Aquatic Botany最新文献

{"title":"Nontargeted lipidomics of Florida seagrasses","authors":"Emily K. Griffin ,&nbsp;Kaylie Anne Costa ,&nbsp;Dylan Lukacsa ,&nbsp;Justin Greenberg ,&nbsp;Lauren M. Hall ,&nbsp;Bradley T. Furman ,&nbsp;Victoria M. Congdon ,&nbsp;Trisha Green ,&nbsp;Katherine Suchanec ,&nbsp;John A. Bowden","doi":"10.1016/j.aquabot.2024.103773","DOIUrl":"10.1016/j.aquabot.2024.103773","url":null,"abstract":"<div><p>Seagrasses are one of the most productive foundation species in the world and are important for maintaining ecosystem homeostasis. However, seagrasses have experienced a global decline in areal extent, due in part to environmental stressors. Despite ongoing decline, little is known about the lipidome of most seagrass species. Generally, lipidome profiles closely align with phenotypic changes and can be used to evaluate the condition of an individual. In this study, a nontargeted lipidomics approach, utilizing high-performance liquid chromatography tandem mass spectrometry, was used to assess the lipidome of wild seagrasses in Florida. Overall, 399 individual lipid species, comprised of 33 lipid subclasses, were identified across all specimens. The lipid classes with the highest total concentration, accounting for 75% of total identified lipids in all seagrasses were: monogalactosyldiacylglycerols (MGDG), digalactosyldiacylglycerols (DGDG), and sulfoquinovosyl diacylglycerols (SQDG). Here, the lipidomic profiles of wild seagrasses were identified for the first time, a necessary step toward using lipodomics as a tool for prospective assessments of condition. Once regional and species-specific baselines have been mapped, lipodomic surveys could provide new insight into the effects of environmental stressors on seagrass condition and help to augment ongoing efforts to document and understand seagrass ecosystem status and trends.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"193 ","pages":"Article 103773"},"PeriodicalIF":1.8,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140181896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of three species of aquatic mosses in axenic culture for biomonitoring and biotechnological applications","authors":"Chiara Anglana,&nbsp;Fabrizio Barozzi,&nbsp;Piergiorgio Capaci,&nbsp;Danilo Migoni,&nbsp;Makarena Rojas,&nbsp;Francesco Paolo Fanizzi,&nbsp;Gian-Pietro Di Sansebastiano","doi":"10.1016/j.aquabot.2024.103762","DOIUrl":"10.1016/j.aquabot.2024.103762","url":null,"abstract":"<div><p>Bryophytes are known bioindicators and are also emerging as effective tools for bioremediation. <em>In vitro</em> culture of bryophytes is an important tool for the implementation of several research and industrial applications but it is a poorly explored technology. In this study, we characterize in sterile conditions three aquatic moss species largely used all over the world for decoration but poorly studied: <em>Leptodictyum riparium</em>, <em>Vesicularia montagnei</em> and <em>Taxiphyllum barbieri</em>. They share interesting morphological traits that suggest their use as natural biofilters. Results include protocols for the establishment of axenic <em>in vitro</em> cultures, different for the different species because of their sensitivity to treatments, on which the morphological characters of the three species were described. The sporophytic generation was observed in <em>L. riparium</em> and <em>V. montagnei</em> but not in <em>T. barbieri</em> that may be unable to develop the diploid generation. The effect of plant growth regulators on gametophyte fragments was described applying 6-benzylaminopurine as cytokinin and α-naphthalene acetic acid as auxin. The absorption of several trace elements was measured in a mixed solution simulating environmental pollution, evidencing specie specificity toward the different elements. The possible applications for these mosses are not only in the field of bioindication but also in bioremediation and environmental restoration. Our study produced widely applicable protocols and basic information for further applications.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"193 ","pages":"Article 103762"},"PeriodicalIF":1.8,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0304377024000147/pdfft?md5=c75d2a5e2fea6a25fbfc644dd0d33891&pid=1-s2.0-S0304377024000147-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140011312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High floral trait diversity of aquatic plants in the Pantanal reveals different pollination strategies","authors":"Raissa Tais Santos ,&nbsp;Sara Sofia Medina Benavides ,&nbsp;Daniel Maximo Correa Alcantara ,&nbsp;Suzana Neves Moreira ,&nbsp;Vali J. Pott ,&nbsp;Arnildo Pott ,&nbsp;Camila Aoki ,&nbsp;Camila Silveira Souza","doi":"10.1016/j.aquabot.2024.103761","DOIUrl":"10.1016/j.aquabot.2024.103761","url":null,"abstract":"<div><p>This research brings novel information regarding the floral traits and pollinator groups of aquatic macrophytes. Classifying functional traits and pollinator groups contributes to understanding reproductive processes, community structuring, and ecosystem functioning. Based on an extensive survey of information on 524 species of aquatic macrophyte angiosperms from the Pantanal wetland, we classified the floral traits of these species to identify their potential group of pollinators and how these traits are distributed throughout the botanical families of aquatic plants. We classified their life forms, floral traits (flower type, color, and resource), and main pollinator groups. We also investigated trends, plotting the occurrence of species throughout the phylogeny of angiosperm families, and using a network of interactions, we verified how interactions with different groups of pollinators are distributed within species traits. As a result, the species of aquatic macrophytes in the Pantanal are well distributed within the phylogeny, indicating that they may be more related to ecological than phylogenetic factors. We found a high diversity of floral traits and pollinator groups, predominating white flowers, providing nectar as a resource, and bees as their primary pollinators. Although bees were the main group of pollinators, we also found abiotic interactions linked to the species richness in Poaceae and Cyperaceae, with pollination system mainly performed by wind. Our research represents a first step towards identifying key information gaps. Future studies should focus on understanding <em>in loco</em> traits to fill this gap, besides information on ecological interactions with potential pollinators and species phenology.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"193 ","pages":"Article 103761"},"PeriodicalIF":1.8,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139949792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plasma membrane aquaporins function in moisture regulation during seed germination and leaf hydration in eelgrass","authors":"Ken-ichi Yanada,&nbsp;Kaho Kondo,&nbsp;Natsumi Ino,&nbsp;Yukiko Bando,&nbsp;Keita Kurokawa,&nbsp;Ichiro Tanaka,&nbsp;Hajime Shiota","doi":"10.1016/j.aquabot.2024.103760","DOIUrl":"10.1016/j.aquabot.2024.103760","url":null,"abstract":"<div><p>Eelgrass (<em>Zostera marina</em>) is a marine angiosperm distributed in shallow seas that has a unique mechanism for regulating water content. Water transfer across the plasma membrane is facilitated by aquaporins, which are membrane proteins. In this study, we investigated the physiological functions of plasma membrane intrinsic proteins (PIPs) in eelgrass. <em>ZoPIP1;1</em> and <em>ZoPIP2;1</em> in eelgrass leaves were amplified by RT-PCR. Both ZoPIPs localized to the plasma membrane, and only ZoPIP2;1 showed water permeability. <em>ZoPIP1;1</em> and <em>ZoPIP2;1</em> were expressed in all tissues except male flowers. <em>ZoPIP</em>s were expressed during seed and fruit development, and their expression levels were low in mature seeds and elevated in germinating seeds. Moisture content decreased in the later phases of seed development and increased during seed germination. These findings imply that ZoPIPs participate in water uptake during seed germination. In leaves, <em>ZoPIP</em> expression was upregulated by dehydration but downregulated by rehydration. Water reabsorption of leaves was inhibited by HgCl₂, an inhibitor of aquaporins. These findings indicate that ZoPIPs are upregulated by dehydration during extremely low tides and promote water uptake when the tide turns. Therefore, eelgrass PIPs function in moisture regulation during growth, seed germination, and the flood-ebb tidal cycle in seawater.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103760"},"PeriodicalIF":1.8,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139924264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Allelopathic interactions between Lemna minor and Microcystis aeruginosa are influenced by the antimalarial drug lumefantrine","authors":"Suleiman Dauda ,&nbsp;Ejiroghene Ebelechukwu Uyovbisere ,&nbsp;Abdullahi Bala Alhassan ,&nbsp;Ramatu Idris Sha’aba ,&nbsp;Ibrahim Madu Katsallah Gadzama ,&nbsp;Maria Onma Onaji ,&nbsp;Mathias Ahii Chia","doi":"10.1016/j.aquabot.2024.103759","DOIUrl":"10.1016/j.aquabot.2024.103759","url":null,"abstract":"<div><p>The aquatic macrophyte <span><em>Lemna minor</em></span><span> and cyanobacterium </span><span><em>Microcystis aeruginosa</em></span><span> coexist and alternate in freshwater ecosystems<span>, and nutrient changes, physical conditions, and micropollutants such as pharmaceuticals drive their succession. However, the effects of the antimalarial drug Lumefantrine on allelopathic interactions have not been previously investigated. This study investigated the effect of Lumefantrine on the allelopathic interactions between </span></span><em>L. minor</em> and <em>M. aeruginosa</em>. The drug adversely affected pigment levels at 1000 µg L^-1 on day one, while the highest levels were observed at the same concentration on days three and five in <em>M. aeruginosa</em> cultures. The intracellular hydrogen peroxide (H₂O₂<span><span>) and lipid peroxidation (MDA) levels and </span>peroxidase<span> (POD) and glutathione S-transferase (GST) activity of </span></span><em>L. minor</em> and <em>M. aeruginosa</em><span> increased at varying degrees depending on the concentration of Lumefantrine. Increased concentrations of Lumefantrine induced higher microcystin content in </span><em>M. aeruginosa</em>. <em>L. minor</em> significantly decreased the growth and increased GST and POD activities of <em>M. aeruginosa</em> on day five of the assay. The introduction of Lumefantrine further altered these parameters when the species were co-cultured. Similarly, <em>M. aeruginosa</em> inhibited the growth of <em>L. minor</em>. The combination of <em>M. aeruginosa</em> and Lumefantrine increased GST activity compared with <em>M. aeruginosa</em> alone. Microcystin content was higher in co-cultures without Lumefantrine than in those exposed to the drug. These results show that allelopathic interactions between <em>L. minor</em> and <em>M. aeruginosa</em> are influenced by Lumefantrine and may have implications for managing freshwater ecosystems.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103759"},"PeriodicalIF":1.8,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139590045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mercury concentrations in macrophytes, periphyton, and detritus in the Everglades, Florida, USA, with special attention to Utricularia species","authors":"Mike Jerauld ,&nbsp;Jessica Vaccare ,&nbsp;Forrest Dierberg ,&nbsp;Nichole L. Carr ,&nbsp;Janelle Potts ,&nbsp;Thomas DeBusk","doi":"10.1016/j.aquabot.2024.103758","DOIUrl":"10.1016/j.aquabot.2024.103758","url":null,"abstract":"<div><p>Elevated mercury (Hg) levels in biota is one issue facing the Everglades ecosystem in south Florida, USA. Methylmercury (MeHg) is a concern in the environment because it bioaccumulates through the food web and can harm fauna and humans if ingested through contaminated food sources (e.g., fish). Total mercury (THg) and MeHg concentrations were measured in several common macrophyte species, periphyton, and detritus in the Everglades to investigate Hg concentrations spatially and among different ecosystem components. At each site, two species from the carnivorous genus <span><em>Utricularia</em></span>, <em>U. purpurea</em> and <em>U. foliosa</em>, which are widespread and abundant in Everglades sloughs, had much higher average tissue MeHg concentrations (2.4–81 ng/g dry weight [dw]) than all other sampled macrophytes (&lt;1.5–7.5 ng/g dw), periphyton (0.4–6.2 ng/g dw), and detritus (&lt;1.5–5.7 ng/g dw). The <em>Utricularia</em> species were likewise enriched with THg (14.6–115 ng/g dw) compared to the other macrophytes (2.6–27 ng/g dw), although slough detritus had the highest THg at most sites (24–182 ng/g dw). The <em>Utricularia</em> species generally had a higher average percent of THg as MeHg (8.2–75%) compared to the other macrophytes, periphyton, and detritus (0–32%). MeHg concentrations in <em>Utricularia</em> species were quite variable among sites with a spatial distribution that generally reflected historical Hg concentration patterns known in mosquitofish (<span><em>Gambusia holbrooki</em></span>). <em>Utricularia</em> species merit further investigation to understand how they accumulate relatively high MeHg concentrations and how they might influence Hg accumulation up the food web.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103758"},"PeriodicalIF":1.8,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139557843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling germination responses of three Mediterranean stem-succulent halophytes to salinity and temperature","authors":"Zaineb Hayder ,&nbsp;Mansour Sekrafi ,&nbsp;Abderrazak Tlili ,&nbsp;Fayçal Boughalleb ,&nbsp;Esmaeil Bakhshandeh ,&nbsp;Raoudha Abdellaoui ,&nbsp;Mohamed Tarhouni","doi":"10.1016/j.aquabot.2024.103757","DOIUrl":"10.1016/j.aquabot.2024.103757","url":null,"abstract":"<div><p><span>Population-based threshold models may aid in quantification of germination niches under stressful conditions such as salinity, temperature, and their interactions to understand seedling emergence patterns. Seeds of </span><span><em>Sarcocornia</em><em> fruticosa</em></span>, <em>Sarcocornia alpini</em>, and <span><em>Salicornia</em><em> emerici</em></span> were subjected to various temperatures at different NaCl concentrations. The median base NaCl concentration was roughly steady (0.68, 0.73, and 0.70 M, respectively) at sub-optimal temperatures, then decreased linearly at supra-optimal temperatures until the ceiling temperature. The estimated base, optimum and ceiling temperatures, in water, were –0.5, 15, and 29 °C for <span><em>Sarcocornia fruticosa</em></span>, –2.5, 11, and 24 °C for <em>Sarcocornia alpini</em>, and 9.5, 25, and 40 °C for <em>Salicornia emerici</em>, respectively. For all species, the base temperature did not change with the salinity, while both optimal and ceiling temperatures decreased. <em>S. emerici</em> showed rapid and synchronized germination when salinity decreased during the rainy season coinciding with favorable temperatures.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103757"},"PeriodicalIF":1.8,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139506907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High water levels and low light co-inhibit colonization of fragments from the clonal invader Alternanthera philoxeroides","authors":"Haijie Zhang ,&nbsp;Bei Huang ,&nbsp;Yangting Huang ,&nbsp;Jian Liu","doi":"10.1016/j.aquabot.2024.103749","DOIUrl":"10.1016/j.aquabot.2024.103749","url":null,"abstract":"<div><p>Natural disturbances and human activities frequently fragment aquatic plants. Vegetative fragments of invasive clonal plants have a high capacity for colonization and regrowth, which results in rapid spreading of these plants. A case study was conducted to explore the effects of the water level and light on the colonization and regrowth of a clonal invasive plant – <em>Alternanthera philoxeroides</em>. In the study, the growth of 10-cm-long fragments of <em>A. philoxeroides</em> was followed in three water levels (0, 2, and 10 cm) and two light conditions (10% and 80% of natural light). Results showed that total biomass of <em>A. philoxeroides</em> under all treatments except 10% of natural light and 10 cm of water level was higher than the initial biomass, which suggested that fragments of <em>A. philoxeroides</em> can regrow under most conditions. However, treatments of high water levels and low light inhibited regrowth, clonal expansion, and vegetative propagation of clonal fragments by reducing their total biomass, number of nodes and storage root biomass. Creating habitats of high water levels and low light, for example, by planting native emergent aquatic plants, can hamper the spread of this clonal invader. Our study contributes a new perspective to controlling the spread of invasive clonal plants by creating habitats that inhibit the colonization of invasive plant propagules.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103749"},"PeriodicalIF":1.8,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0304377024000019/pdfft?md5=d8c91f7074c9e9972678d91e5c80a4f8&pid=1-s2.0-S0304377024000019-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139410639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of salinity stress on growth, chlorophyll, antioxidant enzymes and nutrient content in Azolla spp.","authors":"Hari Narayan ,&nbsp;Upendra Kumar ,&nbsp;Tapas Chowdhury ,&nbsp;P. Swain ,&nbsp;Madhusmita Barik ,&nbsp;AK Nayak","doi":"10.1016/j.aquabot.2024.103750","DOIUrl":"10.1016/j.aquabot.2024.103750","url":null,"abstract":"<div><p><span><em>Azolla</em></span><span> is an aquatic fern<span> that has a symbiotic association with nitrogen-fixing cyanobacteria. It is mainly used as a biofertilizer in rice; however, its potential under salt-affected rice cultivated area was compromised. Therefore, the present study was undertaken to understand the effect of salinity stress on morpho-physiological, biochemical characteristics, photosynthetic efficacy, nutrient and High Affinity Potassium Transporter (</span></span><em>HKT)</em> genes in <em>Azolla</em>. The results indicated that out of 102, 8 <em>Azolla</em> (<em>A. microphylla</em>, BLCC 5, BLCC 18, BLCC 28, Pa Car WTY, R 18, R 54 and R 59) were found tolerant to 80 mM NaCl. The best species for salt tolerant (80 mM NaCl) was <em>A. microphylla</em>, whereas the least-tolerant was <em>A. rubra.</em><span> Fresh biomass production<span>, frond length and width in </span></span><em>A. microphylla</em> were significantly (<em>p</em> &lt; 0.05) higher in <em>A. microphylla</em> than <em>A. rubra</em><span><span> in both 40 and 80 mM NaCl. Moreover, chlorophyll a/b ratio, carotenoids and </span>chlorophyll fluorescence (CHF)-derived F</span>_O, F_m, F_v/F_m and root architecture (root length, average root diameter, root volume, projectile and surface area) were higher in <em>A. microphylla</em> than <em>A. rubra</em> under 40 and 80 mM NaCl. Contents of Na⁺ and Ca²⁺ increased in both <em>A. microphylla</em> and <em>A. rubra</em>, which can interfere with the uptake of essential macronutrients; however, these were accumulated comparatively less in <em>A. microphylla</em> than <em>A. rubra</em>, whereas a reverse trend was observed in cellular accumulation of K⁺ content. <em>A. microphylla</em><span> had higher superoxide dismutase<span> (SOD), ascorbate peroxidase<span> (APX), and proline activities in 40 and 80 mM NaCl than </span></span></span><em>A. rubra</em><span>. For the first time, twenty six HKT primers were designed as a molecular marker to identify salt-tolerant </span><em>Azolla.</em> Out of these, three HKT primers (Req 6, Aeq14, and Aeq16) were amplified in <em>A. microphylla</em> under NaCl stress, while their amplifications were not observed in <em>A. rubra</em> (salt susceptible). In <em>A. microphylla</em>, the expression of the Req 6 (<em>HKT</em>) gene were more under NaCl stress. Moreover, further research is needed to discover and validate the biochemical and molecular processes that confer salinity tolerance in <em>Azolla</em> plants.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103750"},"PeriodicalIF":1.8,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139104799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bruguiera gymnorhiza forms mycorrhizal associations but Rhizophora stylosa does not: A pot experiment using mangrove soil and Rhizophoraceae seedlings","authors":"Yasuaki Akaji ,&nbsp;Tomomi Inoue ,&nbsp;Ayato Kohzu ,&nbsp;Takeshi Taniguchi ,&nbsp;Shigeyuki Baba","doi":"10.1016/j.aquabot.2023.103748","DOIUrl":"10.1016/j.aquabot.2023.103748","url":null,"abstract":"<div><p>Arbuscular mycorrhizal (AM) fungi often colonize the roots of mangrove plants, forming symbiotic associations with them, but colonization rates differ greatly among mangrove species. To examine differences in the colonization patterns of AM fungi, we focused on two species of mangroves (<span><em>Rhizophora stylosa</em></span> and <span><em>Bruguiera gymnorhiza</em></span><span>; Rhizophoraceae) and conducted a pot experiment using seedlings grown in mangrove soil watered with fresh water or brackish water (200 mM NaCl). We observed AM fungal structures such as hyphae, arbuscles, and vesicles in the roots of all </span><em>B. gymnorhiza</em><span> seedlings in the freshwater treatment, but rarely in the brackish water treatment. By contrast, we found no AM fungal structures in roots of any </span><em>R. stylosa</em> seedlings in either the freshwater or brackish water treatment. These results imply that <em>B. gymnorhiza</em> are facultatively mycorrhizal plants that have maintained the ability to form associations with AM fungi, whereas <em>R. stylosa</em>, which dominate habitats more seaward than those of <em>B. gymnorhiza</em>, may have lost the ability to form mycorrhizal associations through adaptation to extreme seaside conditions.</p></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"192 ","pages":"Article 103748"},"PeriodicalIF":1.8,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139067722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}