Journal of Plant Research最新文献

{"title":"Two lineages of Lemna aequinoctialis (Araceae, Lemnoideae) based on physiology, morphology, and phylogeny.","authors":"Yuri Lee, Syou Kato, Jae Young Kim, Yoshiko Shimono, Takashi Shiga","doi":"10.1007/s10265-023-01509-w","DOIUrl":"10.1007/s10265-023-01509-w","url":null,"abstract":"<p><p>Lemna aequinoctialis Welw. is a widely spread species that has diverse physiological and molecular properties. Flower characteristics are important factors in deducing taxonomical status; however, owing to the rarity of flowering observations in Lemna, studying them has been a prolonged challenge. In this study, physiological and morphological analyses were conducted by inducing flowering, and molecular analysis was done based on the two chloroplast DNA loci (matK, atpF-atpH intergeneric spacer) of L. aequinoctialis sensu Landolt (1986) from 70 strains found in 70 localities in Japan, Korea, Thailand, and the US. In total, 752 flowering fronds from 13 strains were observed based on axenic conditions. Two different trends in flower organ development-protogyny and adichogamy-were detected in these strains. Their physiological traits were divided into two groups, showing different morphological features based on frond thickness, root cap, and anther sizes. Molecular analysis showed two lineages corresponding to two physiological groups. These were identified as L. aequinoctialis sensu Beppu et al. (1985) and L. aoukikusa Beppu et Murata based on the description of the nomenclature of L. aoukikusa. These were concluded as independent taxa and can be treated as different species. Furthermore, the distribution of L. aoukikusa is not only limited to Japan.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"359-376"},"PeriodicalIF":2.8,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139723075","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":"Phosphate environment and phosphate uptake studies: past and future.","authors":"Tetsuro Mimura, Robert Reid","doi":"10.1007/s10265-024-01520-9","DOIUrl":"10.1007/s10265-024-01520-9","url":null,"abstract":"<p><p>The present review explains briefly the importance of phosphorus in the biological activities and states that the most phosphorus of living organisms is absorbed by plants from the soil. Next, previous studies on the mechanisms of phosphate uptake by plants are reviewed as H⁺-dependent or Na⁺-dependent co-transport systems and the phosphate environment in which plants grow is discussed. The evolution of transporter genes and their regulation mechanisms of expression is discussed in relation to the phosphorus environment.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"307-314"},"PeriodicalIF":2.7,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11082026/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140189855","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":"The complete chloroplast genome sequence and phylogenetic relationship analysis of Eomecon chionantha, one species unique to China","authors":"Zhi Zhang, Guoshuai Zhang, Xinke Zhang, Huihui Zhang, Junbo Xie, Rui Zeng, Baolin Guo, Linfang Huang","doi":"10.1007/s10265-024-01539-y","DOIUrl":"https://doi.org/10.1007/s10265-024-01539-y","url":null,"abstract":"<p><i>Eomecon chionantha</i> Hance, an endemic species in China, has a long medical history in Chinese ethnic minority medicine and is known for its anti-inflammatory and analgesic effects. However, studies of <i>E. chionantha</i> are lacking. In this study, we investigated the characteristics of the <i>E. chionantha</i> chloroplast genome and determined the taxonomic position of <i>E. chionantha</i> in Papaveraceae via phylogenetic analysis. In addition, we determined molecular markers to identify <i>E. chionantha</i> at the molecular level by comparing the chloroplast genomes of <i>E. chionantha</i> and its closely related species. The complete chloroplast genomic information indicated that <i>E. chionantha</i> chloroplast DNA (178,808 bp) contains 99 protein-coding genes, 8 rRNAs, and 37 tRNAs. Meanwhile, we were able to identify a total of 54 simple sequence repeats through our analysis. Our findings from the phylogenetic analysis suggest that <i>E. chionantha</i> shares a close relationship with four distinct species, namely <i>Macleaya microcarpa</i>, <i>Coreanomecon hylomeconoides</i>, <i>Hylomecon japonica</i>, and <i>Chelidonium majus</i>. Additionally, using the Kimura two-parameter model, we successfully identified five hypervariable regions (ycf4-cemA, ycf3-trnS-GGA, trnC-GCA-petN, rpl32-trnL-UAG, and psbI-trnS-UGA). To the best of our knowledge, this is the first report of the complete chloroplast genome of <i>E. chionantha</i>, providing a scientific reference for further understanding of <i>E. chionantha</i> from the perspective of the chloroplast genome and establishing a solid foundation for the future identification, taxonomic determination and evolutionary analysis of this species.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":"67 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140637009","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":"Laboratory and field measurements of water relations, photosynthetic parameters, and hydration traits in macrolichens in a tropical lower montane rainforest in Thailand","authors":"Chaiwat Boonpeng, Marisa Pischom, Pawanrat Butrid, Sutatip Noikrad, Kansri Boonpragob","doi":"10.1007/s10265-024-01542-3","DOIUrl":"https://doi.org/10.1007/s10265-024-01542-3","url":null,"abstract":"<p>Ecophysiological studies of lichens in tropical Asia are rare, and additional studies can increase the understanding of lichen life in this region. The main aim of this study was to observe the relationships between water availability and photosynthetic parameters, as well as hydration trait parameters, in macrolichens during the rainy and dry seasons in a tropical forest. A total of 11 lichen species growing in a lower montane rainforest in Thailand were collected and studied. The results clearly showed that the specific thallus mass (STM), net photosynthetic rate (Pn), the potential quantum yield of primary photochemistry (Fv/Fm), chlorophyll content, and carotenoid content of almost all lichens were lower in the dry season than in the rainy season. Field measurements in the dry season revealed that only the foliose chlorolichen <i>Parmotrema tinctorum</i> was metabolically active and exhibited slight carbon assimilation. In the rainy season, all lichens started their photosynthesis in the early morning, reached maximal values, declined, and ceased when the thalli desiccated. The photosynthetically active period of the lichens was approximately 2–3 h in the morning, and the activities of the cyanolichens ended approximately 30 min after the chlorolichens. The hydration trait parameters, including the STM, maximal water content (WC_max), and water holding capacity (WHC), were greater in the cyanolichens. In addition, the maximal Pn (Pn_max) and optimal water content (WC_opt) for Pn were also greater in the cyanolichens, but the maximal Fv/Fm (Fv/Fm_max) was lower. The cyanolichens compensated for their inability to use humid air to restore photosynthesis by having higher water content and storage, higher photosynthetic rates, and longer photosynthetically active periods. This study provides additional insights into lichen ecophysiology in tropical forests that can be useful for lichen conservation.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140602317","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":"Chloroplast-actin filaments decide the direction of chloroplast avoidance movement under strong light in Arabidopsis thaliana","authors":"Masamitsu Wada, Takeshi Higa, Kaoru Katoh, Nobuko Moritoki, Tomonori Nakai, Yuri Nishino, Atsuo Miyazawa, Shinsuke Shibata, Yoshinobu Mineyuki","doi":"10.1007/s10265-024-01540-5","DOIUrl":"https://doi.org/10.1007/s10265-024-01540-5","url":null,"abstract":"<p>Chloroplast-actin (cp-actin) filaments are crucial for light-induced chloroplast movement, and appear in the front region of moving chloroplasts when visualized using GFP-mouse Talin. They are short and thick, exist between a chloroplast and the plasma membrane, and move actively and rapidly compared to cytoplasmic long actin filaments that run through a cell. The average period during which a cp-actin filament was observed at the same position was less than 0.5 s. The average lengths of the cp-actin filaments calculated from those at the front region of the moving chloroplast and those around the chloroplast periphery after stopping the movement were almost the same, approximately 0.8 µm. Each cp-actin filament is shown as a dotted line consisting of 4–5 dots. The vector sum of cp-actin filaments in a moving chloroplast is parallel to the moving direction of the chloroplast, suggesting that the direction of chloroplast movement is regulated by the vector sum of cp-actin filaments. However, once the chloroplasts stopped moving, the vector sum of the cp-actin filaments around the chloroplast periphery was close to zero, indicating that the direction of movement was undecided. To determine the precise structure of cp-actin filaments under electron microscopy, Arabidopsis leaves and fern <i>Adiantum capillus-veneris</i> gametophytes were frozen using a high-pressure freezer, and observed under electron microscopy. However, no bundled microfilaments were found, suggesting that the cp-actin filaments were unstable even under high-pressure freezing.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":"50 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586563","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":"Leaf form diversity and evolution: a never-ending story in plant biology","authors":"Hokuto Nakayama","doi":"10.1007/s10265-024-01541-4","DOIUrl":"https://doi.org/10.1007/s10265-024-01541-4","url":null,"abstract":"<p>Leaf form can vary at different levels, such as inter/intraspecies, and diverse leaf shapes reflect their remarkable ability to adapt to various environmental conditions. Over the past two decades, considerable progress has been made in unraveling the molecular mechanisms underlying leaf form diversity, particularly the regulatory mechanisms of leaf complexity. However, the mechanisms identified thus far are only part of the entire process, and numerous questions remain unanswered. This review aims to provide an overview of the current understanding of the molecular mechanisms driving leaf form diversity while highlighting the existing gaps in our knowledge. By focusing on the unanswered questions, this review aims to shed light on areas that require further research, ultimately fostering a more comprehensive understanding of leaf form diversity.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":"64 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586507","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":"Fine-scale clonal structure of the lingonberry Vaccinium vitis-idaea under the nurse plant Pinus pumila vegetation in an alpine region, Mt. Norikura","authors":"Kensuke Sugimoto, Rio Kawai, Takahiko Koizumi, Ayumi Matsuo, Yoshihisa Suyama, Inoue Mizuki","doi":"10.1007/s10265-024-01537-0","DOIUrl":"https://doi.org/10.1007/s10265-024-01537-0","url":null,"abstract":"<p>The nurse effect is a positive interaction in which a nurse plant improves the abiotic environment for another species (beneficiary plant) and facilitates its establishment. The evergreen shrub <i>Vaccinium vitis-idaea</i> (a beneficiary plant) grows mainly under the dwarf shrub <i>Pinus pumila</i> (a nurse plant) in the alpine regions of central Japan. However, whether <i>V. vitis-idaea</i> shrubs under various <i>P. pumila</i> shrubs spread through clonal growth and/or seeds remains unclear. We investigated the clonal structure of <i>V. vitis-idaea</i> under the nurse plant <i>P. pumila</i> in Japanese alpine regions. MIG-seq analysis was conducted to clarify the clonal diversity of <i>V. vitis-idaea</i> in isolated and patchy <i>P. pumila</i> plots on a ridge (PATs), and in a plot covered by dense <i>P. pumila</i> on a slope adjacent to the ridge (MAT) on Mt. Norikura, Japan. We detected 28 multilocus genotypes in 319 ramets of <i>V. vitis-idaea</i> across 11 PATs and MAT. Three genets expanded to more than 10 m in the MAT. Some genets were shared among neighboring PATs or among PATs and MAT. These findings suggest that the clonal growth of <i>V. vitis-idaea</i> plays an important role in the sustainability of populations. The clonal diversity of <i>V. vitis-idaea</i> was positively related with the spatial size of PATs and was higher in MAT than in PATs at a small scale. Therefore, the spatial spread of the nurse plant <i>P. pumila</i> might facilitate the nurse effect on the genetic diversity of beneficiary plants, leading to the sustainability of beneficiary populations.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":"55 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140602394","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":"Involvement of GLR-mediated nitric oxide effects on ROS metabolism in Arabidopsis plants under salt stress","authors":"Azime Gokce, Askim Hediye Sekmen Cetinel, Ismail Turkan","doi":"10.1007/s10265-024-01528-1","DOIUrl":"https://doi.org/10.1007/s10265-024-01528-1","url":null,"abstract":"<p>Plant glutamate receptor-like channels (GLRs) play important roles in plant development, immune response, defense signaling and Nitric oxide (NO) production. However, their involvement in abiotic stress responses, particularly in regulating Reactive Oxygen Species (ROS), is not well understood. This study aimed to investigate GLR-mediated NO production on ROS regulation in salt-stressed cells. To achieve this, <i>Arabidopsis thaliana</i> Columbia (Col-0) were treated with NaCl, glutamate antagonists [(DNQX (6,7-dinitroquinoxaline-2,3-dione and AP-5(D-2-amino-5-phosphono pentanoic acid)], and NO scavenger [cPTIO (2-(4-Carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt)]. Salt-stressed plants in combination with DNQX and AP-5 have exhibited higher increase in lipid peroxidation (TBARS), hydrogen peroxide (H₂O₂) and superoxide radical (O⁻²) contents as compared to solely NaCl-treated plants. Furthermore, NO and total glutathione contents, and S-nitrosoglutathione reductase (GSNOR) activity decreased with these treatments. AP-5 and DNQX increased the activities of NADPH oxidase (NOX), catalase (CAT), peroxidase (POX), cell wall peroxidase (CWPOX) in salt-stressed Arabidopsis leaves. However, their activities (except NOX) were significantly inhibited by cPTIO. Conversely, the combination of NaCl and GLR antagonists, NO scavenger decreased the activities of ascorbate peroxidase (APX), superoxide dismutase (SOD), glutathione reductase (GR), dehydroascorbate reductase (DHAR) and monodehydroascorbate reductase (MDHAR) resulting in elevated GSSG levels, a low GSH/GSSG ratio, impaired ROS scavenging, excessive ROS accumulation and cell membrane damage. The findings of this study provide evidence that GLR-mediated NO plays a crucial role in improvement of the tolerance of Arabidopsis plants to salt-induced oxidative stress. It helps to maintain cellular redox homeostasis by reducing ROS accumulation and increasing the activity of SOD, GSNOR, and the ASC-GSH cycle enzymes.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":"19 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140046020","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":"Unreduced spore formation in a spontaneous chimeric pinnule in an artificially produced haploid Anisocampium niponicum (Athyriaceae, Polypodiales).","authors":"Suzue M Kawakami, Shogo Kawakami","doi":"10.1007/s10265-023-01511-2","DOIUrl":"10.1007/s10265-023-01511-2","url":null,"abstract":"<p><p>Haploid sporophytes of Anisocampium niponicum with 2n = 40, were produced artificially by induced apogamy in vitro. They were subsequently transplanted into pots and two of them have been cultivated for the investigation of sporogenesis and/or production of chimera for more than 20 years. Haploid A. niponicum is sterile, but an abnormal chimeric pinnule that developed spontaneously in a single frond produced sporangia with spores. Each sporangium bore approximately 32 spores that were almost uniform in size. Sowing of these spores resulted in 50 gametophytes. Of 20 gametophytes cultured individually, five produced sporophytes apogamously after eight months. Both the gametophytes and subsequent apogamous sporophytes showed a chromosome number of 2n = 40. Our study demonstrates that a haploid sporophyte offspring can be produced from a haploid mother sporophyte via haploid spores. Since asexual reproduction is a prominent evolutionary process in ferns, the reproduction of a haploid A. niponicum sporophyte by unreduced spore formation might help to elucidate how apogamous ferns occur and evolve.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"161-165"},"PeriodicalIF":2.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139403367","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":"Evidence of an active role of resveratrol derivatives in the tolerance of wild grapevines (Vitis vinifera ssp. sylvestris) to salinity.","authors":"Faouzia Hanzouli, Hassène Zemni, Mahmoud Gargouri, Hatem Boubakri, Ahmed Mliki, Simone Vincenzi, Samia Daldoul","doi":"10.1007/s10265-023-01515-y","DOIUrl":"10.1007/s10265-023-01515-y","url":null,"abstract":"<p><p>Resveratrol and its derivatives are the most important phytoalexins with a crucial role in plant defense mechanisms. These compounds can occur either naturally or in response to abiotic stresses. Among them, salinity is one of the major threats to the sustainability and productivity of agro-economically important species, particularly those involved in the vini-viticulture sector. Understating salinity tolerance mechanisms in plants is required for the development of novel engineering tools. This study aimed to investigate the potential role of resveratrol derivatives in salinity tolerance of wild grapevines. Our data revealed that the tolerant Tunisian wild grapevine genotype \"Ouchtata\" exhibited an increased accumulation of resveratrol derivatives (glycosylated and non-glycosylated resveratrol and t-ɛ-viniferin and hydroxylated t-piceatannol) in both stems and roots, along with an increased total antioxidant activity (TAA) compared to the sensitive genotype \"Djebba\" under stress conditions, suggesting an involvement of these stilbenes in redox homeostasis, thereby, protecting cells from salt-induced oxidative damage. Overall, our study revealed, for the first time, an active role for resveratrol derivatives in salt stress tolerance in wild grapevine, highlighting their potential use as metabolic markers in future grapevine breeding programs for a sustainable vini-viticulture in salt-affected regions.</p>","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"265-277"},"PeriodicalIF":2.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040150","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}