NPJ science of plantsPub Date : 2025-01-01Epub Date: 2025-07-01DOI: 10.1038/s44383-025-00001-9
Yumin Kan, Vitaly Citovsky
{"title":"PDLP5, a plasmodesmata permeability regulator, can traffic between plant cells.","authors":"Yumin Kan, Vitaly Citovsky","doi":"10.1038/s44383-025-00001-9","DOIUrl":"10.1038/s44383-025-00001-9","url":null,"abstract":"<p><p>Plasmodesmata (PD) are membranous nanopores that connect the cytoplasm of neighboring plant cells and enable the cell-to-cell trafficking of nutrients and macromolecules, as well as invading viruses. PD plays a critical role in regulating intercellular communication, contributing to plant development, environmental responses, and interactions with viral pathogens. The PD proteome includes two major types of functional proteins, PD callose binding proteins (PDCBs) and PD-located proteins (PDLPs), involved in manipulating the size of PD pores. Most studies of PDCBs and PDLPs focused on their effects on the PD transport of different cargo molecules; yet, whether these PD proteins themselves have the capacity for cell-to-cell movement remains largely obscure. Here, we addressed this question by demonstrating that PDLP5, but not PDLP1 and PDLP2, can move efficiently from cell to cell in <i>Nicotiana benthamiana</i> and that this movement involves the native transmembrane domain of PDLP5. These observations would be useful for a better understanding of the complexity of the PDLP5 protein function during the processes of PD transport.</p>","PeriodicalId":520932,"journal":{"name":"NPJ science of plants","volume":"1 1","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236089/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144593834","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}
NPJ science of plantsPub Date : 2025-01-01Epub Date: 2025-07-01DOI: 10.1038/s44383-025-00002-8
Aline Monzer, Jiří Friml
{"title":"Historical and mechanistic perspective on ABP1-TMK1-mediated cell surface auxin signaling.","authors":"Aline Monzer, Jiří Friml","doi":"10.1038/s44383-025-00002-8","DOIUrl":"10.1038/s44383-025-00002-8","url":null,"abstract":"<p><p>The plant hormone auxin regulates growth and development through at least two distinct signaling pathways. The nuclear pathway, involving TIR1/AFB receptors, mediates transcription; whereas the cell surface ABP1-TMK1 auxin perception triggers global ultrafast phosphorylation response. Here, we revisit the rich history of the disputed ABP1 auxin receptor, highlighting recent findings of the involvement of TMKs and other molecular components and focusing on their role in auxin canalization-mediated development.</p>","PeriodicalId":520932,"journal":{"name":"NPJ science of plants","volume":"1 1","pages":"2"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12236088/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144593833","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}
NPJ science of plantsPub Date : 2025-01-01Epub Date: 2025-08-04DOI: 10.1038/s44383-025-00004-6
Manuel G Walde, Yann Vitasse, E M Wolkovich
{"title":"Rethinking the interpretation of spring phenological temperature sensitivity.","authors":"Manuel G Walde, Yann Vitasse, E M Wolkovich","doi":"10.1038/s44383-025-00004-6","DOIUrl":"10.1038/s44383-025-00004-6","url":null,"abstract":"<p><p>Recent publications showed a substantial decline in spring phenological responses of temperate trees to temperature increase and suggested this was evidence that warming has caused chilling and/or photoperiod to constrain phenology. We show that the apparent decrease in phenological sensitivity is mathematically expected under warming climates without any constraints from photoperiod or chilling. We substantiate the proposed mechanism using data from controlled conditions, simulations, and a long-term cherry blooming record series.</p>","PeriodicalId":520932,"journal":{"name":"NPJ science of plants","volume":"1 1","pages":"3"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12321564/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144796640","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}