatory roles in development and adaptation to abiotic stresses in this evolutionarily early land plant species.
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Affiliation(s)
- Sujin Hyoung
- Division of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Sung Hyun Cho
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Joo Hee Chung
- Seoul Center, Korea Basic Science Institute, Seoul, 02841, Korea
| | - Won Mi So
- Division of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Mei Hua Cui
- Shanghai Institute for Advanced Immunochemical Studies (SIAIS), Shanghai Tech University, Shanghai, China
| | - Jeong Sheop Shin
- Division of Life Sciences, Korea University, Seoul, 02841, Korea.
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Elzanati O, Mouzeyar S, Roche J. Dynamics of the Transcriptome Response to Heat in the Moss, Physcomitrella patens. Int J Mol Sci 2020; 21:E1512. [PMID: 32098429 PMCID: PMC7073223 DOI: 10.3390/ijms21041512] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/10/2020] [Accepted: 02/19/2020] [Indexed: 01/07/2023] Open
Abstract
Thermal stress negatively impacts crop yields, and as the overall temperature of the earth's atmosphere is gradually increasing, the identification of the temperature transduction pathway of the heat signal is essential in developing new strategies in order to adapt plant breeding to warmer climates. Heat stress damages the molecular structures and physiological processes in plants in proportion to the level and duration of the stress, which leads to different types of responses. In general, plants respond more efficiently when they are first subjected to a moderate temperature increase before being subjected to a higher temperature stress. This adaptive response is called the acclimation period and has been investigated in several plant species. However, there is a lack of information on the dynamic of the Heat Shock Response (HSR) over a continuous period of temperature rise without an acclimation period. In this paper, we investigated the effects of mild (30 °C) and high (37 °C) continuous heat stress over a 24-h period. Through RNA-Seq analysis, we assessed the remodeling of the transcriptome in the moss Physcomitrella patens. Our results showed that the 30 °C treatment particularly affected the expression of a few genes at 1 and 24 h, suggesting a biphasic response. Up-regulated genes at 1 h encode mainly HSR proteins (protein folding and endoplasmic reticulum stress), indicating an early heat response; while the up-regulated genes at 24 h belong to the thiamine biosynthesis pathway. In contrast, the genes involved in photosynthesis and carbon partitioning were repressed by this treatment. Under a higher temperature stress (37 °C), the induction of the HSR occurred rapidly (1 h) and was then attenuated throughout the time points investigated. A network approach (Weighted Gene Correlation Network Analysis, WGCNA) was used to identify the groups of genes expressing similar profiles, highlighting a HsfA1E binding motif within the promoters of some unrelated genes which displayed rapid and transient heat-activation. Therefore, it could be suggested that these genes could be direct targets of activation by a HsfA1E transcription factors.
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Affiliation(s)
| | | | - Jane Roche
- Université Clermont Auvergne, INRAE, GDEC, Campus Universitaire des Cézeaux, 1 Impasse Amélie Murat, TSA 60026, CEDEX 63178 Aubiere, France; (O.E.); (S.M.)
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Chen L, Bao F, Tang S, Zuo E, Lv Q, Zhang D, Hu Y, Wang X, He Y. PpAKR1A, a Novel Aldo-Keto Reductase from Physcomitrella Patens, Plays a Positive Role in Salt Stress. Int J Mol Sci 2019; 20:ijms20225723. [PMID: 31739643 PMCID: PMC6888457 DOI: 10.3390/ijms20225723] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/11/2019] [Accepted: 11/11/2019] [Indexed: 12/30/2022] Open
Abstract
The moss Physcomitrella patens is tolerant of highly saline environments. In plants, salinity stress may induce the production of toxic reactive carbonyl species (RCS) and oxidative damage. Aldo-keto reductases (AKRs) are a large group of NADP-dependent oxidoreductases involved in RCS detoxification. However, many members in this superfamily remain uncharacterized. In this study, we cloned and characterised a putative AKR1 from P. patens, named PpAKR1A. Notably, the transcription level of PpAKR1A was induced by salt and methylglyoxal (MG) stress, and the recombinant PpAKR1A protein catalysed the reduction of toxic aldehydes. PpAKR1A knockout mutants of P. patens (ppakr1a) were sensitive to NaCl and MG treatment, as indicated by much lower concentrations of chlorophyll and much higher concentrations of MG and H2O2 than those in WT plants. Meanwhile, ppakr1a plants exhibited decreases in the MG-reducing activity and reactive oxygen species-scavenging ability in response to salt stress, possibly due to decreases in the activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD). Our results indicate that PpAKR1A is an aldo-keto reductase that detoxifies MG and thus plays an important role in salt stress tolerance in P. patens.
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Affiliation(s)
- Lu Chen
- College of Life Sciences, Capital Normal University, Beijing 100048, China; (L.C.); (F.B.); (S.T.); (E.Z.); (Q.L.); (D.Z.); (Y.H.)
| | - Fang Bao
- College of Life Sciences, Capital Normal University, Beijing 100048, China; (L.C.); (F.B.); (S.T.); (E.Z.); (Q.L.); (D.Z.); (Y.H.)
| | - Shuxuan Tang
- College of Life Sciences, Capital Normal University, Beijing 100048, China; (L.C.); (F.B.); (S.T.); (E.Z.); (Q.L.); (D.Z.); (Y.H.)
| | - Enhui Zuo
- College of Life Sciences, Capital Normal University, Beijing 100048, China; (L.C.); (F.B.); (S.T.); (E.Z.); (Q.L.); (D.Z.); (Y.H.)
| | - Qiang Lv
- College of Life Sciences, Capital Normal University, Beijing 100048, China; (L.C.); (F.B.); (S.T.); (E.Z.); (Q.L.); (D.Z.); (Y.H.)
| | - Dongyang Zhang
- College of Life Sciences, Capital Normal University, Beijing 100048, China; (L.C.); (F.B.); (S.T.); (E.Z.); (Q.L.); (D.Z.); (Y.H.)
| | - Yong Hu
- College of Life Sciences, Capital Normal University, Beijing 100048, China; (L.C.); (F.B.); (S.T.); (E.Z.); (Q.L.); (D.Z.); (Y.H.)
| | - Xiaoqin Wang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing University of Agriculture, Beijing 102206, China
- Correspondence: (X.W.); (Y.H.); Tel.: +86-10-68903089 (Y.H.)
| | - Yikun He
- College of Life Sciences, Capital Normal University, Beijing 100048, China; (L.C.); (F.B.); (S.T.); (E.Z.); (Q.L.); (D.Z.); (Y.H.)
- Correspondence: (X.W.); (Y.H.); Tel.: +86-10-68903089 (Y.H.)
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Rathnayake KN, Nelson S, Seeve C, Oliver MJ, Koster KL. Acclimation and endogenous abscisic acid in the moss Physcomitrella patens during acquisition of desiccation tolerance. PHYSIOLOGIA PLANTARUM 2019; 167:317-329. [PMID: 30525218 DOI: 10.1111/ppl.12892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/26/2018] [Accepted: 11/29/2018] [Indexed: 05/21/2023]
Abstract
The moss Physcomitrella patens has been used as a model organism to study the induction of desiccation tolerance (DT), but links between dehydration rate, the accumulation of endogenous abscisic acid (ABA) and DT remain unclear. In this study, we show that prolonged acclimation of P. patens at 89% relative humidity (RH) [-16 MPa] can induce tolerance of desiccation at 33% RH (-153 MPa) in both protonema and gametophore stages. During acclimation, significant endogenous ABA accumulation occurred after 1 day in gametophores and after 2 days in protonemata. Physcomitrella patens expressing the ABA-inducible EARLY METHIONINE promoter fused to a cyan fluorescent protein (CFP) reporter gene revealed a mostly uniform distribution of the CFP increasing throughout the tissues during acclimation. DT was measured by day 6 of acclimation in gametophores, but not until 9 days of acclimation for protonemata. These results suggest that endogenous ABA accumulating when moss cells experience moderate water loss requires sufficient time to induce the changes that permit cells to survive more severe desiccation. These results provide insight for ongoing studies of how acclimation induces metabolic changes to enable DT in P. patens.
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Affiliation(s)
- Kumudu N Rathnayake
- Department of Biology, University of South Dakota, Vermillion, SD, 57069, USA
| | - Sven Nelson
- U.S. Department of Agriculture, Agricultural Research Service, Plant Genetics Research Unit, University of Missouri, Columbia, MO, 65211, USA
| | - Candace Seeve
- U.S. Department of Agriculture, Agricultural Research Service, Plant Genetics Research Unit, University of Missouri, Columbia, MO, 65211, USA
| | - Melvin J Oliver
- U.S. Department of Agriculture, Agricultural Research Service, Plant Genetics Research Unit, University of Missouri, Columbia, MO, 65211, USA
| | - Karen L Koster
- Department of Biology, University of South Dakota, Vermillion, SD, 57069, USA
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He J, Li P, Huo H, Liu L, Tang T, He M, Huang J, Liu L. Heterologous expression of HpBHY and CrBKT increases heat tolerance in Physcomitrella patens. PLANT DIVERSITY 2019; 41:266-274. [PMID: 31528786 PMCID: PMC6742491 DOI: 10.1016/j.pld.2019.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/31/2019] [Accepted: 04/01/2019] [Indexed: 05/27/2023]
Abstract
Heat stress can restrict plant growth, development, and crop yield. As essential plant antioxidants, carotenoids play significant roles in plant stress resistance. β-carotene hydroxylase (BHY) and β-carotene ketolase (BKT), which catalyze the conversions of β-carotene to zeaxanthin and β-carotene to canthaxanthin, respectively, are key enzymes in the carotenoid biosynthetic pathway, but little is known about their potential functions in stress resistance. Here, we investigated the roles of β-carotene hydroxylase and β-carotene ketolase during heat stress in Physcomitrella patens through expressing a β-carotene ketolase gene from Chlamydomonas reinhardtii (CrBKT) and a β-carotene hydroxylase gene from Haematococcus pluvialis (HpBHY) in the moss P. patens. In transgenic moss expressing these genes, carotenoids content increased (especially lutein content), and heat stress tolerance increased, with reduced leafy tissue necrosis. To investigate the mechanism of this heat stress resistance, we measured various physiological indicators and found a lower malondialdehyde level, higher peroxidase and superoxide dismutase activities, and higher endogenous abscisic acid and salicylate content in the transgenic plants in response to high-temperature stress. These results demonstrate that CrBKT and HpBHY increase plant heat stress resistance through the antioxidant and damage repair metabolism, which is related to abscisic acid and salicylate signaling.
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Affiliation(s)
- Jianfang He
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ping Li
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Heqiang Huo
- Mid-Florida Research and Education Center, Department of Environmental Horticulture, University of Florida, FL, 32703, USA
| | - Lina Liu
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ting Tang
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
| | - Mingxia He
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
| | - Junchao Huang
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
| | - Li Liu
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
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Wu G, Li S, Li X, Liu Y, Zhao S, Liu B, Zhou H, Lin H. A Functional Alternative Oxidase Modulates Plant Salt Tolerance in Physcomitrella patens. PLANT & CELL PHYSIOLOGY 2019; 60:1829-1841. [PMID: 31119292 DOI: 10.1093/pcp/pcz099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 05/14/2019] [Indexed: 05/13/2023]
Abstract
Alternative oxidase (AOX) has been reported to be involved in mitochondrial function and redox homeostasis, thus playing an essential role in plant growth as well as stress responses. However, its biological functions in nonseed plants have not been well characterized. Here, we report that AOX participates in plant salt tolerance regulation in moss Physcomitrella patens (P. patens). AOX is highly conserved and localizes to mitochondria in P. patens. We observed that PpAOX rescued the impaired cyanide (CN)-resistant alternative (Alt) respiratory pathway in Arabidopsis thaliana (Arabidopsis) aox1a mutant. PpAOX transcription and Alt respiration were induced upon salt stress in P. patens. Using homologous recombination, we generated PpAOX-overexpressing lines (PpAOX OX). PpAOX OX plants exhibited higher Alt respiration and lower total reactive oxygen species accumulation under salt stress condition. Strikingly, we observed that PpAOX OX plants displayed decreased salt tolerance. Overexpression of PpAOX disturbed redox homeostasis in chloroplasts. Meanwhile, chloroplast structure was adversely affected in PpAOX OX plants in contrast to wild-type (WT) P. patens. We found that photosynthetic activity in PpAOX OX plants was also lower compared with that in WT. Together, our work revealed that AOX participates in plant salt tolerance in P. patens and there is a functional link between mitochondria and chloroplast under challenging conditions.
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Affiliation(s)
- Guochun Wu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Sha Li
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Xiaochuan Li
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yunhong Liu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Shuangshuang Zhao
- Key Laboratory of Plant Stress, Life Science College, Shandong Normal University, Jinan, China
| | - Baohui Liu
- School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Huapeng Zhou
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Honghui Lin
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
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Arif MA, Hiss M, Tomek M, Busch H, Meyberg R, Tintelnot S, Reski R, Rensing SA, Frank W. ABA-Induced Vegetative Diaspore Formation in Physcomitrella patens. FRONTIERS IN PLANT SCIENCE 2019; 10:315. [PMID: 30941155 PMCID: PMC6433873 DOI: 10.3389/fpls.2019.00315] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 02/26/2019] [Indexed: 05/08/2023]
Abstract
The phytohormone abscisic acid (ABA) is a pivotal regulator of gene expression in response to various environmental stresses such as desiccation, salt and cold causing major changes in plant development and physiology. Here we show that in the moss Physcomitrella patens exogenous application of ABA triggers the formation of vegetative diaspores (brachycytes or brood cells) that enable plant survival in unfavorable environmental conditions. Such diaspores are round-shaped cells characterized by the loss of the central vacuole, due to an increased starch and lipid storage preparing these cells for growth upon suitable environmental conditions. To gain insights into the gene regulation underlying these developmental and physiological changes, we analyzed early transcriptome changes after 30, 60, and 180 min of ABA application and identified 1,030 differentially expressed genes. Among these, several groups can be linked to specific morphological and physiological changes during diaspore formation, such as genes involved in cell wall modifications. Furthermore, almost all members of ABA-dependent signaling and regulation were transcriptionally induced. Network analysis of transcription-associated genes revealed a large overlap of our study with ABA-dependent regulation in response to dehydration, cold stress, and UV-B light, indicating a fundamental function of ABA in diverse stress responses in moss. We also studied the evolutionary conservation of ABA-dependent regulation between moss and the seed plant Arabidopsis thaliana pointing to an early evolution of ABA-mediated stress adaptation during the conquest of the terrestrial habitat by plants.
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Affiliation(s)
- M. Asif Arif
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Planegg-Martinsried, Germany
| | - Manuel Hiss
- Plant Cell Biology, Faculty of Biology, University of Marburg, Marburg, Germany
| | - Marta Tomek
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Hauke Busch
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Rabea Meyberg
- Plant Cell Biology, Faculty of Biology, University of Marburg, Marburg, Germany
| | - Stefanie Tintelnot
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Ralf Reski
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
| | - Stefan A. Rensing
- Plant Cell Biology, Faculty of Biology, University of Marburg, Marburg, Germany
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
- *Correspondence: Stefan A. Rensing, Wolfgang Frank,
| | - Wolfgang Frank
- Plant Molecular Cell Biology, Department Biology I, Ludwig-Maximilians-Universität München, LMU Biocenter, Planegg-Martinsried, Germany
- *Correspondence: Stefan A. Rensing, Wolfgang Frank,
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Arif MA, Alseekh S, Harb J, Fernie A, Frank W. Abscisic acid, cold and salt stimulate conserved metabolic regulation in the moss Physcomitrella patens. PLANT BIOLOGY (STUTTGART, GERMANY) 2018; 20:1014-1022. [PMID: 29943488 DOI: 10.1111/plb.12871] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/22/2018] [Indexed: 05/08/2023]
Abstract
Salt and cold are major abiotic stresses that have adverse effects on plant growth and development. To cope with these stresses and their detrimental effects plants have evolved several metabolic, biochemical and physiological processes that are mainly triggered and mediated by the plant hormone abscisic acid (ABA). To elucidate the metabolic responses of the moss Physcomitrella patens, which serves as a model plant for abiotic stress adaptation, we performed GC-MS-based metabolic profiling of plants challenged for 5 and 28 h with either salt, cold or ABA. Our results indicate significant changes in the accumulation of several sugars including maltose, isomaltose and trehalose, amino acids including arginine, histidine, ornithine, tryptophan and tyrosine, and organic acids mainly citric acid and malonic acid. The metabolic responses provoked by ABA, cold and salt show considerable similarities. The accumulation of certain metabolites positively correlates with gene expression data whereas some metabolites do not show correlation with cognate transcript abundance. To place our results into an evolutionary context we compared the ABA- and stress-induced metabolic changes in moss to available metabolic profiles of the seed plant Arabidopsis thaliana. We detected considerable conservation between the species, indicating early evolution of stress-associated metabolic adaptations that probably occurred at the plant water-to-land transition.
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Affiliation(s)
- M A Arif
- Plant Molecular Cell Biology, Department Biology I, Ludwig Maximilian University of Munich, LMU Biocenter, Planegg-Martinsried, Munich, Germany
| | - S Alseekh
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - J Harb
- Department of Biology and Biochemistry, Birzeit University, Birzeit, West Bank, Palestine
| | - A Fernie
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - W Frank
- Plant Molecular Cell Biology, Department Biology I, Ludwig Maximilian University of Munich, LMU Biocenter, Planegg-Martinsried, Munich, Germany
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Amagai A, Honda Y, Ishikawa S, Hara Y, Kuwamura M, Shinozawa A, Sugiyama N, Ishihama Y, Takezawa D, Sakata Y, Shinozaki K, Umezawa T. Phosphoproteomic profiling reveals ABA-responsive phosphosignaling pathways in Physcomitrella patens. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 94:699-708. [PMID: 29575231 DOI: 10.1111/tpj.13891] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 02/09/2018] [Accepted: 02/19/2018] [Indexed: 05/24/2023]
Abstract
Abscisic acid (ABA) and its signaling system are important for land plants to survive in terrestrial conditions. Here, we took a phosphoproteomic approach to elucidate the ABA signaling network in Physcomitrella patens, a model species of basal land plants. Our phosphoproteomic analysis detected 4630 phosphopeptides from wild-type P. patens and two ABA-responsive mutants, a disruptant of group-A type-2C protein phosphatase (PP2C; ppabi1a/b) and AR7, a defective mutant in ARK, identified as an upstream regulator of SnRK2. Quantitative analysis detected 143 ABA-responsive phosphopeptides in P. patens. The analysis indicated that SnRK2-mediated phosphorylation and target motifs were partially conserved in bryophytes. Our data demonstrate that the PpSnRK2B and AREB/ABF-type transcription factors are phosphorylated in vivo in response to ABA under the control of ARK. On the other hand, our data also revealed the following: (i) the entire ABA-responsive phosphoproteome in P. patens is quite diverse; (ii) P. patens PP2C affects additional pathways other than the known ABA signaling pathway; and (iii) ARK is mainly involved in ABA signaling. Taken together, we propose that the core ABA signaling pathway is essential in all land plants; however, some ABA-responsive phosphosignaling uniquely developed in bryophytes during the evolutionary process.
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Affiliation(s)
- Anna Amagai
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo, 184-8588, Japan
| | - Yoshimasa Honda
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo, 184-8588, Japan
| | - Shinnosuke Ishikawa
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo, 184-8588, Japan
| | - Yurie Hara
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo, 184-8588, Japan
| | - Mayuri Kuwamura
- Department of Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, 156-8502, Japan
| | - Akihisa Shinozawa
- Department of Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, 156-8502, Japan
| | - Naoyuki Sugiyama
- Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Yasushi Ishihama
- Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Daisuke Takezawa
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama, 338-8570, Japan
| | - Yoichi Sakata
- Department of Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo, 156-8502, Japan
| | - Kazuo Shinozaki
- Gene Discovery Group, RIKEN Center for Sustainable Resource Science, 3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan
| | - Taishi Umezawa
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo, 184-8588, Japan
- PRESTO, Japan Science and Technology Agency, Gobancho, Chiyodaku, Tokyo, 102-0076, Japan
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Guan Y, Liu L, Wang Q, Zhao J, Li P, Hu J, Yang Z, Running MP, Sun H, Huang J. Gene refashioning through innovative shifting of reading frames in mosses. Nat Commun 2018; 9:1555. [PMID: 29674719 PMCID: PMC5908804 DOI: 10.1038/s41467-018-04025-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 03/28/2018] [Indexed: 12/20/2022] Open
Abstract
Early-diverging land plants such as mosses are known for their outstanding abilities to grow in various terrestrial habitats, incorporating tremendous structural and physiological innovations, as well as many lineage-specific genes. How these genes and functional innovations evolved remains unclear. In this study, we show that a dual-coding gene YAN/AltYAN in the moss Physcomitrella patens evolved from a pre-existing hemerythrin gene. Experimental evidence indicates that YAN/AltYAN is involved in fatty acid and lipid metabolism, as well as oil body and wax formation. Strikingly, both the recently evolved dual-coding YAN/AltYAN and the pre-existing hemerythrin gene might have similar physiological effects on oil body biogenesis and dehydration resistance. These findings bear important implications in understanding the mechanisms of gene origination and the strategies of plants to fine-tune their adaptation to various habitats. Extant representatives of the earliest land plant lineages adapt to various terrestrial habitats with structural and physiological innovations. Here the authors show a dual-coding gene in the moss Physcomitrella patens evolved from a hemerythrin gene, with effects on oil body biogenesis and dehydration resistance.
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Affiliation(s)
- Yanlong Guan
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, China
| | - Li Liu
- Key Laboratory of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, China
| | - Qia Wang
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, China
| | - Jinjie Zhao
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, China
| | - Ping Li
- Key Laboratory of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jinyong Hu
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, China
| | - Zefeng Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, 225009, Yangzhou, China
| | - Mark P Running
- Department of Biology, University of Louisville, Louisville, KY, 40292, USA
| | - Hang Sun
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, China
| | - Jinling Huang
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, 650201, Kunming, China. .,Institute of Plant Stress Biology, State Key Laboratory of Cotton Biology, Henan University, 475001, Kaifeng, China. .,Department of Biology, East Carolina University, Greenville, NC, 27858, USA.
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Alam MN, Zhang L, Yang L, Islam MR, Liu Y, Luo H, Yang P, Wang Q, Chan Z. Transcriptomic profiling of tall fescue in response to heat stress and improved thermotolerance by melatonin and 24-epibrassinolide. BMC Genomics 2018; 19:224. [PMID: 29587632 PMCID: PMC5870388 DOI: 10.1186/s12864-018-4588-y] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 03/08/2018] [Indexed: 11/12/2022] Open
Abstract
Background Tall fescue is a widely used cool season turfgrass and relatively sensitive to high temperature. Chemical compounds like melatonin (MT) and 24-epibrassinolide (EBL) have been reported to improve plant heat stress tolerance effectively. Results In this study, we reported that MT and EBL pretreated tall fescue seedlings showed decreased reactive oxygen species (ROS), electrolyte leakage (EL) and malondialdehide (MDA), but increased chlorophyll (Chl), total protein and antioxidant enzyme activities under heat stress condition, resulting in improved plant growth. Transcriptomic profiling analysis showed that 4311 and 8395 unigenes were significantly changed after 2 h and 12 h of heat treatments, respectively. Among them, genes involved in heat stress responses, DNA, RNA and protein degradation, redox, energy metabolisms, and hormone metabolism pathways were highly induced after heat stress. Genes including FaHSFA3, FaAWPM and FaCYTC2 were significantly upregulated by both MT and EBL treatments, indicating that these genes might function as the putative target genes of MT and EBL. Conclusions These findings indicated that heat stress caused extensively transcriptomic reprogramming of tall fescue and exogenous application of MT and EBL effectively improved thermotolerance in tall fescue. Electronic supplementary material The online version of this article (10.1186/s12864-018-4588-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mohammad Nur Alam
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden/Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, Hubei, 430074, China.,University of Chinese Academy of Sciences, Beijing, 100039, China.,Agronomy Division, Wheat Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur, 1701, Bangladesh
| | - Lihua Zhang
- Institute for Advanced Studies and College of Life Science, Wuhan University, Wuhan, Hubei, 430072, China
| | - Li Yang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden/Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, Hubei, 430074, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Md Rabiul Islam
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden/Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, Hubei, 430074, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Yang Liu
- Institute of Poultry and Veterinarian, Hubei Academy of Agricultural Science, Wuhan, Hubei, 430209, China
| | - Hong Luo
- Department of Genetics and Biochemistry, Clemson University, Clemson, USA
| | - Pingfang Yang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden/Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, Hubei, 430074, China
| | - Qingfeng Wang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden/Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, Hubei, 430074, China.
| | - Zhulong Chan
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, 430070, China. .,Key Laboratory for Quality Control of Characteristic Fruits and Vegetables of Hubei Province, College of Life Science and Technology, Hubei Engineering University, Xiaogan, Hubei, 432000, China.
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Li L, Aslam M, Rabbi F, Vanderwel MC, Ashton NW, Suh DY. PpORS, an ancient type III polyketide synthase, is required for integrity of leaf cuticle and resistance to dehydration in the moss, Physcomitrella patens. PLANTA 2018; 247:527-541. [PMID: 29119267 DOI: 10.1007/s00425-017-2806-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 10/30/2017] [Indexed: 05/06/2023]
Abstract
PpORS knockout mutants produced abnormal leaves with increased dye permeability and were more susceptible to dehydration, consistent with PpORS products being constituents of a cuticular structure in the moss. Type III polyketide synthases (PKSs) have co-evolved with terrestrial plants such that each taxon can generate a characteristic collection of polyketides, fine-tuned to its needs. 2'-Oxoalkylresorcinol synthase from Physcomitrella patens (PpORS) is basal to all plant type III PKSs in phylogenetic trees and may closely resemble their most recent common ancestor. To gain insight into the roles that ancestral plant type III PKSs might have played during early land plant evolution, we constructed and phenotypically characterized targeted knockouts of PpORS. Ors gametophores, unless submerged in water while they were developing, displayed various leaf malformations that included grossly misshapen leaves, missing or abnormal midribs, multicellular protuberances and localized necrosis. Ors leaves, particularly abnormal ones, showed increased permeability to the hydrophilic dye, toluidine blue. Ors gametophores lost water faster and were more susceptible to dehydration than those of the control strain. Our findings are consistent with ors leaves possessing a partially defective cuticle and implicate PpORS in synthesis of the intact cuticle. PpORS orthologs are present in a few moss species but have not been found in other plants. However, conceivably an ancestral ORS in early land plants may have contributed to their protection from dehydration.
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Affiliation(s)
- Li Li
- Department of Chemistry and Biochemistry, University of Regina, Regina, SK, S4S 0A2, Canada
| | - Misbah Aslam
- Department of Chemistry and Biochemistry, University of Regina, Regina, SK, S4S 0A2, Canada
| | - Fazle Rabbi
- Department of Chemistry and Biochemistry, University of Regina, Regina, SK, S4S 0A2, Canada
| | - Mark C Vanderwel
- Department of Biology, University of Regina, Regina, SK, S4S 0A2, Canada
| | - Neil W Ashton
- Department of Biology, University of Regina, Regina, SK, S4S 0A2, Canada
| | - Dae-Yeon Suh
- Department of Chemistry and Biochemistry, University of Regina, Regina, SK, S4S 0A2, Canada.
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Zheng Z, Gao S, Huan L, Wang GC. Diluted seawater affects phytohormone receptors and maintains the protonema stage in Physcomitrella patens. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 93:119-130. [PMID: 29124815 DOI: 10.1111/tpj.13764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/21/2017] [Accepted: 10/25/2017] [Indexed: 06/07/2023]
Abstract
Due to its highly efficient homologous recombination ability and unusual evolutionary position, the moss Physcomitrella patens has begun to attract more attention in genetic and evolutionary studies. Protonema, the filament stage of the gametophyte, is of great significance in P. patens protoplast isolation. Moreover, protonema is widely used in genetic engineering. However, difficulties in the induction and state maintenance of protonema restrict its wider application. In this work, protonema was induced efficiently in a diluted seawater medium, and the filamentous state was maintained without further cell differentiation. The developmental process of the protonema resumed, progressing to bud assembly and gametophore formation after transfer to freshwater medium. In addition, a transcriptome analysis showed that plant hormone signal transduction pathways were downregulated when protonema was grown in diluted seawater medium. Consistent with the transcriptome results, the protonema failed to respond to the addition of indole-3-acetic acid and 6-benzylaminopurine to the diluted seawater medium. Based on these results, we concluded that diluted seawater medium blocks the differentiation of protonema. This result could provide a novel insight to benefit future protonema production.
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Affiliation(s)
- Zhenbing Zheng
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
- College of Earth Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shan Gao
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Li Huan
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
| | - Guang-Ce Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China
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Rawat A, Brejšková L, Hála M, Cvrčková F, Žárský V. The Physcomitrella patens exocyst subunit EXO70.3d has distinct roles in growth and development, and is essential for completion of the moss life cycle. THE NEW PHYTOLOGIST 2017; 216:438-454. [PMID: 28397275 DOI: 10.1111/nph.14548] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 02/24/2017] [Indexed: 05/28/2023]
Abstract
The exocyst, an evolutionarily conserved secretory vesicle-tethering complex, spatially controls exocytosis and membrane turnover in fungi, metazoans and plants. The exocyst subunit EXO70 exists in multiple paralogs in land plants, forming three conserved clades with assumed distinct roles. Here we report functional analysis of the first moss exocyst subunit to be studied, Physcomitrella patens PpEXO70.3d (Pp1s97_91V6), from the, as yet, poorly characterized EXO70.3 clade. Following phylogenetic analysis to confirm the presence of three ancestral land plant EXO70 clades outside angiosperms, we prepared and phenotypically characterized loss-of-function Ppexo70.3d mutants and localized PpEXO70.3d in vivo using green fluorescent protein-tagged protein expression. Disruption of PpEXO70.3d caused pleiotropic cell elongation and differentiation defects in protonemata, altered response towards exogenous auxin, increased endogenous IAA concentrations, along with defects in bud and gametophore development. During mid-archegonia development, an abnormal egg cell is formed and subsequently collapses, resulting in mutant sterility. Mutants exhibited altered cell wall and cuticle deposition, as well as compromised cytokinesis, consistent with the protein localization to the cell plate. Despite some functional redundancy allowing survival of moss lacking PpEXO70.3d, this subunit has an essential role in the moss life cycle, indicating sub-functionalization within the moss EXO70 family.
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Affiliation(s)
- Anamika Rawat
- Laboratory of Cell Morphogenesis, Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44, Prague 2, Czech Republic
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02, Prague 6, Czech Republic
| | - Lucie Brejšková
- Laboratory of Cell Morphogenesis, Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44, Prague 2, Czech Republic
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02, Prague 6, Czech Republic
| | - Michal Hála
- Laboratory of Cell Morphogenesis, Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44, Prague 2, Czech Republic
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02, Prague 6, Czech Republic
| | - Fatima Cvrčková
- Laboratory of Cell Morphogenesis, Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44, Prague 2, Czech Republic
| | - Viktor Žárský
- Laboratory of Cell Morphogenesis, Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44, Prague 2, Czech Republic
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, 165 02, Prague 6, Czech Republic
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Giarola V, Hou Q, Bartels D. Angiosperm Plant Desiccation Tolerance: Hints from Transcriptomics and Genome Sequencing. TRENDS IN PLANT SCIENCE 2017; 22:705-717. [PMID: 28622918 DOI: 10.1016/j.tplants.2017.05.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 05/12/2017] [Accepted: 05/18/2017] [Indexed: 05/21/2023]
Abstract
Desiccation tolerance (DT) in angiosperms is present in the small group of resurrection plants and in seeds. DT requires the presence of protective proteins, specific carbohydrates, restructuring of membrane lipids, and regulatory mechanisms directing a dedicated gene expression program. Many components are common to resurrection plants and seeds; however, some are specific for resurrection plants. Understanding how each component contributes to DT is challenging. Recent transcriptome analyses and genome sequencing indicate that increased expression is essential of genes encoding protective components, recently evolved, species-specific genes and non-protein-coding RNAs. Modification and reshuffling of existing cis-regulatory promoter elements seems to play a role in the rewiring of regulatory networks required for increased expression of DT-related genes in resurrection species.
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Affiliation(s)
- Valentino Giarola
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Kirschallee 1, 53115 Bonn, Germany
| | - Quancan Hou
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Kirschallee 1, 53115 Bonn, Germany; Present address: Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Dorothea Bartels
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Kirschallee 1, 53115 Bonn, Germany.
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Wang J, Liu S, Li C, Wang T, Zhang P, Chen K. PnLRR-RLK27, a novel leucine-rich repeats receptor-like protein kinase from the Antarctic moss Pohlia nutans, positively regulates salinity and oxidation-stress tolerance. PLoS One 2017; 12:e0172869. [PMID: 28241081 PMCID: PMC5328275 DOI: 10.1371/journal.pone.0172869] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 02/11/2017] [Indexed: 11/17/2022] Open
Abstract
Leucine-rich repeats receptor-like kinases (LRR-RLKs) play important roles in plant growth and development as well as stress responses. Here, 56 LRR-RLK genes were identified in the Antarctic moss Pohlia nutans transcriptome, which were further classified into 11 subgroups based on their extracellular domain. Of them, PnLRR-RLK27 belongs to the LRR II subgroup and its expression was significantly induced by abiotic stresses. Subcellular localization analysis showed that PnLRR-RLK27 was a plasma membrane protein. The overexpression of PnLRR-RLK27 in Physcomitrella significantly enhanced the salinity and ABA tolerance in their gametophyte growth. Similarly, PnLRR-RLK27 heterologous expression in Arabidopsis increased the salinity and ABA tolerance in their seed germination and early root growth as well as the tolerance to oxidative stress. PnLRR-RLK27 overproduction in these transgenic plants increased the expression of salt stress/ABA-related genes. Furthermore, PnLRR-RLK27 increased the activities of reactive oxygen species (ROS) scavengers and reduced the levels of malondialdehyde (MDA) and ROS. Taken together, these results suggested that PnLRR-RLK27 as a signaling regulator confer abiotic stress response associated with the regulation of the stress- and ABA-mediated signaling network.
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Affiliation(s)
- Jing Wang
- School of Life Science and National Glycoengineering Research Center, Shandong University, Jinan, China
| | - Shenghao Liu
- Marine Ecology Research Center, The First Institute of Oceanography, State Oceanic Administration, Qingdao, China
| | - Chengcheng Li
- School of Life Science and National Glycoengineering Research Center, Shandong University, Jinan, China
| | - Tailin Wang
- School of Life Science and National Glycoengineering Research Center, Shandong University, Jinan, China
| | - Pengying Zhang
- School of Life Science and National Glycoengineering Research Center, Shandong University, Jinan, China
- Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Jinan, China
| | - Kaoshan Chen
- School of Life Science and National Glycoengineering Research Center, Shandong University, Jinan, China
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Li Q, Zhang X, Lv Q, Zhu D, Qiu T, Xu Y, Bao F, He Y, Hu Y. Physcomitrella Patens Dehydrins (PpDHNA and PpDHNC) Confer Salinity and Drought Tolerance to Transgenic Arabidopsis Plants. FRONTIERS IN PLANT SCIENCE 2017; 8:1316. [PMID: 28798765 PMCID: PMC5526925 DOI: 10.3389/fpls.2017.01316] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 07/12/2017] [Indexed: 05/18/2023]
Abstract
Dehydrins (DHNs) as a member of late-embryogenesis-abundant (LEA) proteins are involved in plant abiotic stress tolerance. Two dehydrins PpDHNA and PpDHNC were previously characterized from the moss Physcomitrella patens, which has been suggested to be an ideal model plant to study stress tolerance due to its adaptability to extreme environment. In this study, functions of these two genes were analyzed by heterologous expressions in Arabidopsis. Phenotype analysis revealed that overexpressing PpDHN dehydrin lines had stronger stress resistance than wild type and empty-vector control lines. These stress tolerance mainly due to the up-regulation of stress-related genes expression and mitigation to oxidative damage. The transgenic plants showed strong scavenging ability of reactive oxygen species(ROS), which was attributed to the enhancing of the content of antioxidant enzymes like superoxide dismutase (SOD) and catalase (CAT). Further analysis showed that the contents of chlorophyll and proline tended to be the appropriate level (close to non-stress environment) and the malondialdehyde (MDA) were repressed in these transgenic plants after exposure to stress. All these results suggest the PpDHNA and PpDHNC played a crucial role in response to drought and salt stress.
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Agarwal T, Upadhyaya G, Halder T, Mukherjee A, Majumder AL, Ray S. Different dehydrins perform separate functions in Physcomitrella patens. PLANTA 2017; 245:101-118. [PMID: 27638172 DOI: 10.1007/s00425-016-2596-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 09/08/2016] [Indexed: 05/06/2023]
Abstract
Dehydrins, PpDHNA and PpDHNB from Physcomitrella patens provide drought and cold tolerance while PpDHNC shows antimicrobial property suggesting different dehydrins perform separate functions in P. patens. The moss Physcomitrella patens can withstand extremes of environmental condition including abiotic stress such as dehydration, salinity, low temperature and biotic stress such as pathogen attack. Osmotic stress is inflicted under both cold and drought stress conditions where dehydrins have been found to play a significant protective role. In this study, a comparative analysis was drawn for the three dehydrins PpDHNA, PpDHNB and PpDHNC from P. patens. Our data shows that PpDHNA and PpDHNB play a major role in cellular protection during osmotic stress. PpDHNB showed several fold upregulation of the gene when P. patens was subjected to cold and osmotic stress in combination. PpDHNA and PpDHNB provide protection to enzyme lactate dehydrogenase under osmotic as well as freezing conditions. PpDHNC possesses antibacterial activity and thus may have a role in biotic stress response. Overexpression of PpDHNA, PpDHNB and PpDHNC in transgenic tobacco showed a better performance for PpDHNB with respect to cold and osmotic stress. These results suggest that specific dehydrins contribute to tolerance of mosses under different stress conditions.
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Affiliation(s)
- Tanushree Agarwal
- Department of Botany, Centre of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Gouranga Upadhyaya
- Department of Botany, Centre of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Tanmoy Halder
- Department of Botany, Centre of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
| | - Abhishek Mukherjee
- Division of Plant Biology, Bose Institute, P1/12 CIT Scheme VII M, Kolkata, 700054, India
| | - Arun Lahiri Majumder
- Division of Plant Biology, Bose Institute, P1/12 CIT Scheme VII M, Kolkata, 700054, India
| | - Sudipta Ray
- Department of Botany, Centre of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India.
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Tan T, Sun Y, Peng X, Wu G, Bao F, He Y, Zhou H, Lin H. ABSCISIC ACID INSENSITIVE3 Is Involved in Cold Response and Freezing Tolerance Regulation in Physcomitrella patens. FRONTIERS IN PLANT SCIENCE 2017; 8:1599. [PMID: 28955377 PMCID: PMC5601040 DOI: 10.3389/fpls.2017.01599] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 08/31/2017] [Indexed: 05/08/2023]
Abstract
Synopsis This work demonstrates that PpABI3 contributes to freezing tolerance regulation in Physcomitrella patens. Transcription factor ABSCISIC ACID INSENSITIVE3 (ABI3) is known to play a major role in regulating seed dormancy, germination, seedling development as well as stress responses. ABI3 is conserved among land plants; however, its roles in non-seed plants under stress conditions have not been well characterized. In this study, we report that ABI3 is involved in freezing tolerance regulation during cold acclimation at least in part through ABA signaling pathway in moss Physcomitrella patens (P. patens). Deletion of PpABI3 (Δabi3-1) compromises the induction of genes related to cold response and antioxidative protection, resulting in reduced accumulation of cryoprotectants and antioxidants. In addition, photosystem II (PSII) activity is repressed in Δabi3-1 during cold acclimation partially due to alternations of photosynthetic protein complexes compositions. The gametophyte of Δabi3-1 displays severe growth inhibition and developmental deficiency under low temperature condition, while two independent complementary lines display phenotypes similar to that of wild-type P. patens (WT). Furthermore, the freezing tolerance of Δabi3-1 was significantly affected by deletion of PpABI3. These data revealed that PpABI3 plays an important role in low temperature response and freezing tolerance in P. patens.
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Affiliation(s)
- Tinghong Tan
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
| | - Yanni Sun
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
| | - Xingji Peng
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
| | - Guochun Wu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
| | - Fang Bao
- School of Life Sciences, Capital Normal UniversityBeijing, China
| | - Yikun He
- School of Life Sciences, Capital Normal UniversityBeijing, China
| | - Huapeng Zhou
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
- *Correspondence: Huapeng Zhou
| | - Honghui Lin
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan UniversityChengdu, China
- Honghui Lin
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Chater CC, Caine RS, Tomek M, Wallace S, Kamisugi Y, Cuming AC, Lang D, MacAlister CA, Casson S, Bergmann DC, Decker EL, Frank W, Gray JE, Fleming A, Reski R, Beerling DJ. Origin and function of stomata in the moss Physcomitrella patens. NATURE PLANTS 2016; 2:16179. [PMID: 27892923 PMCID: PMC5131878 DOI: 10.1038/nplants.2016.179] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 10/20/2016] [Indexed: 05/02/2023]
Abstract
Stomata are microscopic valves on plant surfaces that originated over 400 million years (Myr) ago and facilitated the greening of Earth's continents by permitting efficient shoot-atmosphere gas exchange and plant hydration1. However, the core genetic machinery regulating stomatal development in non-vascular land plants is poorly understood2-4 and their function has remained a matter of debate for a century5. Here, we show that genes encoding the two basic helix-loop-helix proteins PpSMF1 (SPEECH, MUTE and FAMA-like) and PpSCREAM1 (SCRM1) in the moss Physcomitrella patens are orthologous to transcriptional regulators of stomatal development in the flowering plant Arabidopsis thaliana and essential for stomata formation in moss. Targeted P. patens knockout mutants lacking either PpSMF1 or PpSCRM1 develop gametophytes indistinguishable from wild-type plants but mutant sporophytes lack stomata. Protein-protein interaction assays reveal heterodimerization between PpSMF1 and PpSCRM1, which, together with moss-angiosperm gene complementations6, suggests deep functional conservation of the heterodimeric SMF1 and SCRM1 unit is required to activate transcription for moss stomatal development, as in A. thaliana7. Moreover, stomata-less sporophytes of ΔPpSMF1 and ΔPpSCRM1 mutants exhibited delayed dehiscence, implying stomata might have promoted dehiscence in the first complex land-plant sporophytes.
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Affiliation(s)
- Caspar C. Chater
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de Mexico, Cuernavaca, Mexico
| | - Robert S. Caine
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
| | - Marta Tomek
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany
| | - Simon Wallace
- Royal College of Veterinary Surgeons, Belgravia House, 62-64 Horseferry Rd, London SW1P 2AF, UK
| | - Yasuko Kamisugi
- Centre for Plant Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Andrew C. Cuming
- Centre for Plant Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Daniel Lang
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany
| | - Cora A. MacAlister
- Department of Molecular Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan, 48109-1048, USA
| | - Stuart Casson
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, UK
| | | | - Eva L. Decker
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany
| | - Wolfgang Frank
- Plant Molecular Cell Biology, Faculty of Biology, Ludwig-Maximilians-Universität München, LMU Biocenter, Großhaderner Straße 2, 82152 Planegg-Martinsried, Germany
| | - Julie E. Gray
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, UK
| | - Andrew Fleming
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
| | - Ralf Reski
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, 79104 Freiburg, Germany
- BIOSS – Centre for Biological Signalling Studies, 79104 Freiburg, Germany
| | - David J. Beerling
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
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Fesenko I, Seredina A, Arapidi G, Ptushenko V, Urban A, Butenko I, Kovalchuk S, Babalyan K, Knyazev A, Khazigaleeva R, Pushkova E, Anikanov N, Ivanov V, Govorun VM. The Physcomitrella patens Chloroplast Proteome Changes in Response to Protoplastation. FRONTIERS IN PLANT SCIENCE 2016; 7:1661. [PMID: 27867392 PMCID: PMC5095126 DOI: 10.3389/fpls.2016.01661] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 10/21/2016] [Indexed: 05/29/2023]
Abstract
Plant protoplasts are widely used for genetic manipulation and functional studies in transient expression systems. However, little is known about the molecular pathways involved in a cell response to the combined stress factors resulted from protoplast generation. Plants often face more than one type of stress at a time, and how plants respond to combined stress factors is therefore of great interest. Here, we used protoplasts of the moss Physcomitrella patens as a model to study the effects of short-term stress on the chloroplast proteome. Using label-free comparative quantitative proteomic analysis (SWATH-MS), we quantified 479 chloroplast proteins, 219 of which showed a more than 1.4-fold change in abundance in protoplasts. We additionally quantified 1451 chloroplast proteins using emPAI. We observed degradation of a significant portion of the chloroplast proteome following the first hour of stress imposed by the protoplast isolation process. Electron-transport chain (ETC) components underwent the heaviest degradation, resulting in the decline of photosynthetic activity. We also compared the proteome changes to those in the transcriptional level of nuclear-encoded chloroplast genes. Globally, the levels of the quantified proteins and their corresponding mRNAs showed limited correlation. Genes involved in the biosynthesis of chlorophyll and components of the outer chloroplast membrane showed decreases in both transcript and protein abundance. However, proteins like dehydroascorbate reductase 1 and 2-cys peroxiredoxin B responsible for ROS detoxification increased in abundance. Further, genes such as thylakoid ascorbate peroxidase were induced at the transcriptional level but down-regulated at the proteomic level. Together, our results demonstrate that the initial chloroplast reaction to stress is due changes at the proteomic level.
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Affiliation(s)
- Igor Fesenko
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Anna Seredina
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Georgij Arapidi
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Vasily Ptushenko
- Department of Bioenergetics, Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State UniversityMoscow, Russia
- Department of Biocatalysis, Emanuel Institute of Biochemical Physics, Russian Academy of SciencesMoscow, Russia
| | - Anatoly Urban
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Ivan Butenko
- Laboratory of the Proteomic Analysis, Research Institute for Physico-Chemical MedicineMoscow, Russia
| | - Sergey Kovalchuk
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Konstantin Babalyan
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Andrey Knyazev
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Regina Khazigaleeva
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Elena Pushkova
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Nikolai Anikanov
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Vadim Ivanov
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
| | - Vadim M. Govorun
- Laboratory of Proteomics, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of SciencesMoscow, Russia
- Laboratory of the Proteomic Analysis, Research Institute for Physico-Chemical MedicineMoscow, Russia
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The Transcriptional Response to DNA-Double-Strand Breaks in Physcomitrella patens. PLoS One 2016; 11:e0161204. [PMID: 27537368 PMCID: PMC4990234 DOI: 10.1371/journal.pone.0161204] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 08/01/2016] [Indexed: 12/11/2022] Open
Abstract
The model bryophyte Physcomitrella patens is unique among plants in supporting the generation of mutant alleles by facile homologous recombination-mediated gene targeting (GT). Reasoning that targeted transgene integration occurs through the capture of transforming DNA by the homology-dependent pathway for DNA double-strand break (DNA-DSB) repair, we analysed the genome-wide transcriptomic response to bleomycin-induced DNA damage and generated mutants in candidate DNA repair genes. Massively parallel (Illumina) cDNA sequencing identified potential participants in gene targeting. Transcripts encoding DNA repair proteins active in multiple repair pathways were significantly up-regulated. These included Rad51, CtIP, DNA ligase 1, Replication protein A and ATR in homology-dependent repair, Xrcc4, DNA ligase 4, Ku70 and Ku80 in non-homologous end-joining and Rad1, Tebichi/polymerase theta, PARP in microhomology-mediated end-joining. Differentially regulated cell-cycle components included up-regulated Rad9 and Hus1 DNA-damage-related checkpoint proteins and down-regulated D-type cyclins and B-type CDKs, commensurate with the imposition of a checkpoint at G2 of the cell cycle characteristic of homology-dependent DNA-DSB repair. Candidate genes, including ATP-dependent chromatin remodelling helicases associated with repair and recombination, were knocked out and analysed for growth defects, hypersensitivity to DNA damage and reduced GT efficiency. Targeted knockout of PpCtIP, a cell-cycle activated mediator of homology-dependent DSB resection, resulted in bleomycin-hypersensitivity and greatly reduced GT efficiency.
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