Aquatic Botany最新文献_第2页

Increased flooding depth and duration limit post-submergence recovery of Bolboschoenus planiculmis 增加的洪水深度和持续时间限制了平尺蠖在淹没后的恢复

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2025-12-05 DOI: 10.1016/j.aquabot.2025.103982

Meiying Wang, Ming Jiang, Yuanchun Zou, Wenguang Zhang, Yu An, Bo Liu

{"title":"Increased flooding depth and duration limit post-submergence recovery of Bolboschoenus planiculmis","authors":"Meiying Wang, Ming Jiang, Yuanchun Zou, Wenguang Zhang, Yu An, Bo Liu","doi":"10.1016/j.aquabot.2025.103982","DOIUrl":"10.1016/j.aquabot.2025.103982","url":null,"abstract":"<div><div>Flooding regimes critically regulate the growth, distribution, and composition of wetland plants, with depth and duration being key determinants. <em>Bolboschoenus planiculmis</em>, a perennial sedge species, serves as the primary tuber food source for <em>Leucogeranus leucogeranus</em> in the Momoge National Nature Reserve (MNNR) in northeastern China. This study aimed to investigate the effects of flooding depth and duration on this species, as well as its recovery performance following flood recession. A controlled pot experiment simulated 20-, 40-, and 60-day submergence periods under water depths of 0, 10, 30, and 50 cm, followed by 20 days of de-submergence. The results showed that increased flooding depths (30–50 cm) had detrimental effects on the performance of <em>B. planiculmis</em>. As flooding duration increased, the suppression of biomass accumulation became progressively more severe at deeper water depths (30 and 50 cm) compared to shallower ones (0 and 10 cm). All response variables after recovery were significantly affected by flooding depth, duration, and their interactions. Post-recovery biomass showed no significant differences between the 0 and 10 cm treatments across all durations. However, deeper flooding (30–50 cm) combined with prolonged submergence (40–60 days) severely impaired growth recovery. These findings highlight the vulnerability of <em>B. planiculmis</em> to prolonged deep flooding and underscore the importance of maintaining shallow water depths (≤10 cm) during the sprouting period to preserve its population. Such hydrological management is critical for sustaining Siberian crane foraging habitats.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103982"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145747821","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}

引用次数: 0

Predicted changes in potential distribution of seagrass beds in the Persian Gulf driven by climate change 预测气候变化对波斯湾海草床潜在分布的影响

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2025-12-30 DOI: 10.1016/j.aquabot.2025.103988

Iraj Baloch , Mehran Loghmani , Amir Ghazilou

引用次数: 0

Sarmentypnum trichophyllum (Warnst.) Hedenäs, a rare boreal-arctic aquatic moss, first recorded in the glacial sediments of Central Europe 三叶藻（疣）Hedenäs，一种罕见的北方-北极水生苔藓，首次记录在中欧的冰川沉积物中

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2026-01-17 DOI: 10.1016/j.aquabot.2026.103997

Petra Hájková , Jolanta Pilch , Włodzimierz Margielewski , Renata Stachowicz-Rybka , Krzysztof Buczek

{"title":"Sarmentypnum trichophyllum (Warnst.) Hedenäs, a rare boreal-arctic aquatic moss, first recorded in the glacial sediments of Central Europe","authors":"Petra Hájková , Jolanta Pilch , Włodzimierz Margielewski , Renata Stachowicz-Rybka , Krzysztof Buczek","doi":"10.1016/j.aquabot.2026.103997","DOIUrl":"10.1016/j.aquabot.2026.103997","url":null,"abstract":"<div><div>The aquatic moss <em>Sarmentypnum trichophyllum</em> (Warnst.) Hedenäs<em>,</em> nowadays occurring most frequently in the northern parts of Eurasia and North America, with only disjunct occurrences in the high altitudes of the more southern areas, has been discovered in the late glacial minerogenic sediments of the present-day Kotoń landslide fen (Beskid Makowski Mountains, the Outer Western Carpathians, S Poland, 739 m a.s.l.). As inferred from the sediment type (organic silt) and the presence of accompanying macrofossils of vascular plants, <em>Sarmentypnum trichophyllum</em> grew in the clear-water oligo- to mesotrophic waterbody surrounded by arctic steppe-tundra. These conditions probably reflected the cold and dry climate of the short GI-1d/Older Dryas climatic cooling 14,070 ± 72 to ca. 13,900 ± 56 cal BP (ca. 170 years). The glacial occurrence of this species in lower latitudes suggests the relict character of today´s populations with disjunct southern occurrences. It seems that <em>S. trichophyllum</em> might be more distributed in Central Europe during the late glacial period.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103997"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034332","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}

引用次数: 0

Nutritional composition of forage resources consumed by Florida manatees (Trichechus manatus latirostris) vulnerable to seagrass decline in the Indian River Lagoon 印度河环礁湖海草退化对佛罗里达海牛所消耗的饲料资源营养组成的影响

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2025-11-26 DOI: 10.1016/j.aquabot.2025.103972

Aarin Conrad Allen , Danielle C. Sattelberger , Justin E. Campbell , Jeremy J. Kiszka

{"title":"Nutritional composition of forage resources consumed by Florida manatees (Trichechus manatus latirostris) vulnerable to seagrass decline in the Indian River Lagoon","authors":"Aarin Conrad Allen , Danielle C. Sattelberger , Justin E. Campbell , Jeremy J. Kiszka","doi":"10.1016/j.aquabot.2025.103972","DOIUrl":"10.1016/j.aquabot.2025.103972","url":null,"abstract":"<div><div>The Florida manatee (<em>Trichechus manatus latirostris</em>) is known to consume at least sixty species of aquatic macrophytes, but seagrass dominates their diet. In recent years, however, harmful algal blooms (HABs) have caused major seagrass declines, particularly in the Indian River Lagoon (IRL), Florida. Recent studies suggest that manatees in the IRL have undergone a significant dietary shift from a seagrass- to a macroalgae-dominated diet over the past ∼50 years. Therefore, there is a need to understand the nutritional and energetic consequences of such a dietary shift. This study compared the macronutrients carbon (C), nitrogen (N), and phosphorus (P), and proximate composition (acid detergent fiber [ADF], ash, crude fat, crude protein, total digestible nutrients [TDN], and total nonstructural carbohydrates [TNC]) of ten known forage items consumed by manatees in the IRL. Here, we aimed to: 1) quantify macronutrient and elemental stoichiometry (C:N:P) of items consumed by manatees, 2) evaluate the proximate composition of forage resources, and 3) investigate the seasonal (wet vs. dry) variation in macronutrient and proximate compositions. Results indicate that a macroalgae-rich diet provides readily digestible energy but contains significantly less fiber, and exhibits altered nutritional balances compared to seagrass. Such a dietary transition may compromise hindgut fermentation efficiency, disrupt symbiotic microbiota, and exacerbate malnutrition risks to manatees in Florida.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103972"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797576","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}

引用次数: 0

Seasonal biochemical characterization of the red seaweed Kappaphycus alvarezii cultivated in southern Brazil 巴西南部种植的红藻Kappaphycus alvarezii的季节生化特性

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2026-01-05 DOI: 10.1016/j.aquabot.2026.103990

Alex Ricardo Schneider , Felipe de Souza Dutra , Aline Nunes , Alex Alves dos Santos , Eva Regina Oliveira , Gadiel Zilto Azevedo , Susane Lopes , Giuseppina Pace Pereira Lima , Sidnei Moura , Marcelo Maraschin

{"title":"Seasonal biochemical characterization of the red seaweed Kappaphycus alvarezii cultivated in southern Brazil","authors":"Alex Ricardo Schneider , Felipe de Souza Dutra , Aline Nunes , Alex Alves dos Santos , Eva Regina Oliveira , Gadiel Zilto Azevedo , Susane Lopes , Giuseppina Pace Pereira Lima , Sidnei Moura , Marcelo Maraschin","doi":"10.1016/j.aquabot.2026.103990","DOIUrl":"10.1016/j.aquabot.2026.103990","url":null,"abstract":"<div><div>This study presents the first seasonal biochemical characterization of the red seaweed <em>Kappaphycus alvarezii</em> cultivated in southern Brazil (Santa Catarina state - SC). Algal biomass was sampled in triplicate from two distinct farm sites (RIB and PAL) at the beginning and end of each season over one year. We analyzed total carbohydrates (TC), soluble sugars (TSS), starch (TS), secondary metabolites carotenoids (TCN), phenolics (TPC), flavonoids (TFC), total lipids (TL), and fatty acid (FA) profiles. Results were subjected to a two-way ANOVA, followed by the Scott-Knott test and principal component analysis (PCA), revealing significant effects (p < 0.05) of site, season, and their interaction. TSS was markedly higher in spring (38.9 mg/g) than autumn (11.3 mg/g), while TL peaked in autumn (up to 5.1 %). Secondary metabolites showed strong seasonal trends; TPC was higher in spring (113.7 mg/100 g) and summer (100.6 mg/100 g), and TCN was highest in summer (816.2 mg/100 g). In contrast, TC (427.9–566.0 mg/g) and TFC (7.7–10.6 mg/100 g) showed no significant seasonal variation, as well as FA, dominated by heptadecanoic (C17:0 – 29.8 %) and linolelaidic (C18:2n6t – 13.6 %) acids. PCA confirmed a clear separation of metabolic profiles by site and season, associating spring/summer samples from one location with high TPC and TSS, and from the other with high TS and TCN. These findings establish a crucial baseline and support the development of seasonal harvest windows to optimize the emerging seaweed cultivation sites in southern Brazil.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103990"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938588","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}

引用次数: 0

Molecular phylogenetic reassessment of Anotrichium (Ceramiales, Rhodophyta) from Korea, with two new species A. flammeum and A. dokdoensis 韩国红毛菌（陶瓷目，红毛门）分子系统发育的再评价（附A. flammeum和A. dokdoensis两新种）

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2026-01-07 DOI: 10.1016/j.aquabot.2026.103989

Mi Yeon Yang , Prismabella Wilis Andiska , Myung Sook Kim

{"title":"Molecular phylogenetic reassessment of Anotrichium (Ceramiales, Rhodophyta) from Korea, with two new species A. flammeum and A. dokdoensis","authors":"Mi Yeon Yang , Prismabella Wilis Andiska , Myung Sook Kim","doi":"10.1016/j.aquabot.2026.103989","DOIUrl":"10.1016/j.aquabot.2026.103989","url":null,"abstract":"<div><div><em>Anotrichium tenue</em>, a red algal species historically reported from diverse coastal regions, has long been exemplified the challenges of taxonomy due to its subtle morphological variation and unclear species boundaries. In this study, we conducted an integrative reassessment of Korean specimens previously attributed to <em>A. tenue</em>, using detailed morphological analyses and molecular phylogenetics based on plastid-encoded <em>rbc</em>L and <em>psb</em>A sequences. Our results revealed two genetically distinct and morphologically diagnosable lineages, described herein as <em>Anotrichium flammeum</em> sp. nov. and <em>Anotrichium dokdoensis</em> sp. nov. To describe the diagnostic characteristics of the two new species, <em>A. flammeum</em> sp. nov. is characterized by secund to irregular branching and up to 12 tetrasporangia per node, while <em>A. dokdoensis</em> sp. nov. exhibits profuse trichoblasts and up to 40 tetrasporangia arranged terminally to subterminally. Both species are clearly distinct from the topotype of <em>A. tenue</em> collected from the Mediterranean region, both molecularly and morphologically. Additionally, our analyses indicate that several specimens previously identified as <em>A. furcellatum</em> are conspecific with <em>A. yagii</em>, highlighting a long-standing case of misidentification. These findings underscore the hidden diversity within <em>Anotrichium</em> and emphasize the importance of integrating molecular and morphological data in resolving species boundaries in red algae.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103989"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973036","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}

引用次数: 0

Posidonia bonsai: Dwarf morphotypes of Posidonia oceanica in CO2 vents and non-vents areas suggest a novel growth strategy Posidonia盆景：在CO2喷口和非喷口地区的Posidonia oceanica的矮化形态表明了一种新的生长策略

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2025-11-26 DOI: 10.1016/j.aquabot.2025.103981

Maria Cristina Gambi , Caterina Iacono , Antonino Miccio , Valentina Esposito , Gabriele Procaccini , Lazaro Marín-Guirao

{"title":"Posidonia bonsai: Dwarf morphotypes of Posidonia oceanica in CO2 vents and non-vents areas suggest a novel growth strategy","authors":"Maria Cristina Gambi , Caterina Iacono , Antonino Miccio , Valentina Esposito , Gabriele Procaccini , Lazaro Marín-Guirao","doi":"10.1016/j.aquabot.2025.103981","DOIUrl":"10.1016/j.aquabot.2025.103981","url":null,"abstract":"<div><div>Dwarf shoots of the Mediterranean seagrass <em>Posidonia oceanica</em>, referred to as “Posidonia bonsai”, described in shallow hydrothermal vents, showed markedly reduced size and altered phenology, that were attributed to the extreme environmental conditions associated with ocean acidification and H<sub>2</sub>S emissions of these vent systems. Here we report new records of Posidonia “bonsai” from CO<sub>2</sub> vent off the Ischia Island and non-vent areas with normal pH conditions at Ischia, and Ustica islands and at Palinuro. At Ustica and Palinuro, bonsai shoots we found exclusively on rocky bottoms, while at Ischia they occurred on the dead <em>P. oceanica</em> matte, both within vent systems and in control areas. Bonsai shoots exhibited a reduced number of leaves, significantly shorter leaf length and width, resulting in a drastic reduction of total leaf surface area (84–95 % lower) and biomass (82–97 % lower) compared to nearby regular-sized shoots. In addition, bonsai shoots lacked the typical annual cycle of leaf sheath thickness observed in normal shoots (lepidochronological cycle), as previously observed in bonsai from other sites. The high number of sheaths recorded per rhizome length, suggests high leaf production and turnover. The occurrence of bonsai shoots on dead matte at the meadow margins and in small clearings, or behind regular terminal shoots on creeping rhizomes in hard bottoms, leads to hypothesize that <em>Posidonia</em> bonsai represents a novel growth and colonization strategy, probably trigged by stressful conditions, not limited to ocean acidification, and point out the remarkable phenotypic plasticity of this seagrass.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103981"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145692358","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}

引用次数: 0

Effect of petrochemical contaminants on the photosynthetic physiology on the seagrass Halophila baillonii Ascherson 石化污染物对海草光合生理的影响

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2025-12-17 DOI: 10.1016/j.aquabot.2025.103984

Maria Cecilia S. Lima , Thomaz Henrique A. Lima , Marcus V. Loss Sperandio , Gilvan Takeshi Yogui , João Silva , Karine M. Magalhães

{"title":"Effect of petrochemical contaminants on the photosynthetic physiology on the seagrass Halophila baillonii Ascherson","authors":"Maria Cecilia S. Lima , Thomaz Henrique A. Lima , Marcus V. Loss Sperandio , Gilvan Takeshi Yogui , João Silva , Karine M. Magalhães","doi":"10.1016/j.aquabot.2025.103984","DOIUrl":"10.1016/j.aquabot.2025.103984","url":null,"abstract":"<div><div>Oil spills represent a significant threat to seagrasses as hydrocarbons can impair photosynthetic processes and plant functioning, although physiological responses may vary depending on the spill and environmental conditions This study investigates the physiological responses of <em>Halophila baillonii</em> when exposed to the water-soluble fraction (WSF) of crude oil. Photosynthetic pigment composition, maximum quantum yield (Fv/Fm), and oxidative stress indicators malondialdehyde (MDA) and hydrogen peroxide (H₂O₂) were analyzed after short-term exposure. A significant increase in chlorophyll <em>a</em> and <em>b</em> concentrations and variations in carotenoid levels were detected, while photochemical efficiency and oxidative stress indicators were maintained. These findings suggest that the species dynamically adjusts its pigment composition to optimize light capture and mitigate oxidative stress, demonstrating physiological plasticity. Its ability to tolerate WSF exposure highlights the species' short-term resilience to hydrocarbon pollution. Future studies should investigate the effects of long-term exposure to different oil types, such as boat fuel, and the recovery mechanisms of seagrasses.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103984"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797577","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}

引用次数: 0

Grazing preferences of Sarpa salpa on temperate habitat-forming macroalgae 泥鳅对温带生境形成型大型藻类的放牧偏好

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2026-01-07 DOI: 10.1016/j.aquabot.2026.103994

Jonas de Azevedo , Francisco Arenas , Aldo Barreiro , João N. Franco

{"title":"Grazing preferences of Sarpa salpa on temperate habitat-forming macroalgae","authors":"Jonas de Azevedo , Francisco Arenas , Aldo Barreiro , João N. Franco","doi":"10.1016/j.aquabot.2026.103994","DOIUrl":"10.1016/j.aquabot.2026.103994","url":null,"abstract":"<div><div>Herbivory is intensifying on many temperate reefs under ocean warming and tropicalisation, raising concerns for canopy-forming seaweeds. Along the Portuguese coast, the obligate herbivore <em>Sarpa salpa</em> is abundant and frequently observed grazing on kelps and fucoids. We tested whether wild <em>S. salpa</em> shows consistent feeding preferences among four habitat-forming brown macroalgae—<em>Laminaria ochroleuca</em>, <em>Fucus spiralis</em>, <em>Sargassum muticum</em> and <em>Cystoseira humilis</em>—and whether simple stoichiometric signals (C and N) align with observed choices. Using outdoor, submerged mesocosms at Sines region (SW Portugal), we ran four sequential no-choice trials conducted over a 12-day period (with 48 h intervals between session) followed by choice assays (days 5–6). Consumption was recorded as 24-h wet-mass loss, standardised to grazer biomass (g·kg⁻¹), and elemental C and N were measured in algal tissues and fish faeces to infer assimilation. Fish readily consumed all species in no-choice trials, indicating no gross non-palatability. Under simultaneous availability, however, <em>S. salpa</em> consistently consumed more <em>F. spiralis</em>, <em>L. ochroleuca</em> and <em>S. muticum</em> than <em>C. humilis</em>, revealing non-uniform selection. Tissue composition differed among species: <em>L. ochroleuca</em> had the highest N and lowest C:N ratio, which aligned with the highest apparent N assimilation by the fish. This clear link between simple stoichiometry and assimilation suggests that species-specific nutritional payoffs are a key mechanistic driver of preference. Given the warming and tropicalising context of NE Atlantic reefs, this trait-based selectivity is significant: it may amplify canopy vulnerability (particularly of high-quality species) and favour turf-dominated states at warm range margins. We recommend integrating herbivory metrics (selectivity, bite rates, grazer biomass) into monitoring, conservation and restoration to safeguard Portuguese marine forests.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103994"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973032","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}

引用次数: 0

The ionome of aquatic plants Lemna minor L. under abiotic stresses 水生植物小叶菜在非生物胁迫下的电离素

IF 2.6 4区生物学

Aquatic Botany Pub Date : 2026-05-01 Epub Date: 2026-01-17 DOI: 10.1016/j.aquabot.2026.103996

Irina Bodnar, Evgenia Cheban

{"title":"The ionome of aquatic plants Lemna minor L. under abiotic stresses","authors":"Irina Bodnar, Evgenia Cheban","doi":"10.1016/j.aquabot.2026.103996","DOIUrl":"10.1016/j.aquabot.2026.103996","url":null,"abstract":"<div><div>The content of macroelements in plants is regulated by genetic factors and depends on the environment. Plant ionome is species-specific, the impact of stressors, imbalance of mineral nutrition, including excessive intake of heavy metals, changes the level of macro- and microelements, which affects the physiological state of plants, growth and development. In this work, it is shown that the impact of heavy metals (Cu<sup>2 +</sup>, Cd<sup>2+</sup>, Zn<sup>2+</sup>) and gamma radiation led to a change in the accumulation of Ca<sup>2+</sup>, Mg<sup>2+</sup> and K<sup>+</sup> in <em>Lemna minor</em> L., which is a model plant in ecotoxicological experiments and is promising for phytoremediation of polluted water bodies. With the considered effects, a dose-dependent decrease in growth was observed in the form of a decrease in the total area of duckweed fronds; the toxicity series for this group of metals is Cu<sup>2+</sup>>Cd<sup>2+</sup>>Zn<sup>2+</sup>. Duckweed can be classified as an accumulator of heavy metals; aquatic plants accumulated Zn<sup>2+</sup> most efficiently (BCF>1000). The general change in the macronutrient profile under the influence of heavy metals and radiation was an increase in Ca<sup>2+</sup> accumulation. The Mg<sup>2+</sup> level increased after irradiation (42, 63 Gy), exposure to Cd<sup>2+</sup> (12.6 μM), Zn<sup>2+</sup> (3.15, 6.3, 1<sup>2.</sup>6 μM) and Cu<sup>2+</sup> (3.15, 6.3 μM). The K<sup>+</sup> content decreased under the influence of chemical agents (Cu<sup>2+</sup>), but did not change after irradiation. The obtained data can be used in assessing the quality of natural and waste waters with the interpretation of the plant ionome as a stress biomarker.</div></div>","PeriodicalId":8273,"journal":{"name":"Aquatic Botany","volume":"204 ","pages":"Article 103996"},"PeriodicalIF":2.6,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034333","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}

引用次数: 0