Plant Biology最新文献

{"title":"Dark side of anthocyanin pigmentation","authors":"K. Wolff,&nbsp;B. Pucker","doi":"10.1111/plb.70047","DOIUrl":"10.1111/plb.70047","url":null,"abstract":"<p>Dark pigmentation can be observed in various parts of the plant, ranging from foliage to petals and berries. Here, we review the available knowledge about dark pigmentation in plants and the potential for biotechnological applications. The molecular basis of black pigmentation appears to vary among species, with anthocyanins playing a significant role, although specific anthocyanin types and their mechanisms differ. These findings suggest that the development of phenotypes is species-specific or varies between larger taxonomic groups; this is further supported by the polyphyletic nature of dark pigmentation. Additionally, several different regulatory mechanisms have been described for the occurrence of dark pigmentation. First, the repression or knockout of the competing flavone biosynthesis has been shown to lead to darker pigmentation while another mechanism is based on the activation and upregulation of the anthocyanin biosynthesis genes in the presence of MYB transcription factors. Potential ecological functions of dark pigmentation were identified as protection of the photosynthesis apparatus, camouflage against herbivores, and the attraction of pollinators. Promising industrial applications include microbial factories for the production of natural food colourants, induction of novel phenotypes for the ornamental plant industry and, lastly, increase of anthocyanins within agriculturally relevant crops. Understanding the genetic basis of dark pigment accumulation would facilitate biotechnological and agricultural applications.</p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 6","pages":"935-947"},"PeriodicalIF":3.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.70047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144172150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deciphering organ-specific chemical changes following insect herbivory in Populus nigra using comparative metabolomics","authors":"S. Yepes-Vivas,&nbsp;M. Popp,&nbsp;M. Reichelt,&nbsp;J. Gershenzon,&nbsp;J.-P. Schnitzler,&nbsp;S. B. Unsicker","doi":"10.1111/plb.70032","DOIUrl":"10.1111/plb.70032","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 5","pages":"834-846"},"PeriodicalIF":4.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.70032","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Overexpression of jojoba wax ester synthase in poplar increases foliar lipid accumulation, alters stomatal conductance, and increases water use efficiency","authors":"A. Amirkhosravi,&nbsp;G.-J. Strijkstra,&nbsp;A. Keyl,&nbsp;F. Häffner,&nbsp;U. Lipka,&nbsp;C. Herrfurth,&nbsp;I. Feussner,&nbsp;A. Polle","doi":"10.1111/plb.70056","DOIUrl":"10.1111/plb.70056","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 6","pages":"1006-1021"},"PeriodicalIF":3.6,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.70056","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of arbuscular mycorrhizal fungi on root architecture and ultrastructure of Hordeum jubatum under the interactive impact of nitrogen deposition and cold stress","authors":"J. Han,&nbsp;F. Wang,&nbsp;D. Dmitrii,&nbsp;J. Tian,&nbsp;P. Han,&nbsp;Z. Tan,&nbsp;J. Zhang,&nbsp;J. Lin,&nbsp;J. Wang","doi":"10.1111/plb.70048","DOIUrl":"10.1111/plb.70048","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 6","pages":"1107-1119"},"PeriodicalIF":3.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factors affecting seedling establishment in a warm-temperate secondary forest affected by oak wilt disease","authors":"Celegeer,&nbsp;N. Watanabe,&nbsp;K. Otani,&nbsp;T. Okada,&nbsp;M. Matsushita,&nbsp;M. Nakagawa","doi":"10.1111/plb.70051","DOIUrl":"10.1111/plb.70051","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 6","pages":"1097-1106"},"PeriodicalIF":3.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.70051","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neighbourhood flower diversity increases reproductive success of Lantana hypoleuca Briq (Verbenaceae)","authors":"M. D. de Amorim,&nbsp;J. P. R. Borges,&nbsp;A. C. P. Machado,&nbsp;A. R. Rech,&nbsp;P. K. Maruyama,&nbsp;P. J. Bergamo","doi":"10.1111/plb.70044","DOIUrl":"10.1111/plb.70044","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 6","pages":"1158-1164"},"PeriodicalIF":3.6,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.70044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144126107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bees, flowers and UV","authors":"K. Lunau,&nbsp;M. G. G. Camargo,&nbsp;Z.-X. Ren","doi":"10.1111/plb.70050","DOIUrl":"10.1111/plb.70050","url":null,"abstract":"<p>Ultraviolet light shining on flowers has various effects. In this review we assess functions of UV pigments and UV reflection patterns in flowers, including visual signalling by reflectance, fluorescence, and gloss, as well as protection against UV radiation. UV patterns originate from UV reflection and absorption in different floral parts and are visible to most pollinators, but invisible to humans. UV patterns can guide pollinators towards a floral reward, such as the centre-outward UV pattern, the so-called UV bull's eye. However, the diversity and complexity of floral colour patterns is much higher and may or may not include UV. For flower visitors, reflected UV light is merely a component of their colour vision rather than a UV signal processed separately. Yet, to humans it is a challenge to detect and represent UV reflectance in flowers. Advantages and limits of spectrophotometry, UV photography and false colour photography in bee view are discussed. Besides floral pigments causing absorption and fluorescence, flower signals can be produced by epidermal structures, i.e. smooth or conical epidermal cells, causing specular reflection (gloss) or refraction of light, and light-scattering structures causing reflection. Exposed nectar, pollen and stamens also display visual signals including UV. Finally, the absorption of UV light by pollen pigments protects the precious DNA inside the pollen grain from harmful UV radiation. UV-absorbing central parts on flowers also protect flower DNA by impeding the reflection of UV light from petals onto stamens and pollen. We briefly discuss how flower UV patterns may change in response to increasing global UV radiation, potentially influencing plant pollination.</p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 6","pages":"948-961"},"PeriodicalIF":3.6,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.70050","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144118479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time-series multi-omics analysis of micronutrient stress in Sorghum bicolor reveals iron and zinc crosstalk and regulatory network conservation.","authors":"A Mishra, A Bhat, S Kumari, R Sharma, J Braynen, D Tadesse, S El Alaoui, S Seaver, N Grosjean, D Ware, M Xie, T Paape","doi":"10.1111/plb.70038","DOIUrl":"https://doi.org/10.1111/plb.70038","url":null,"abstract":"<p><p>Micronutrient stress impacts growth, biomass production, and grain yield in crops. Multi-omics studies are valuable resources in identifying genes for functional studies and trait improvement, such as accumulation of Fe or Zn under deficient or excess conditions for bioenergy or grain agriculture. We conducted transcriptomics and ionomics analyses on Sorghum bicolor BTx623, grown under Fe and Zn limited and excess conditions over a 21-day period. To identify early and late transcriptional response in roots and leaves, 180 RNAseq libraries were sequenced for differential expression and co-expression network analyses. Fe and Zn accumulation was measured using ICP-MS at each time point, and a fluorometer was used to estimate chlorophyll content in leaves. Among the four treatments, Fe limitation and Zn excess resulted in the largest phenotypic effects and transcriptional response in roots and leaves. Several of the reduction (Strategy I) and chelation (Strategy II) strategy genes that improve bioavailability of Fe and Zn in plant roots often used by non-grass and grass species, respectively, were differentially expressed. Gene regulatory network (GRN) analysis of roots revealed enrichment of genes from Fe limiting and Zn excess which strongly connect to homologues of SbFIT, SbPYE, and SbBTS as hub genes. The GRN for leaf responses showed homologues of SbPYE and SbBTS as hubs connecting genes for chloroplast biosynthesis, Fe-S cluster assembly, photosynthesis, and ROS scavenging. Expression analyses suggest sorghum uses Strategy II genes for Fe and Zn uptake, as expected, but can also utilize Strategy I genes, which may be advantageous in variable moisture environments. We found strong overlap between Fe and Zn responsive GRNs, indicative of micronutrient crosstalk. We also found conservation of root and leaf GRNs, and known homologous genes suggest strong constraints on homeostasis networks in plants. These data will provide a resource for functional genetics to enhance micronutrient transport in sorghum, and opportunities to conduct further comparative GRN analysis across diverse crops species.</p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":" ","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144118482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spore germination response to capsule size and smoke: co-expression of bet-hedging and best-bet strategies in peatland mosses","authors":"S. Yusup,&nbsp;S. Sundberg,&nbsp;W. Ilghar,&nbsp;A. Mallik,&nbsp;B.-B. Fan,&nbsp;J.-Q. Zhang,&nbsp;J.-Y. Wang,&nbsp;Z.-J. Bu","doi":"10.1111/plb.70049","DOIUrl":"10.1111/plb.70049","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 6","pages":"1087-1096"},"PeriodicalIF":3.6,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144118480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Are lichens biocompasses? Revisiting an old prediction using new techniques","authors":"B. B. S. Nunes,&nbsp;A. Braga,&nbsp;M. E. M. Marques,&nbsp;I. Lopes,&nbsp;J. C. F. Cardoso","doi":"10.1111/plb.70055","DOIUrl":"10.1111/plb.70055","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":220,"journal":{"name":"Plant Biology","volume":"27 6","pages":"1150-1157"},"PeriodicalIF":3.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/plb.70055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144092305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}