Journal of Plant Research最新文献_第9页

Floral morphology and development reveal extreme diversification in some species of Croton (Euphorbiaceae). 花的形态和发育揭示了巴豆（大戟科）一些物种的极端多样化。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 Epub Date: 2024-08-29 DOI: 10.1007/s10265-024-01572-x

Pakkapol Thaowetsuwan, Ricarda Riina, Louis P Ronse De Craene

{"title":"Floral morphology and development reveal extreme diversification in some species of Croton (Euphorbiaceae).","authors":"Pakkapol Thaowetsuwan, Ricarda Riina, Louis P Ronse De Craene","doi":"10.1007/s10265-024-01572-x","DOIUrl":"10.1007/s10265-024-01572-x","url":null,"abstract":"Floral diversity of Croton, the second largest genus in Euphorbiaceae, is currently under-explored. Several clades demonstrate an unusual floral morphology, e.g., lower or higher stamen number, bilateral symmetry and reduced ovary, but have never been investigated in a comparative study with typical Croton. This study examined morphology and ontogeny of flowers in nine Croton species from different clades within the genus with light and scanning microscopy, resin sectioning and micro-computed tomography. In staminate flowers, great variations of stamen number and arrangement are observed. The ancestral androecium likely consisted of two or more whorls with the outermost antepetalous stamen whorl developing centrifugally. Modification by reduction of the antepetalous whorl resulted in an outer alternipetalous stamen whorl in Croton section Moacroton, subgenus Quadrilobi. Several species in the subgenus Geiseleria show an independent reduction of stamen numbers by absence of a centrifugal development with the antepetalous whorl the first whorl to develop. Petal losses are observed in the distantly related C. setiger and C. dioicus. Chaotic stamen arrangement is found in C. celtidifolius (subgenus Adenophylli) as a result of a secondary stamen increase. In pistillate flowers, reduction of carpel numbers happened three times in the subgenus Geiseleria. C. monanthogynus has a bicarpellate ovary, while in C. setiger and C. michauxii the ovary is monocarpellate. Reduction of carpel number is linked with merism change and perianth reduction. The ovary in C. michauxii has basal placentation which is unique among all Croton. Moreover, strong bilateral sepals and nectaries are observed in species from section Julocroton. Therefore, the floral diversity of some species in the genus Croton could be explained by developmental modification of an ancestral form via reduction, rearrangement of stamen whorls, and symmetry shifts.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"721-743"},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142108610","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}

引用次数: 0

Correction: Reproductive biology as a tool to elucidate taxonomic delimitation: How different can two highly specialized subspecies of Parodia haselbergii (Cactaceae) be? 更正：以生殖生物学为工具阐明分类划界：Parodia haselbergii（仙人掌科）的两个高度特化的亚种会有多大差异？

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 DOI: 10.1007/s10265-024-01563-y

Rafael Becker, Renan Pittella, Fernando H Calderon-Quispe, Júlia de Moraes Brandalise, Rosana Farias-Singer, Rodrigo Bustos Singer

引用次数: 0

Terrestrial mosses as a substrate and potential host for cyanobacteria, green algae and diatoms. 陆生苔藓是蓝藻、绿藻和硅藻的基质和潜在宿主。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 Epub Date: 2024-06-27 DOI: 10.1007/s10265-024-01551-2

Ewelina Szczepocka, Paulina Nowicka-Krawczyk, Grzegorz J Wolski

{"title":"Terrestrial mosses as a substrate and potential host for cyanobacteria, green algae and diatoms.","authors":"Ewelina Szczepocka, Paulina Nowicka-Krawczyk, Grzegorz J Wolski","doi":"10.1007/s10265-024-01551-2","DOIUrl":"10.1007/s10265-024-01551-2","url":null,"abstract":"Most studies of terrestrial bryophytes as natural substrates for photosynthetic microorganisms have been performed in the polar regions, where bryophytes are an important part of the ecosystem. As they remain green throughout the year, bryophytes may also be an ideal substrate for epiphytic organisms in temperate regions. The present study investigated the colonization potential and diversity of microalgae on selected plant species in riparian forest and spruce monoculture in a temperate region. It examines whether the presence of algae is related to substrate humidity, the micromorphology of gametophyte or the seasonal availability of substrate. The taxonomic diversity of algae was studied. Cyanobacteria and green algae were cultured on BG-11 agar medium, while diatoms were identified in permanent diatomaceous slides. The alpha- and beta-diversity indices were calculated, and the communities were compared using Bray-Curtis distances and multidimensional correspondence analyses. Our findings indicate that the largest number of alga species were diatoms; however, their presence was only observed in riparian forest and was associated with high humidity. Both aerophilic and freshwater taxa were noted, the latter carried by water from nearby aquatic ecosystem. Green algae were present in both phytocoenoses and humidity appears to have no substantial effect on the degree of colonization; their diversity was low and the group consisted of terrestrial taxa. In two bryophytes growing at the highest humidity, cyanobacteria were only identified in culture. The key factor influencing the degree of microalgae colonization was the humidity of the substrate, which was related to the distance from water.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"847-861"},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11392977/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141457608","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}

引用次数: 0

Regulation of heterochromatin organization in plants. 植物异染色质组织的调控。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 Epub Date: 2024-06-24 DOI: 10.1007/s10265-024-01550-3

Noriko Inada

引用次数: 0

Floral ontogeny reveals potential synapomorphies for Senegalia sect. Monacanthea p.p. (Leguminosae). 花的发生揭示了 Senegalia sect.Monacanthea p.p.（豆科）。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 Epub Date: 2024-07-04 DOI: 10.1007/s10265-024-01554-z

Anderson Javier Alvarado-Reyes, Juliana Villela Paulino, Vanessa Terra, Vidal de Freitas Mansano

{"title":"Floral ontogeny reveals potential synapomorphies for Senegalia sect. Monacanthea p.p. (Leguminosae).","authors":"Anderson Javier Alvarado-Reyes, Juliana Villela Paulino, Vanessa Terra, Vidal de Freitas Mansano","doi":"10.1007/s10265-024-01554-z","DOIUrl":"10.1007/s10265-024-01554-z","url":null,"abstract":"Senegalia was recently described as non-monophyletic; however, its sections exhibit robust monophyletic support, suggesting a potential reclassification into separate genera-Senegalia sect. Monocanthea p.p. is the largest section. It contains 164 species of pantropical distribution and includes all of the current 99 neotropical species of Senegalia; however, no morphological characteristics are available to differentiate this section. To characterize this section, we examined floral developmental traits in four species of Senegalia sect. Monocanthea p.p. These traits were previously considered as potentially distinguishing features within Acacia s.l. and include the onset patterns of the androecium, the timing of calyx union, the origin of the staminal disc, and the presence of stomata on the petals. Furthermore, we analyzed previously unexplored traits, such as corolla union types, inflorescence development, and micromorphological features related to the indumentum, as well as the presence and location of stomata. The characteristics proposed as potential synapomorphies of the group include the postgenital fusion of the corolla and the presence of a staminal disc formed at the base of the filaments. The other analyzed floral characteristics were not informative for the characterization of the group. Future studies of floral ontogeny will help to establish more precise patterns, mainly whether corolla union and staminal tube formation occur similarly in African and Asian sections of Senegalia.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"907-925"},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141498318","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}

引用次数: 0

Mechanical forces in plant growth and development. 植物生长发育中的机械力

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 DOI: 10.1007/s10265-024-01576-7

Akitoshi Iwamoto, Mariko Asaoka

引用次数: 0

Localization of the MTP4 transporter to trans-Golgi network in pollen tubes of Arabidopsis thaliana. 拟南芥花粉管中 MTP4 转运体在跨高尔基体网络中的定位。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 Epub Date: 2024-07-28 DOI: 10.1007/s10265-024-01559-8

Keita Muro, Shoji Segami, Miki Kawachi, Nodoka Horikawa, Ayane Namiki, Komachi Hashiguchi, Masayoshi Maeshima, Junpei Takano

{"title":"Localization of the MTP4 transporter to trans-Golgi network in pollen tubes of Arabidopsis thaliana.","authors":"Keita Muro, Shoji Segami, Miki Kawachi, Nodoka Horikawa, Ayane Namiki, Komachi Hashiguchi, Masayoshi Maeshima, Junpei Takano","doi":"10.1007/s10265-024-01559-8","DOIUrl":"10.1007/s10265-024-01559-8","url":null,"abstract":"Zinc (Zn) is an essential element for plants. Numerous proteins in different cellular compartments require Zn for their structure and function. Zn can be toxic when it accumulates in high levels in the cytoplasm. Therefore, Zn homeostasis at tissue, cell, and organelle levels is vital for plant growth. A part of the metal tolerance protein (MTP) / Cation Diffusion Facilitator (CDF) transporters functions as Zn transporters, exporting Zn from the cytosol to various membrane compartments. In Arabidopsis thaliana, MTP1, MTP2, MTP3, MTP4, MTP5, and MTP12 are classified as Zn transporters (Zn-CDF). In this study, we systematically analyzed the localization of GFP-fused Zn-CDFs in the leaf epidermal cells of Nicotiana benthamiana. As previously reported, MTP1 and MTP3 were localized to tonoplast, MTP2 to endoplasmic reticulum, and MTP5 to Golgi. In addition, we identified the localization of MTP4 to trans-Golgi Network (TGN). Since MTP4 is specifically expressed in pollen, we analyzed the localization of MTP4-GFP in the Arabidopsis pollen tubes and confirmed that it is in the TGN. We also showed the Zn transport capability of MTP4 in yeast cells. We then analyzed the phenotype of an mtp4 T-DNA insertion mutant under both limited and excess Zn conditions. We found that their growth and fertility were not largely different from the wild-type. Our study has paved the way for investigating the possible roles of MTP4 in metallating proteins in the secretory pathway or in exporting excess Zn through exocytosis. In addition, our system of GFP-fused MTPs will help study the mechanisms for targeting transporters to specific membrane compartments.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"939-950"},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141788380","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}

引用次数: 0

What keeps the style under tension? Experimental tests to understand the biomechanics of the explosive style movement in Marantaceae. 是什么保持了花柱的张力？通过实验测试了解马兰头花科植物爆发性花柱运动的生物力学。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 Epub Date: 2024-03-27 DOI: 10.1007/s10265-024-01535-2

Marcus Jerominek, Regine Claßen-Bockhoff

{"title":"What keeps the style under tension? Experimental tests to understand the biomechanics of the explosive style movement in Marantaceae.","authors":"Marcus Jerominek, Regine Claßen-Bockhoff","doi":"10.1007/s10265-024-01535-2","DOIUrl":"10.1007/s10265-024-01535-2","url":null,"abstract":"Pollination in Marantaceae is mediated by an explosive style movement. Before release, style tension is held by the hooded staminode. When a pollinator touches the trigger appendage of the hooded staminode the latter deforms and the style rapidly curls upwards. This movement has been interpreted as a turgor movement by some authors, but recent studies clearly indicate that setup, hold and release of tension are purely mechanical processes. However, in view of the high diversity of hooded staminodes, the question arises what keeps the tension in species with very thin staminodes. To test the holding mechanisms, we conducted mechanical and physico-chemical release experiments in four species with robust and four species with thin hooded staminodes in their natural tropical environment. We found almost the same response of all species to mechanical treatments, but species-specific reactions to different physico-chemical conditions. This indicates that style release follows the same mechanical principles in all species, but that the sensitivity of the explosive movement depends on material properties like tissue thickness and turgescence. As to the holding mechanisms, we found different degrees of floral synorganization. The hood of the hooded staminode formerly interpreted as an important holding structure does not play a noteworthy role. Instead, the basal plate of the hooded staminode antagonises the pressure of the style head against the holding point of the hooded staminode in species with robust hooded staminodes and well-developed basal plates. In some species with a thin hooded staminode, the latter is closely attached to the style and most likely stabilises tension by adhesive forces. In another species, a morphologically analogous structure adopts the function of the basal plate. We conclude that the holding mechanism of the style tension diversified during the evolution of Marantaceae whereas the release mechanism itself has been conserved throughout the family.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"745-762"},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140306018","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}

引用次数: 0

Prolonged exposure to hypergravity increases number and size of cells and enhances lignin deposition in the stem of Arabidopsis thaliana. 长期暴露在超重力环境中会增加拟南芥茎干中细胞的数量和大小，并促进木质素沉积。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 Epub Date: 2024-07-02 DOI: 10.1007/s10265-024-01556-x

Hironori Shinohara, Masaki Muramoto, Daisuke Tamaoki, Hiroyuki Kamachi, Hiroshi Inoue, Atsushi Kume, Ichirou Karahara

{"title":"Prolonged exposure to hypergravity increases number and size of cells and enhances lignin deposition in the stem of Arabidopsis thaliana.","authors":"Hironori Shinohara, Masaki Muramoto, Daisuke Tamaoki, Hiroyuki Kamachi, Hiroshi Inoue, Atsushi Kume, Ichirou Karahara","doi":"10.1007/s10265-024-01556-x","DOIUrl":"10.1007/s10265-024-01556-x","url":null,"abstract":"We have performed a lab-based hypergravity cultivation experiment using a centrifuge equipped with a lighting system and examined long-term effects of hypergravity on the development of the main axis of the Arabidopsis (Arabidopsis thaliana (L.) Heynh.) primary inflorescence, which comprises the rachis and peduncle, collectively referred to as the main stem for simplicity. Plants grown under 1 × g (gravitational acceleration on Earth) conditions for 20-23 days and having the first visible flower bud were exposed to hypergravity at 8 × g for 10 days. We analyzed the effect of prolonged hypergravity conditions on growth, lignin deposition, and tissue anatomy of the main stem. As a result, the length of the main stem decreased and cross-sectional area, dry mass per unit length, cell number, and lignin content of the main stem significantly increased under hypergravity. Lignin content in the rosette leaves also increased when they were exposed to hypergravity during their development. Except for interfascicular fibers, cross-sectional areas of the tissues composing the internode significantly increased under hypergravity in most types of the tissues in the basal part than the apical part of the main stem, indicating that the effect of hypergravity is more pronounced in the basal part than the apical part. The number of cells in the fascicular cambium and xylem significantly increased under hypergravity both in the apical and basal internodes of the main stem, indicating a possibility that hypergravity stimulates procambium activity to produce xylem element more than phloem element. The main stem was suggested to be strengthened through changes in its morphological characteristics as well as lignin deposition under prolonged hypergravity conditions.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"927-937"},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141492391","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}

引用次数: 0

Is urbanization a driver of aboveground biomass allocation in a widespread tropical shrub, Turnera subulata (Turneroideae - Passifloraceae)? 城市化是热带灌木 Turnera subulata（西番莲科）地上生物量分配的驱动因素吗？

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2024-09-01 Epub Date: 2024-07-17 DOI: 10.1007/s10265-024-01560-1

L Seixas, K R Barão, Rvr Lopes, D Serafim, Guilherme Ramos Demetrio

{"title":"Is urbanization a driver of aboveground biomass allocation in a widespread tropical shrub, Turnera subulata (Turneroideae - Passifloraceae)?","authors":"L Seixas, K R Barão, Rvr Lopes, D Serafim, Guilherme Ramos Demetrio","doi":"10.1007/s10265-024-01560-1","DOIUrl":"10.1007/s10265-024-01560-1","url":null,"abstract":"Plant biomass allocation is mainly affected by the environment where each individual grows. In this sense, through the rapid global expansion of impermeable areas, urbanization has strong, albeit poorly understood, consequences on the biomass allocation of plants found in this environment. Nevertheless, the comprehension of biomass allocation processes in urban shrubs remains unclear, because most studies of urban ecology focus on tree species. This is an important gap of knowledge because a great part of urban vegetation is composed of shrubs and their association with trees have positive impacts in urban ecosystem services. In this study, we explored the ecological and potential selective pressure effects of an urbanization gradient on the biomass allocation patterns of aboveground organs of Turnera subulata, a widely distributed tropical shrub. We have demonstrated that, for certain reproductive organs, biomass allocation decreases in locations with higher urbanization. Unlike expected, the biomass of vegetative organs was not affected by urbanization, and we did not observe any effect of urbanization intensity on the variance in biomass allocation to vegetative and reproductive organs. We did not record urbanization-mediated trade-offs in biomass allocation for reproductive and vegetative organs. Instead, the biomass of these structures showed a positive relationship. Our data suggest that urbanization does not result in radical changes in biomass allocation of T. subulata, and neither in the variation of these traits. They indicate that the ability of T. subulata to thrive in urban environments may be associated with life history and morphological mechanisms. Our findings contribute to the understanding of shrub plant responses to urbanization and highlight urbanization as a potential factor in resource allocation differences for different structures and functions in plants living in these environments.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"879-892"},"PeriodicalIF":2.7,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141626954","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}

引用次数: 0