Lucia Sylvain Bonfanti, Delphine Arbelet-Bonnin, Frédéric Filaine, Christophe Lalanne, Aurélien Renault, Patrice Meimoun, Patrick Laurenti, Etienne Grésillon, François Bouteau
{"title":"Toxic and signaling effects of the anaesthetic lidocaine on rice cultured cells.","authors":"Lucia Sylvain Bonfanti, Delphine Arbelet-Bonnin, Frédéric Filaine, Christophe Lalanne, Aurélien Renault, Patrice Meimoun, Patrick Laurenti, Etienne Grésillon, François Bouteau","doi":"10.1080/15592324.2024.2388443","DOIUrl":"10.1080/15592324.2024.2388443","url":null,"abstract":"<p><p>Most studies on anesthesia focus on the nervous system of mammals due to their interest in medicine. The fact that any life form can be anaesthetised is often overlooked although anesthesia targets ion channel activities that exist in all living beings. This study examines the impact of lidocaine on rice (<i>Oryza sativa</i>). It reveals that the cellular responses observed in rice are analogous to those documented in animals, encompassing direct effects, the inhibition of cellular responses, and the long-distance transmission of electrical signals. We show that in rice cells, lidocaine has a cytotoxic effect at a concentration of 1%, since it induces programmed reactive oxygen species (ROS) and caspase-like-dependent cell death, as already demonstrated in animal cells. Additionally, lidocaine causes changes in membrane ion conductance and induces a sharp reduction in electrical long-distance signaling following seedlings leaves burning. Finally, lidocaine was shown to inhibit osmotic stress-induced cell death and the regulation of Ca<sup>2+</sup> homeostasis. Thus, lidocaine treatment in rice and tobacco (<i>Nicotiana benthamiana</i>) seedlings induces not only cellular but also systemic effects similar to those induced in mammals.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"19 1","pages":"2388443"},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11312988/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141908753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xingyu Yan, Yongshun Liang, Felipe Yamashita, František Baluška
{"title":"Investigation of <i>Arabidopsis</i> root skototropism with different distance settings.","authors":"Xingyu Yan, Yongshun Liang, Felipe Yamashita, František Baluška","doi":"10.1080/15592324.2024.2348917","DOIUrl":"10.1080/15592324.2024.2348917","url":null,"abstract":"<p><p>Plants can activate protective and defense mechanisms under biotic and abiotic stresses. Their roots naturally grow in the soil, but when they encounter sunlight in the top-soil layers, they may move away from the light source to seek darkness. Here we investigate the skototropic behavior of roots, which promotes their fitness and survival. Glutamate-like receptors (GLRs) of plants play roles in sensing and responding to signals, but their role in root skototropism is not yet understood. Light-induced tropisms are known to be affected by auxin distribution, mainly determined by auxin efflux proteins (PIN proteins) at the root tip. However, the role of PIN proteins in root skototropism has not been investigated yet. To better understand root skototropism and its connection to the distance between roots and light, we established five distance settings between seedlings and darkness to investigate the variations in root bending tendencies. We compared differences in root skototropic behavior across different expression lines of <i>Arabidopsis thaliana</i> seedlings (<i>atglr3.7 ko, AtGLR3.7 OE</i>, and <i>pin2 knockout</i>) to comprehend their functions. Our research shows that as the distance between roots and darkness increases, the root's positive skototropism noticeably weakens. Our findings highlight the involvement of GLR3.7 and PIN2 in root skototropism.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"19 1","pages":"2348917"},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11073417/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140874047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jonguk An, Sun Ho Kim, Sunghwa Bahk, Minh Le Anh Pham, Jaemin Park, Zakiyah Ramadany, Jeongwoo Lee, Jong Chan Hong, Woo Sik Chung
{"title":"Quercetin induces pathogen resistance through the increase of salicylic acid biosynthesis in <i>Arabidopsis</i>.","authors":"Jonguk An, Sun Ho Kim, Sunghwa Bahk, Minh Le Anh Pham, Jaemin Park, Zakiyah Ramadany, Jeongwoo Lee, Jong Chan Hong, Woo Sik Chung","doi":"10.1080/15592324.2023.2270835","DOIUrl":"10.1080/15592324.2023.2270835","url":null,"abstract":"<p><p>Quercetin is a flavonol belonging to the flavonoid group of polyphenols. Quercetin is reported to have a variety of biological functions, including antioxidant, pigment, auxin transport inhibitor and root nodulation factor. Additionally, quercetin is known to be involved in bacterial pathogen resistance in <i>Arabidopsis</i> through the transcriptional increase of <i>pathogenesis-related</i> (<i>PR</i>) genes. However, the molecular mechanisms underlying how quercetin promotes pathogen resistance remain elusive. In this study, we showed that the transcriptional increases of <i>PR</i> genes were achieved by the monomerization and nuclear translocation of nonexpressor of pathogenesis-related proteins 1 (NPR1). Interestingly, salicylic acid (SA) was approximately 2-fold accumulated by the treatment with quercetin. Furthermore, we showed that the increase of SA biosynthesis by quercetin was induced by the transcriptional increases of typical SA biosynthesis-related genes. In conclusion, this study strongly suggests that quercetin induces bacterial pathogen resistance through the increase of SA biosynthesis in <i>Arabidopsis</i>.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"18 1","pages":"2270835"},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10761074/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71416429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiao Zhang, Yuqin Ding, Miao Yang, Aili Wei, Dongao Huo
{"title":"The role of NaHS pretreatment in improving salt stress resistance in foxtail millet seedlings: physiological and molecular mechanisms.","authors":"Xiao Zhang, Yuqin Ding, Miao Yang, Aili Wei, Dongao Huo","doi":"10.1080/15592324.2023.2276611","DOIUrl":"10.1080/15592324.2023.2276611","url":null,"abstract":"<p><p>Salt stress is a prevailing abiotic stress in nature, with soil salinization becoming a pressing issue worldwide. High soil salinity severely hampers plant growth and leads to reduced crop yields. Hydrogen sulfide (H<sub>2</sub>S), a gas signal molecule, is known to be synthesized in plants exposed to abiotic stress, contributing to enhanced plant stress resistance. To investigate the impact of sodium hydrosulfide hydrate (NaHS, a H<sub>2</sub>S donor) on millet's response to salt stress, millet seedlings were subjected to pretreatment with 200 μM NaHS, followed by 100 mM NaCl stress under soil culture conditions. The growth, osmotic adjustment substances, antioxidant characteristics, membrane damage, and expression levels of related genes in millet seedlings were detected and analyzed. The results showed that NaHS pretreatment alleviated the inhibition of salt stress on the growth of foxtail millet seedlings, increased the proline content and antioxidant enzyme activities, as well as the expression levels of <i>SiASR4</i>, <i>SiRPLK35</i> and <i>SiHAK23</i> genes under salt stress. These findings demonstrated that NaHS pretreatment can enhance salt tolerance in foxtail millet seedlings by regulating the content of osmotic adjustment substances and antioxidant enzyme activity, reducing electrolyte permeability, and activating the expression of salt-resistant genes.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"18 1","pages":"2276611"},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10623892/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71430656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trees in trees a report from remote Australia.","authors":"Jane Pye","doi":"10.1080/15592324.2023.2286392","DOIUrl":"10.1080/15592324.2023.2286392","url":null,"abstract":"<p><p>Anemochory or Ornithochory does not adequately explain the amount, size or distribution of woody epiphytes here in outback NSW Australia. In a semi-arid ecosystem, epiphytes should be short-lived and randomly dispersed not clustered around old Aboriginal campsites or along their ancient paths aka songlines. These enduring trees in trees we call TinTs, have been here much longer than European Australians. We are hoping to attract archaeobotanical or ethnobotanical research to help us recover the knowledge of the ancestors or at least assist us in protecting these arboreal oddities from future resource extraction activities.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"18 1","pages":"2286392"},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10761035/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138500600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiangdi Li, Yating Chen, Rui Zhang, Bin Wu, Guiqing Xiao
{"title":"Expression identification of three <i>OsWRKY</i> genes in response to abiotic stress and hormone treatments in rice.","authors":"Jiangdi Li, Yating Chen, Rui Zhang, Bin Wu, Guiqing Xiao","doi":"10.1080/15592324.2023.2292844","DOIUrl":"10.1080/15592324.2023.2292844","url":null,"abstract":"<p><p>WRKY transcription factors are critical for plant growth, development, and adaptation to stress. This paper focuses on the expression characteristic to abiotic stress and phytohormones of <i>OsWRKY24</i>, <i>OsWRKY53</i>, and <i>OsWRKY70</i>. Three OsWRKY TFs contained two conserved domains and there were multiple <i>cis</i>-elements in response to adversity stress and hormone signaling in their promoters. Real-time PCR analysis revealed their widespread expression in normal tissues during seedling and heading stages. Under various stresses such as darkness, low temperature, salt, and drought, or treatment with hormones like ABA, SA, MeJA, and GA, transcript levels of these genes had changed significantly in wild-type seedlings. The expression level of <i>OsWRKY24</i> was upregulated by darkness, cold, SA, and MeJA but downregulated by salt, drought, ABA, and GA treatments. The transcripts of <i>OsWRKY53</i> were induced by darkness, low-temperature, salt, drought, ABA, and JA, while inhibited by SA and GA. In addition, <i>OsWRKY70</i> expression level was elevated under darkness, low-temperature, SA, and JA but suppressed with salt, drought, ABA, and GA. These findings provide valuable insights into the regulatory mechanisms by which WRKY TFs adapt to stress via plant-hormone signaling.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"18 1","pages":"2292844"},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10730230/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138816103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CPK12 and Ca<sup>2+</sup>-mediated hypoxia signaling.","authors":"Santosh Kumar Upadhyay","doi":"10.1080/15592324.2023.2273593","DOIUrl":"10.1080/15592324.2023.2273593","url":null,"abstract":"<p><p>Hypoxia triggers reactive oxygen species (ROS)-induced elevation in cytoplasmic calcium (Ca<sup>2+</sup>) in the plant cells. Calcium-dependent protein kinase 12 (CPK12) acts as a sensor to recognize the Ca<sup>2+</sup> signature and is activated by autophosphorylation. Then, the CPK12 moves into the nucleus with the help of phosphatidic acid (PA) and phosphorylates ERF-VII family proteins that activate hypoxia signaling and response. The study provides a novel mechanism of hypoxia signaling in plants. Moreover, the mechanism of hypoxia-specific Ca<sup>2+</sup> signature generation remains elusive.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"18 1","pages":"2273593"},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10761129/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50159663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Metabolomics analysis of quality components metabolism during the growth process of pepino (<i>Solanum muricatum</i>) fruit.","authors":"Wenwen Zhao, Xuemei Sun, Lihui Wang, Zhu Sun, Huajing Zhang, Qiwen Zhong, Shipeng Yang","doi":"10.1080/15592324.2023.2283363","DOIUrl":"10.1080/15592324.2023.2283363","url":null,"abstract":"<p><p>Pepino (<i>Solanum muricatum</i>), a horticultural crop that has experienced significant growth in the highlands of China over the past two decades, is widely embraced by consumers due to its distinctive taste and nutritional advantages. This study focused on the cultivar 'Qingcanxiang' of pepino grown on the Qinghai-Tibetan Plateau was analyzed using UPLC-QTOF-MS and RNA-seq transcriptome sequencing. Fruit samples were collected at three distinct stages of development, and the results of the metabolomics and transcriptomics were compared and correlated. The study's findings indicate that the 'Qingcanxiang' fruit contained a total of 187 metabolites, comprising 12 distinct categories of compounds, including amino acids and their derivatives, organic acids, sugars and alcohols, phenols and phenolic acids. Of these metabolites, 94 were identified as differential. Significant variations in nutrient composition were observed across the three growth stages of the fruit. Specifically, the stage spanning from the growth to the maturation was identified as the critical stages for nutrient accumulation and flavor development. Transcriptome sequencing analysis revealed a set of highly associated genes between aspartate and quinic acid, namely <i>SIR2</i>, <i>IRAK4</i>, <i>RP-L29</i>, and <i>CCNH</i>. These genes are potentially involved in the regulation of both amino acid and phenolic acid synthesis. Through the application of metabolomics and transcriptomics, this investigation elucidates the alterations in metabolites and the underlying molecular regulatory mechanisms of pepino fruits during three growth stages. The findings furnish a theoretical foundation for the evaluation of nutritional quality and the enhancement of breeding strategies for pepino.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"18 1","pages":"2283363"},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10761028/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136400904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gyeongik Ahn, Yeong Jun Ban, Gyeong-Im Shin, Song Yi Jeong, Ki Hun Park, Woe-Yeon Kim, Joon-Yung Cha
{"title":"Ethylene enhances transcriptions of asparagine biosynthetic genes in soybean (<i>Glycine max</i> L. Merr) leaves.","authors":"Gyeongik Ahn, Yeong Jun Ban, Gyeong-Im Shin, Song Yi Jeong, Ki Hun Park, Woe-Yeon Kim, Joon-Yung Cha","doi":"10.1080/15592324.2023.2287883","DOIUrl":"10.1080/15592324.2023.2287883","url":null,"abstract":"<p><p>Soybean, a vital protein-rich crop, offers bioactivity that can mitigate various chronic human diseases. Nonetheless, soybean breeding poses a challenge due to the negative correlation between enhanced protein levels and overall productivity. Our previous studies demonstrated that applying gaseous phytohormone, ethylene, to soybean leaves significantly boosts the accumulation of free amino acids, particularly asparagine (Asn). Current studies also revealed that ethylene application to soybeans significantly enhanced both essential and non-essential amino acid contents in leaves and stems. Asn plays a crucial role in ammonia detoxification and reducing fatigue. However, the molecular evidence supporting this phenomenon remains elusive. This study explores the molecular mechanisms behind enhanced Asn accumulation in ethylene-treated soybean leaves. Transcriptional analysis revealed that ethylene treatments to soybean leaves enhance the transcriptional levels of key genes involved in Asn biosynthesis, such as aspartate aminotransferase (AspAT) and Asn synthetase (ASN), which aligns with our previous observations of elevated Asn levels. These findings shed light on the role of ethylene in upregulating Asn biosynthetic genes, subsequently enhancing Asn concentrations. This molecular insight into amino acid metabolism regulation provides valuable knowledge for the metabolic farming of crops, especially in elevating nutraceutical ingredients with non-genetic modification (GM) approach for improved protein content.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"18 1","pages":"2287883"},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10761183/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138465253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jéssica K S Pachú, Francynes C O Macedo, José B Malaquias, Francisco S Ramalho, Ricardo F Oliveira, Wesley A C Godoy, Angélica S Salustino
{"title":"Electrical signalling and plant response to herbivory: A short review.","authors":"Jéssica K S Pachú, Francynes C O Macedo, José B Malaquias, Francisco S Ramalho, Ricardo F Oliveira, Wesley A C Godoy, Angélica S Salustino","doi":"10.1080/15592324.2023.2277578","DOIUrl":"10.1080/15592324.2023.2277578","url":null,"abstract":"<p><p>For a long time, electrical signaling was neglected at the expense of signaling studies in plants being concentrated with chemical and hydraulic signals. Studies conducted in recent years have revealed that plants are capable of emitting, processing, and transmitting bioelectrical signals to regulate a wide variety of physiological functions. Many important biological and physiological phenomena are accompanied by these cellular electrical manifestations, which supports the hypothesis about the importance of bioelectricity as a fundamental 'model' for response the stresses environmental and for activities regeneration of these organisms. Electrical signals have also been characterized and discriminated against in genetically modified plants under stress mediated by sucking insects and/or by the application of systemic insecticides. Such results can guide future studies that aim to elucidate the factors involved in the processes of resistance to stress and plant defense, thus aiding in the development of successful strategies in integrated pest management. Therefore, this mini review includes the results of studies aimed at electrical signaling in response to biotic stress. We also demonstrated how the generation and propagation of electrical signals takes place and included a description of how these electrical potentials are measured.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":"18 1","pages":"2277578"},"PeriodicalIF":0.0,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10732603/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138489422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}