Journal of Plant Research最新文献

{"title":"A long-term common garden experiment reveals geocytotype-dependent succession of plant community invaded by Solidago canadensis.","authors":"Dongyan Feng, Jiliang Cheng, Zhongsai Tian, Xianghong Yang, Lei Lin, Huan Zhang, Zhen Wang, Sheng Qiang","doi":"10.1007/s10265-025-01668-y","DOIUrl":"https://doi.org/10.1007/s10265-025-01668-y","url":null,"abstract":"<p><p>Invasive alien plants can act as \"drivers\", actively modifying plant community succession, or as \"passengers\", passively persisting without significantly affecting vegetation dynamics. Canada goldenrod (Solidago canadensis) is considered a 'passenger' species, transiently dominating old-field communities in Europe, while research in Asia indicates that different geo-cytotypes of S. canadensis influence succession in a cytogeography-dependent manner, with introduced polyploids acting as drivers. However, whether these effects are temporary or long-lasting remains unclear, necessitating long-term observation. We conducted a 10-year common garden experiment to investigate the impact of different geo-cytotypes of S. canadensis on succession in old-field plant communities. Both diploid and native polyploid populations subjected to regular mowing, gradually disappeared, while herbaceous plant communities transitioned to woody communities by the fourth year. In contrast, introduced polyploid S. canadensis co-dominated alongside woody plants until the eighth year. By the tenth year, all communities, including those initially dominated by introduced polyploids, were primarily composed of woody species. While the geo-cytotype influenced the rate of succession, it did not alter its course. These findings suggest that, regardless of geo-cytotype, S. canadensis ultimately functions as a passenger in the long-term succession of invaded plant communities.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145124884","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":"Ontogeny and glandular features of Alexa grandiflora flowers offer evolutionary insights into the Angylocalyx clade: a Papilionoideae (Leguminosae) lineage with non-papilionaceous corolla.","authors":"Guilherme Sousa da Silva, Viviane Gonçalves Leite, Marcus José de Azevedo Falcão, Juliana Villela Paulino, Simone Pádua Teixeira, Vidal de Freitas Mansano","doi":"10.1007/s10265-025-01669-x","DOIUrl":"https://doi.org/10.1007/s10265-025-01669-x","url":null,"abstract":"<p><p>Alexa grandiflora Ducke is a papilionoid legume tree native to the Brazilian Amazon Forest. It belongs to the early-diverging Angylocalyx clade within the subfamily Papilionoideae, which is characterized by keel flowers, with some genera having flowers other than typical papilionaceous ones. This study describes the floral organography, organogenesis, and secretory structures of A. grandiflora and compares its floral morphology with that of three species from different genera within the Angylocalyx clade to deepen the understanding of the clade's floral structure and, by extension, the broader Papilionoideae subfamily. To conduct the study, floral buds and flowers from A. grandiflora were collected and processed for surface and anatomical studies, and flowers from herbarium specimens of Castanospermum australe, Xanthocercis madagascariensis and Angylocalyx oligophyllus to elucidate the clade's floral evolution and its implications for Papilionoideae diversity. Floral buds and flowers of A. grandiflora were analyzed using surface and anatomical techniques, while herbarium specimens of the comparative taxa were examined via scanning electron microscopy. In A. grandiflora, the apical meristem of the racemose inflorescence primary axis produces first-order bracts acropetally in a helical order. Sepal initiation is unidirectional, petal initiation is simultaneous, with the adaxial petal growing faster than the others. Antesepalous stamens appear simultaneously and concurrently with the carpel, while antepetalous stamens emerge simultaneously. Floral secretion of nectar, terpenes, and oleoresin supports phyllostomid bat pollination in Alexa species, consistent with the previously proposed association between intense nectar and terpene production and chiropterophily in the genus. Comparative analysis reveals that the Angylocalyx clade shares key floral traits, including a gamosepalous calyx, an enlarged adaxial petal, and similarly shaped lateral and abaxial petals. However, variations are observed in the type of inflorescence and in the level of insertion of the filament in the anther, highlighting the floral diversity within the clade.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145124958","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":"High-fertility individuals observed in the progeny of low-fertility Nicotiana F₁ interspecific hybrid and mechanistic insights into their appearance.","authors":"Kouki Nakata, Motoki Kanekatsu, Tetsuya Yamada","doi":"10.1007/s10265-025-01667-z","DOIUrl":"10.1007/s10265-025-01667-z","url":null,"abstract":"<p><p>Interspecific hybrids with different genomes from their parents often result in hybrid sterility due to meiotic failure. This is a typical example of reproductive isolation that limits interspecific hybridization. Although a few progenies can be obtained in such cases, the inheritance pattern of fertility has not yet been studied in detail. Therefore, using Nicotiana as a model, the fertility of hybrids derived from crosses between species with different genomes was investigated up to the F₃ generation. In the F₂ population, which developed from selfing seeds obtained from the low-fertility F₁ generation, extremely large variation in pollen viability (1.2-82.9%, average 43.2%), fruit set rate (0-100%, average 69.3%), and seed number (16-185, average 63.5) were observed among individuals. In addition, some of the F₃ individuals from F₂ individuals with low fertility were high-fertility. Furthermore, it was suggested that not only pollen viability, but also pistil length and number of ovules may be involved in the variation in fertility. Genome-wide genotyping using GRAS-Di technology revealed that the genomes of high-fertility F₂ individuals had fewer heterozygous genomic regions, leading to a hypothesis regarding the association between the proportion of heterozygous regions in the genome and pollen viability. To our knowledge, this study represents the first experimental observation that high-fertility F₂ individuals can be obtained from interspecific F₁ hybrids carrying different genomes with extremely low fertility without change of ploidy. These findings can be considered basic insights that enhance our understanding of plant speciation and adaptation.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958333","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":"Effects of water availability on floral traits and pollinators in a columnar cactus endemic to the Atacama Desert, Chile.","authors":"Daniel Piñones-Tapia, Patricia C Guerra, Antoine Touret, Gerardo O Gutiérrez, Jaime Pizarro-Araya, Ernesto Gianoli","doi":"10.1007/s10265-025-01655-3","DOIUrl":"10.1007/s10265-025-01655-3","url":null,"abstract":"","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"745-759"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144567585","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":"A natural 294-bp indel in the VviHKT1;1 proximal promoter influences the salt resistance of VviHKT1;1-overexpressing Arabidopsis.","authors":"Fengjie Wang, Xiaoying Gong, Xuenan Zhang, Rong Zhao, Ning Han, Zhen Yang","doi":"10.1007/s10265-025-01656-2","DOIUrl":"10.1007/s10265-025-01656-2","url":null,"abstract":"","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"873-886"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144618689","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":"Machine learning assisted analysis of rice flower opening times using a low-cost time-lapse camera.","authors":"Tomoaki Muranaka, Moeka Matsuura, Kan Yokoyama, Yuuki Gatayama, Satoru Taura, Katsuyuki Ichitani, Eiji Kanda","doi":"10.1007/s10265-025-01650-8","DOIUrl":"10.1007/s10265-025-01650-8","url":null,"abstract":"<p><p>Flower opening time (FOT) is a key trait for successful reproduction and reproductive isolation. In crop science, FOT is critical for stress avoidance and efficient breeding practices. This study developed a system for the automatic detection of rice flower openings and FOT estimation by integrating a low-cost time-lapse camera with machine learning technology. This approach enabled high-resolution monitoring of flowering dynamics in two cultivars: the japonica cultivar Taichung 65 (T65) and the indica cultivar IR24. The system accurately identified regions containing open flowers, and the estimated FOTs varied within a 3-h range, with a root mean square error of approximately 30 min compared to manual detection. A significant difference in estimated FOTs between IR24 and T65 demonstrated the system's potential for genetic screening applications. FOT of both cultivars exhibited a significant negative correlation with daily mean temperature. Notably, a temperature-sensitive period was identified in the morning, suggesting that temperature influences not only flower opening but also preceding physiological processes such as panicle and spikelet development. This study presents a novel approach to investigating FOT dynamics in rice and provides insights into the interaction between environmental factors and internal regulatory mechanisms governing this critical reproductive trait.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"733-743"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12441105/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144285049","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":"Insights into chloroplast genome structure and phylogenetic position of the Lacquer tree Toxicodendron trichocarpum (Anacardiaceae: Rhoideae).","authors":"Yujie Xu, Liya Niu, M James C Crabbe, Xu Su, Zhumei Ren","doi":"10.1007/s10265-025-01661-5","DOIUrl":"10.1007/s10265-025-01661-5","url":null,"abstract":"<p><p>The lacquer tree Toxicodendron trichocarpum (Miq) Kuntze (Anacardiaceae: Rhoideae), which is known for its abundance of urushiol, produces a high-quality raw lacquer. There have been five complete chloroplast genomes reported in the genus Toxicodendron, while, only two T. trichocarpum genes were sequenced and used for phylogenetic and biogeographic analysis. In this study, we sequenced the T. trichocarpum whole genome on the Illumina HiSeq 4000 platform and investigated its complete chloroplast genome characteristics. Our results showed that the length of the chloroplast genome of T. trichocarpum was 159,959 bp with a GC content of 37.9%. The genome was found to comprise a large single-copy region (LSC) spanning 87,964 bp, a small single-copy region (SSC) of 18,979 bp, and two inverted repeat regions (IRa/IRb) of equal length, each measuring 26,508 bp. A total of 134 genes were annotated, consisting of 89 protein-coding genes, 37 tRNA genes and eight rRNA genes. Altogether, 84 chloroplast simple sequence repeats (SSRs) were identified, predominantly composed of single nucleotides (A/T), with a clear preference for A/T. By comparing the chloroplast genomes of the genus Toxicodendron, six relatively highly variable regions were identified for future molecular marker development. Phylogenetic analyses conducted within the tribe Rhoideae strongly supported the monophyly of the genus Toxicodendron. The species T. trichocarpum was sister to T. diversilobum, with a high level of support at 99%, forming a clade with T. griffithii and T. vernicifluum. Divergence time estimation suggested that Toxicodendron was originated at 42.47 mya (95% HPD: 41.99-42.99 mya) and T. trichocarpum occurred concomitantly with the sister species T. diversilobum at approximately 16.33 mya. We first reported the complete chloroplast genome of T. trichocarpum and comparative analysis of the Toxicodendron species, which will provide valuable genomic information for accurate classification and evolutionary process of this important taxa in the future.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"719-732"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144718121","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":"Enhancing Festuca chloroplast genome resources.","authors":"Junying Liu, Pei Tian","doi":"10.1007/s10265-025-01649-1","DOIUrl":"10.1007/s10265-025-01649-1","url":null,"abstract":"<p><p>Festuca L. is a perennial plant of the Poaceae family, known for its good palatability and strong tolerance. The characteristics of the chloroplast genomes of six native Festuca species on the Qinghai-Tibet Plateau were analyzed, including four F. sinensis germplasms from Gansu (1), Qinghai (57), Sichuan (111), and Tibet (10-85); F. rubra subsp. arctica; F. kryloviana; F. nitidula; F. valesiaca subsp. sulcata; and F. elata. The chloroplast genome consists of 127 genes, including 4 ribosomal RNA (rRNA) genes, 38 transfer RNA (tRNA) genes, and 83 protein-coding genes. The number of identified SSRs based on 16 shared optimal ciphers of the four F. sinensis germplasms were 48, 50, 49, and 38, respectively, with the majority being single nucleotide repeat sequences. The phylogenetic tree shows that F. nitidula, F. elata, and one germplasm of F. sinensis from Tibet are grouped into the same clade, while three germplasms of F. sinensis from Gansu, Qinghai, and Sichuan are grouped into another clade. F. valesiaca subsp. sulcata, F. ovina, and F. brevipila are grouped into the same clade. F. rubra subsp. arctica and F. rubra are clustered into one branch. This study clarifies the taxonomy of F. sinensis within the genus, providing a reference for subsequent research on the genetic diversity, genetic structure, and phylogeny of Festuca plants.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"701-717"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144159671","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":"A unique phytochrome B gene in Cuscuta campestris and its responses during the initial stage of haustorium formation.","authors":"Toshiya Yokoyama, Mariko Asaoka, Kazuhiko Nishitani","doi":"10.1007/s10265-025-01653-5","DOIUrl":"10.1007/s10265-025-01653-5","url":null,"abstract":"<p><p>Cuscuta, a genus of stem-parasitic plants, requires specific light and touch stimuli for host recognition and haustorium formation. Blue and far-red light promote parasitism, while red light inhibits it, but the roles played by light-responsive genes in the early stages of Cuscuta parasitism remain largely unexplored. This study utilized an in vitro C. campestris haustorium induction system to investigate this issue. RNA-sequence analysis revealed a group of differentially expressed genes that responded to the initiation of haustorium formation. Genes associated with light-signaling pathways, including phytochromes (PHYs), phytochrome-interacting factors (PIFs), and homeodomain-leucine zipper I/II transcription factors, were specifically up or downregulated in plants exposed to light for 4 h. Phylogenetic analysis demonstrated that two distinct forms of the PHYB gene, CcPHYB1 and CcPHYB2, were present in all sequenced Cuscuta species. CcPHYB2 was not expressed under normal light conditions, but was specifically upregulated under light regimes inducing haustorium formation; by contrast, CcPHYB1 exhibited non-light-dependent expression. Furthermore, the induction of haustorium formation by far-red light was canceled by red light exposure but could be re-activated by subsequent re-exposure to far-red light. The levels of expression of CcPHYB2, CcPIF1, CcPIF4, CcHOMEOBOX FROM ARABIDOPSIS THALIANA 3 (CcHAT3), CcHOMEOBOX 2 (CcHB2) and CcHB13 varied under different haustorium-inducing light conditions. Expression of these genes altered significantly upon exposure to blue and far-red light, but these changes were reversed in plants exposed to red light. These findings highlight the pivotal role of light-responsive signaling during the early stages of parasitism, providing valuable insights into the molecular mechanisms and evolution of light-mediated host recognition and parasitism in Cuscuta species.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"857-872"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12441084/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144484782","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":"Flora volatile profiles of plants visited by Vespa velutina: a preliminary assessment in the interaction of plant-insect.","authors":"M Shantal Rodríguez-Flores, Ana Diéguez-Antón, M Carmen Seijo-Coello, Olga Escuredo","doi":"10.1007/s10265-025-01645-5","DOIUrl":"10.1007/s10265-025-01645-5","url":null,"abstract":"<p><p>Plants function within complex ecological communities, relying on chemical signals to mediate interactions with other organisms. The foraging behaviour of insects, such as the invasive hornet Vespa velutina nigrithorax, introduced into northwestern Spain over a decade ago, may be influenced by floral volatiles. This hornet detects plant secondary metabolites, including semiochemicals, which aid in locating nectar, carbohydrates, prey, mating sites, and other resources. Understanding the volatile organic compounds (VOCs) emitted by plants visited by V. velutina may help to develop targeted control strategies. The aim of this study was to identify and analyse the volatile compounds emitted by 18 plant species frequented by V. velutina nigrithorax in the province of Ourense, northwest Spain. Solid-phase microextraction (SPME) coupled with gas chromatography-mass spectrometry (GC-MS) was used in this study. A total of 110 VOCs were identified, of which 21 compounds were abundant in the samples, with terpenes being the most abundant. Furthermore, a PLS-DA analysis selected 33 volatile compounds with variable importance scores (VIPs) greater than 1, in particular methylanthranilate with a value of 1.81. Eleven of these compounds were found to be abundant in the analysed samples, including (Z)-β-ocimene; 1-octen-3-ol; 3-hexen-1-ol, acetate, (Z)-; 3-octanone; eugenol; linalool; methyl salicylate; o-cymene; α-farnesene; α-terpineol and β-farnesene. The selection of these compounds provides valuable insights into plant-insect interactions, highlighting their diverse roles as plant volatiles in mediating insect behaviour and underlining their potential as targets for environmentally friendly pest management strategies.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"807-823"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12441083/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144078559","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}