Plant Signaling & Behavior最新文献

{"title":"LncRNAs elevate plant adaptation under low temperature by maintaining local chromatin landscape","authors":"Yongke Tian, Yukang Hou, Yuan Song","doi":"10.1080/15592324.2021.2014677","DOIUrl":"https://doi.org/10.1080/15592324.2021.2014677","url":null,"abstract":"ABSTRACT Epigenetic regulation is one of the most precise and subtle ways of gene regulation, including DNA modification, histone modification, RNA modification, histone variants, chromatin remodeling, and long non-coding RNAs (lncRNAs). Chromatin modification is the most basic type of epigenetic regulation, which plays a key role in a myriad of developmental and physiological processes that have been thoroughly studied. These modifications are usually completed by a series of conserved chromatin modification complexes in eukaryotes. In recent years, a series of lncRNAs in organisms also have been described as having irreplaceable functions in biological environment adaptation, especially in biotic and abiotic stresses. Moreover, these molecules form a sophisticated regulatory network through mutual cross-regulation to achieve quantitative expression of key environmental response genes to external signals. For instance, the function of lncRNAs will directly or indirectly depend on the function of the chromatin modification complex. In this review, we mainly focus on chromatin modification, lncRNA, and their coordination mechanism to achieve the high adaptability of plants in low-temperature environments. We highlight recent findings and insights into lncRNA-mediated local chromatin environment changes during plant growth under low temperature via chromatin modification complexes, including target gene specificity for different lncRNA.","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"1 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78844745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of differentially expressed miRNAs and their target genes in response to brassinolide treatment on flowering of tree peony (Paeonia ostii)","authors":"Lin Zhang, Chengwei Song, D. Guo, Lili Guo, Xiaogai Hou, Huafang Wang","doi":"10.1080/15592324.2022.2056364","DOIUrl":"https://doi.org/10.1080/15592324.2022.2056364","url":null,"abstract":"ABSTRACT Tree peony is a famous flower plant in China, but the short and concentrated flowering period limits its ornamental value and economic value. Brassinolide (BR) plays an important role in plant growth and development including flowering. There have been a large number of reports on the molecular aspects of the flowering process, but the genetic mechanism that was responsible for miRNA-guided regulation of tree peony is almost unclear. In this study, the leaves of tree peony cultivar, ‘Feng Dan’, were sprayed with different concentrations of BR, and the obvious bloom delay was found at the treatment with BR 50 μg/L. The small RNA sequencing and transcriptome sequencing were performed on the petals of tree peony under an untreated control (CK) and the treatment with BR 50 μg/L during four consecutive flowering development stages. A total of 22 known miRNAs belonging to 12 families were identified and 84 novel miRNAs were predicted. Combined with transcriptome data, a total of 376 target genes were predicted for the 18 differentially expressed known miRNAs and 177 target genes were predicted for the 23 differentially expressed novel miRNAs. Additionally, the potential miRNAs and their target genes were identified, including miR156b targeting SPL, miR172a_4 targeting AP2 and four novel miRNAs targeting SPA1, and revealed that they might affect the flowering time in tree peony. Collectively, these results would provide a theoretical basis for further analysis of miRNA-guided regulation on flowering period in tree peony.","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"20 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81752245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The presence of oxygenated lipids in plant defense in response to biotic stress: a metabolomics appraisal.","authors":"Chanel J Pretorius,&nbsp;Dylan R Zeiss,&nbsp;Ian A Dubery","doi":"10.1080/15592324.2021.1989215","DOIUrl":"https://doi.org/10.1080/15592324.2021.1989215","url":null,"abstract":"<p><p>Recent lipid-based findings suggest more direct roles for fatty acids and their degradation products in inducing/modulating various aspects of plant defense, e.g. as signaling molecules following stress responses that may regulate plant innate immunity. The synthesis of oxylipins is a highly dynamic process and occurs in both a developmentally regulated mode and in response to abiotic and biotic stresses. This mini-review summarizes the occurrence of free - and oxygenated fatty acid derivatives in plants as part of an orchestrated metabolic defense against pathogen attack. Oxygenated C18 derived polyunsaturated fatty acids were identified by untargeted metabolomics studies of a number of different plant-microbe pathosystems and may serve as potential biomarkers of oxidative stress. Untargeted metabolomics in combination with targeted lipidomics, can uncover previously unrecognized aspects of lipid mobilization during plant defense.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"16 12","pages":"1989215"},"PeriodicalIF":2.9,"publicationDate":"2021-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9208797/pdf/KPSB_16_1989215.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10454166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the selective advantage of coloniality in staghorn ferns (<i>Platycerium bifurcatum</i>, Polypodiaceae).","authors":"Kevin C Burns","doi":"10.1080/15592324.2021.1961063","DOIUrl":"https://doi.org/10.1080/15592324.2021.1961063","url":null,"abstract":"<p><p>The staghorn fern (<i>Platycerium bifurcatum</i>, Polypodiaceae) is an epiphyte from Australasia that displays many life history characteristics commonly associated with eusocial animals. Here, I hypothesize about the selective advantage of living in cooperative groups by comparing the morphological characteristics of colonies to their solitary congeners.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"16 11","pages":"1961063"},"PeriodicalIF":2.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8525959/pdf/KPSB_16_1961063.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39267844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification and molecular characterization of propionylcholinesterase, a novel pseudocholinesterase in rice.","authors":"Kosuke Yamamoto,&nbsp;Yoshie S Momonoki","doi":"10.1080/15592324.2021.1961062","DOIUrl":"https://doi.org/10.1080/15592324.2021.1961062","url":null,"abstract":"<p><p>Cholinesterase is consisting of acetylcholinesterase (AChE) and pseudocholinesterase in vertebrates and invertebrates. <i>AChE</i> gene has been identified in several plant species, while pseudocholinesterase gene has not yet been found in any plant species. In this study, we report that the <i>AChE</i> gene paralog encodes propionylcholinesterase (PChE), a pseudocholinesterase in rice. <i>PChE</i> was found to be located adjacent to <i>AChE</i> (Os07g0586200) on rice chromosome 7 and designated as Os07g0586100. Phylogenetic tree analysis showed a close relationship between rice <i>AChE</i> and <i>PChE. PChE</i>-overexpressing rice had higher hydrolytic activity toward propionylthiocholine than acetylthiocholine and showed extremely low activity against butyrylthiocholine. Therefore, the <i>PChE</i> gene product was characterized as a propionylcholinesterase, a pseudocholinesterase. The rice PChE displayed lower sensitivity to the cholinesterase inhibitor, neostigmine bromide, than electric eel, maize, and rice AChEs. The recombinant PChE functions as a 171 kDa homotetramer. PChE was expressed during the later developmental stage, and it was found be localized in the extracellular spaces of the rice leaf tissue. These results suggest that the rice plant possesses PChE, which functions in the extracellular spaces at a later developmental stage. To the best of our knowledge, this study provides the first direct evidence and molecular characterization of <i>PChE</i> in plants.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"16 11","pages":"1961062"},"PeriodicalIF":2.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8525928/pdf/KPSB_16_1961062.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39263827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plants make smart decisions in complex environments.","authors":"Liv S Severino","doi":"10.1080/15592324.2021.1970448","DOIUrl":"10.1080/15592324.2021.1970448","url":null,"abstract":"<p><p>This review proposes that plants make smart decision and encourages scientists to formulate and test hypotheses about plant's decisions as an option to investigate complex phenomena that are hardly explained through the predominant mechanistic approach. Three physiological processes (seed germination and seedling emergence, abortion of reproductive structures, and regulation of photosynthesis) are discussed to illustrate the plant's ability to make decisions from three different perspectives. It is proposed that plant scientists could access a rich pool of information by formulating and testing hypothesis on plant's decisions, even when it is not possible elucidating the full mechanism underpinning the decision. Decisions with a strategic component are discussed for seed germination and seedling emergence, in which the plant depends on limited information for making early decisions that will influence its survival and potential growth. Decisions consistent with an analysis of benefit/cost are illustrated with observations from abortion of reproductive structures. Decisions that search the optimization of complex processes are exemplified with the regulation of photosynthesis. For each type of decision, some draft experiments are suggested as exercise on how this framework could be applied. It is proposed that scientists could make experiments with plant's decisions adapting methods that were developed for other disciplines.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"16 11","pages":"1970448"},"PeriodicalIF":2.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8525964/pdf/KPSB_16_1970448.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39366043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Expression profiling of H3K27me3 demethylase genes during plant development and in response to environmental stress in <i>Arabidopsis</i>.","authors":"Nobutoshi Yamaguchi,&nbsp;Toshiro Ito","doi":"10.1080/15592324.2021.1950445","DOIUrl":"https://doi.org/10.1080/15592324.2021.1950445","url":null,"abstract":"<p><p>Histone modification influences gene expression. Among histone modifications, H3K27me3 is associated with downregulation of nearby genes via chromatin compaction. In <i>Arabidopsis thaliana</i>, a subset of JUMONJI C DOMAIN-CONTAINING PROTEIN (JMJ) proteins play a critical role in removal of H3K27me3 during plant development or in response to environmental cues. However, the regulation of H3K27me3 demethylase gene expression is not yet fully characterized. In this study, we computationally characterized the expression patterns of JMJ H3K27me3 demethylase genes using public transcriptome datasets created across plant development and after various environmental cues. Consistent with the available transcriptome datasets, GUS staining validated that <i>JMJ30</i> was highly expressed in the L1 layer of the shoot apical meristem. Furthermore, expression data for panel of five H3K27me3 demethylase genes revealed <i>JMJ30</i> to be the most highly affected by abiotic and biotic stress. In addition, <i>JMJ30</i> expression was variable between <i>Arabidopsis thaliana</i> accessions. Finally, the expression of a <i>JMJ30</i> orthologue from the related species <i>Arabidopsis halleri, AhgJMJ30</i>, fluctuated under field conditions. Taken together, our results suggest that transcriptional changes of H3K27me3 demethylase genes may play key roles in development and environmental responses.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"16 11","pages":"1950445"},"PeriodicalIF":2.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/15592324.2021.1950445","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39086341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparative study on the circadian rhythm of the electrical signals of <i>Broussonetia papyrifera</i> and <i>Morus alba</i>.","authors":"Jinjin Xie,&nbsp;Yanyou Wu,&nbsp;Deke Xing,&nbsp;Zhongying Li,&nbsp;Tian Chen,&nbsp;Rongrong Duan,&nbsp;Xiaoxing Zhu","doi":"10.1080/15592324.2021.1950899","DOIUrl":"https://doi.org/10.1080/15592324.2021.1950899","url":null,"abstract":"<p><p>The circadian clock regulates a wide range of physiological processes in plants. Here we showed the circadian variations of the electrical signals in <i>Broussonetia papyrifera</i> L. and <i>Morus alba</i> L. in a natural state, which were analyzed using the day-night cycle method. The circadian characteristics of different plant electrical signals were compared by constructing a coupling model for the circadian rhythm of plant electrical signals. The electrical signal sensor had two electrode plates, which were fixed on the two ends of the splint, leaves could then be clamped and measured. The clamping force between the two electrode plates was uniform, which enabled continuous and nondestructive measurements. The results showed that an electric cyclic behavior was observed (circadian cycle) with the circadian variation in the plants within 24 h. Both the resistance (R) and the impedance (Z) increased firstly in the early morning and then decreased subsequently, while the capacitance (C) showed an opposite variation. Under different weather conditions, plant electrical signals showed periodic changes when the temperature and light intensity in the environment slightly changed within the physiological tolerance of plant. This indicated that the circadian clock of plant electrical signals could be maintained endogenously. The variation curves of plant electrical signals as time increased were fitted using the sine equation. The characteristic parameters of circadian rhythm of plant electrical signals were obtained. We found that although all plant electrical signals exhibited electric cyclic behavior, but the characteristics of circadian rhythms of electrical signals were different. This study provided a scientific basic for precisely monitoring plant electrical signals, and a reference for revealing circadian rhythms of plant electrical signals and their occurrence rules.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"16 11","pages":"1950899"},"PeriodicalIF":2.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/15592324.2021.1950899","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39152903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exogenous carbon source supplementation counteracts root and hypocotyl growth limitations under increased cotyledon shading, with glucose and sucrose differentially modulating growth curves.","authors":"Judith García-González,&nbsp;Jozef Lacek,&nbsp;Wolfram Weckwerth,&nbsp;Katarzyna Retzer","doi":"10.1080/15592324.2021.1969818","DOIUrl":"https://doi.org/10.1080/15592324.2021.1969818","url":null,"abstract":"<p><p>Plant growth is continuously modulated by endogenous and exogenous stimuli. By no means the only, but well described, signaling molecules produced in plants and distributed through the plant body to orchestrate efficient growth are photosynthates. Light is a potent exogenous stimulus that determines, first, the rate of photosynthesis, but also the rate of plant growth. Root meristem activity is reduced with direct illumination but enhanced with increased sugar levels. With reduced cotyledon illumination, the seedling increases hypocotyl elongation until adequate light exposure is again provided. If endogenous carbon sources are limited, this leads to a temporary inhibition of root growth. Experimental growth conditions include exogenous supplementation of sucrose or glucose in addition to culturing seedlings under light exposure in Petri dishes. We compared total root length and hypocotyl elongation of <i>Arabidopsis thaliana</i> wild type <i>Col-0</i> in response to illumination status and carbon source in the growth medium. Overall, sucrose supplementation promoted hypocotyl and root length to a greater extent than glucose supplementation. Glucose promoted root length compared to non-supplemented seedlings especially when cotyledon illumination was greatly reduced.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"16 11","pages":"1969818"},"PeriodicalIF":2.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8526039/pdf/KPSB_16_1969818.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39342613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcriptomics analysis of genes induced by melatonin related to glucosinolates synthesis in broccoli hairy roots.","authors":"Peng Tian, Xu Lu, Jinyu Bao, Xiumin Zhang, Yaqi Lu, Xiaoling Zhang, Yunchun Wei, Jie Yang, Sheng Li, Shaoying Ma","doi":"10.1080/15592324.2021.1952742","DOIUrl":"10.1080/15592324.2021.1952742","url":null,"abstract":"<p><p>Glucoraphanin (GRA) is found in the seeds and vegetative organs of broccoli (<i>Brassica oleracea</i> L. var. <i>italica</i> Planch) as the precursor of anti-carcinogen sulforaphane (SF). The yield of GRA obtained from these materials is weak and the cost is high. In recent years, the production of plant secondary metabolites by large-scale hairy roots culture in vitro has succeeded in some species. Melatonin (MT) is a natural hormone which existed in numerous organisms. Studies have demonstrated that MT can improve the synthesis of secondary metabolites in plants. At present, it has not been reported that MT regulates the biosynthesis of glucoraphanin in broccoli hairy roots. In this study, the broccoli hairy roots that grew for 20 d were respectively treated by 500 µM MT for 0, 6, 12, 20 and 32. To explore the reason of changes in secondary metabolites and reveal the biosynthetic pathway of glucoraphanin at transcriptional level. Compared with 0 h, the yield of GRA under other treatments was increased, and the overall trend was firstly increased and then decreased. The total yield of GRA reached the highest at 12 h, which was 1.22-fold of 0 h. Then, the genome of broccoli as the reference, a total of 13234 differentially expressed genes (DEGs) were identified in broccoli hairy roots under treatment with 500 µM MT for 0, 6, 12, 20 and 32 h, respectively. Among these DEGs, 6266 (47.35%) were upregulated and 6968 (52.65%) were downregulated. It was found that the pathway of 'Glucosinolates biosynthesis (ko00966)' was enriched in the 16th place by Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis of the upregulated DEGs. The expression of key genes in the GRA biosynthesis pathway was upregulated at all time points, and a deduced GRA biosynthesis pathway map was constructed for reference.</p>","PeriodicalId":20232,"journal":{"name":"Plant Signaling & Behavior","volume":"16 11","pages":"1952742"},"PeriodicalIF":2.9,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8526036/pdf/KPSB_16_1952742.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39434948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}