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    Nitrogen phytoremediation by water hyacinth (Eichhornia crassipes (Mart.) Solms)

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    The phytoremediation potential of water hyacinth, Eichhornia crassipes (Mart.) Solms, was examined in two independent studies under nitrogen (N) rates of 0, 40, 80, 100, 150, 200, and 300 ppm. A modified Hoagland solution was added to ponds containing water hyacinths which were rated and measured weekly for 4 weeks. The hyacinths accounted for 60¿85% of the N removed from solution. Net productivity, as measured by dry matter gain, increased with an increase in N rate until 80 ppm. Above that level dry matter productivity was similar. Tissue N increased linearly with dry matter gain, but total nitrogen removal from the water increased exponentially with net dry matter gain or with an increase in canopy cover. The relation between total N in plant tissue and N removal from the water was similar for the two experiments

    Arrowleaved monochoria (Monochoria hastata (L.) Solms)

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    Apresenta imagem de sementes de arrowleaved monochoria (Monochoria hastata (L.) Solms)Educação Superior::Ciências Biológicas::Botânic

    กายวิภาคศาสตร์เปรียบเทียบและสัณฐานวิทยาเรณูของผักตบไทย (Monochoria hastata (L.) Solms var. hastata) และผักตบชวา (Eichhornia crassipes (Mart.) Solms)

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    Comparative Anatomy and Pollen Morphology of Pondweed (Monochoria hastata (L.) Solms var. hastata) and Water Hyacinth (Eichhornia crassipes (Mart.) Solms)   Benchawon Chiwapreecha and Supakorn Thaima   รับบทความ: 15 พฤศจิกายน 2561; แก้ไขบทความ: 27 กรกฎาคม 2562; ยอมรับตีพิมพ์: 15 กันยายน 2562     บทคัดย่อ การศึกษากายวิภาคศาสตร์เปรียบเทียบและเรณูวิทยาของผักตบไทย (Monochoria hastata (L.) Solms var. hastata) และผักตบชวา (Eichhornia crassipes (Mart.) Solms) ซึ่งเป็นพืชน้ำในวงศ์ Pontederiaceae ที่พบในแหล่งที่อยู่อาศัยเดียวกัน ศึกษาลักษณะทางกายวิภาคศาสตร์ของแผ่นใบ ก้านใบ และก้านช่อดอก ด้วยกรรมวิธีพาราฟิน (paraffin method) ลอกผิวแผ่นใบเพื่อศึกษาเนื้อเยื่อชั้นผิว พบลักษณะที่มีความแตกต่างกัน ได้แก่ ภาคตัดขวางของแผ่นใบ ก้านใบ และก้านช่อดอกของผักตบไทย มีปริมาณคลอเรงคิมาร้อยละ 35.65±5.74  6.78±0.28 และ 6.34±0.19 ต่อตารางมิลลิเมตร ตามลำดับ ซึ่งมากกว่าของผักตบชวา (ร้อยละ 23.95±0.44  3.82±0.37 และ 1.00±0.28 ต่อตารางมิลลิเมตร ตามลำดับ) ในทำนองเดียวกัน ชั้นแพลิเซดในแผ่นใบของผักตบไทยมีความหนา 6–8 ชั้นเซลล์ ซึ่งมีจำนวนชั้นมากกว่าผักตบชวาที่มีเพียง 4–6 ชั้นเซลล์ ความหนาแน่นปากใบของผักตบไทยเท่ากับ 129.33±5.98 ปากใบต่อตารางมิลลิเมตร ซึ่งมากกว่าผักตบชวาที่มี 115.07±2.52 ปากใบต่อตารางมิลลิเมตร ในขณะที่แอเรงคิมาในแผ่นใบของผักตบไทยมีความหนาเพียง 1 ชั้นเซลล์ แต่ผักตบชวาหนา 1–3 ชั้นเซลล์ นอกจากนี้ยังพบตำแหน่งปากใบที่ระดับเดียวกับเนื้อเยื่อชั้นผิว (typical stomata) และสูงกว่าเนื้อเยื่อชั้นผิว (raised stomata) รวมถึงการสะสมผลึก ในทุกส่วนที่ทำการศึกษาของผักตบไทย ในขณะที่ก้านใบและก้านช่อดอกของผักตบชวาพบเฉพาะปากใบที่ระดับเดียวกับเนื้อเยื่อชั้นผิว และพบการสะสมผลึก การศึกษาลักษณะทางสัณฐานวิทยาของเรณู ด้วยกรรมวิธีอะซีโตไลซิส (acetolysis) แสดงลักษณะเด่นร่วมกันของพืชทั้ง 2 ชนิด ได้แก่ เป็นเรณูเดี่ยว (monad) สมมาตรแบบด้านข้าง (bilateral) ขั้วแบบ heteropolar ช่องเปิดแบบ monosulcate และ รูปร่างแบบ oblate สำหรับลักษณะที่แตกต่างกัน พบว่า ผักตบไทยมีเรณูขนาดกลางถึงใหญ่ (33–56 ไมครอน) และลวดลายบนผนังเป็นแบบ granulate ในขณะที่ผักตบชวามีเรณูขนาดใหญ่ (59–84 ไมครอน) และลวดลายบนผนังเป็นแบบ rugulate คำสำคัญ: ชนิดพันธุ์ต่างถิ่น  พืชน้ำ  เรณูวิทยา  เนื้อเยื่อพืช     Abstract The comparative anatomy and pollen morphology of pondweed (Monochoria hastata (L.) Solms var. hastata) and water hyacinth (Eichhornia crassipes (Mart.) Solms) that found in the same habitat were studied. For anatomy, paraffin method was examined of the transverse section on leaf blade, petiole and peduncle. The leaf blade surfaces were peeled to study the epidermal layers. The result showed there was difference in quantity of chlorenchyma in leaf blade, petiole and peduncle between M. hastata and E. crassipes: M. hastata were higher than E. crassipes (35.65±5.74, 6.78±0.28 and 6.34±0.1 %/mm2 respectively vs 23.95±0.44, 3.82±0.37 and 1.00±0.28 %/mm2 respectively). Also, there were higher number of palisade mesophyll layers on M. hastata (6–8 layers) than on the E. crassipes (4–6 layers), and there were higher of stomata density on M. hastata (129.33±5.98 stomata/mm2) than on E. crassipes (115.07± 2.52 stomata/mm2). However, M. hastata showed equal or lower in the number of aerenchyma layers in mesophyll (1 layer) than on E. crassipes (1–3 layers). In addition, the above three parts (leaf blade, petiole and peduncle) of M. hastata and the leaf blade of E. crassipes showed typical and raised stomata, and the crystal accumulation, while the petiole and peduncle of E. crassipes were only showed the typical stomata and there was crystal accumulation. Later, acetolysis method was used to study pollen morphology. It was found that both species’ pollen was monad, bilateral symmetry, heteropolar, monosulcate and oblate shape. However, there was difference in pollen size and exine sculpturing between these two species. M. hastata was medium to large (33–56 µm) and granulate, while E. crassipes was large (59–84 µm) and rugulate. Keywords: Alien species, Aquatic plant, Palynology, Plant tissu

    GC-MS ANALYSIS OF INVASIVE AQUATIC WEED, PISTIA STRATIOTES L. AND EICHHORNIA CRASSIPES (MART.) SOLMS

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    Objective: To investigate the bioactive components of an invasive aquatic weed, Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms vegetative parts by using Gas Chromatography-Mass Spectrometer (GC-MS).Methods: The chemical compositions of the ethanol extract of whole plant Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms was investigated using Agilent Technologies GC-MS (GC-7890A, MS 5975C).Results: The results of GC-MS analysis of the ethanolic extract revealed the existence of 28 phytochemical compounds in Pistia stratiotes L. n-Hexadecanoic acid,-11-Hexadecenoic acid, ethyl ester, Hexadecanoic acid, ethyl ester, Octadecanoic acid, ethyl ester, 2-Cyclopenten-1-one, 5-hydroxy-2,3-dimethyl, L-Glutamine, 2-Pentadecanone, 6,10,14-trimethyl, Linolelaidic acid, methyl ester, 9,12,15-Octadecatrienoic acid, methyl ester,(Z,Z,Z), Nonadecane, 12,15-Octadecadiynoic acid, methyl ester, Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, Diisooctyl phthalate, Docosanoic acid, ethyl ester, Stigmasterol, Bis(2-ethylhexyl) phthalate, 1-Monolinoleoylglycerol trimethylsilyl ether, Ethyl iso-allocholate are the major compound.The ethanolic extract of Eichhornia crassipes (Mart.) Solms contains 43 phytochemical compounds of high and low molecular weight n-Hexadecanoic acid, E-11-Hexadecenoic acid, ethyl ester, Palmitic acid, Phytol, 9,12,15-Octadecatrienal, 9,12-Octadecadienoic acid, ethyl ester, Linolenic acid, ethyl ester, Stearic acid, ethyl ester, Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, α-Glyceryl linolenate, 1-Monolinoleoylglycerol trimethylsilyl ether, Linoleic acid, 2,3-bis-(O-TMS)-propyl ester, Stigmasterol, Linolelaidic acid, methyl ester, 9,12,15-Octadecatrienoic acid, ethyl ester, (Z,Z,Z), Ethyl iso-allocholate, Cholesta-22,24-dien-5-ol, 4,4-dimethyl are the major compounds.These results indicates Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms possess potent antioxidant, anti-inflammatory, anticancer, antitumour, antiarthritic, cancer preventive, antibacterial effects so can be recommended as a plant of phytopharmaceutical importance.Conclusion: The ethanol extract of Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms proves as a potential source of bioactive compounds of pharmacological importance.</jats:p

    GC-MS ANALYSIS OF INVASIVE AQUATIC WEED, PISTIA STRATIOTES L. AND EICHHORNIA CRASSIPES (MART.) SOLMS

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    Objective: To investigate the bioactive components of an invasive aquatic weed, Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms vegetative parts by using Gas Chromatography-Mass Spectrometer (GC-MS).Methods: The chemical compositions of the ethanol extract of whole plant Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms was investigated using Agilent Technologies GC-MS (GC-7890A, MS 5975C).Results: The results of GC-MS analysis of the ethanolic extract revealed the existence of 28 phytochemical compounds in Pistia stratiotes L. n-Hexadecanoic acid,-11-Hexadecenoic acid, ethyl ester, Hexadecanoic acid, ethyl ester, Octadecanoic acid, ethyl ester, 2-Cyclopenten-1-one, 5-hydroxy-2,3-dimethyl, L-Glutamine, 2-Pentadecanone, 6,10,14-trimethyl, Linolelaidic acid, methyl ester, 9,12,15-Octadecatrienoic acid, methyl ester,(Z,Z,Z), Nonadecane, 12,15-Octadecadiynoic acid, methyl ester, Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, Diisooctyl phthalate, Docosanoic acid, ethyl ester, Stigmasterol, Bis(2-ethylhexyl) phthalate, 1-Monolinoleoylglycerol trimethylsilyl ether, Ethyl iso-allocholate are the major compound.The ethanolic extract of Eichhornia crassipes (Mart.) Solms contains 43 phytochemical compounds of high and low molecular weight n-Hexadecanoic acid, E-11-Hexadecenoic acid, ethyl ester, Palmitic acid, Phytol, 9,12,15-Octadecatrienal, 9,12-Octadecadienoic acid, ethyl ester, Linolenic acid, ethyl ester, Stearic acid, ethyl ester, Hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester, α-Glyceryl linolenate, 1-Monolinoleoylglycerol trimethylsilyl ether, Linoleic acid, 2,3-bis-(O-TMS)-propyl ester, Stigmasterol, Linolelaidic acid, methyl ester, 9,12,15-Octadecatrienoic acid, ethyl ester, (Z,Z,Z), Ethyl iso-allocholate, Cholesta-22,24-dien-5-ol, 4,4-dimethyl are the major compounds.These results indicates Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms possess potent antioxidant, anti-inflammatory, anticancer, antitumour, antiarthritic, cancer preventive, antibacterial effects so can be recommended as a plant of phytopharmaceutical importance.Conclusion: The ethanol extract of Pistia stratiotes L. and Eichhornia crassipes (Mart.) Solms proves as a potential source of bioactive compounds of pharmacological importance

    Datos sobre Eichhornia crassipes (Mart.) Solms (PONTEDERIACEAE)

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    For botanical information from Eichhornia crassipes (Mart.) Solms (Pontederiaceae) known as Water Hyacinth and Camalote, observations and studies have been made of invasive populations in the Guadiana River in the province of Badajoz (Extremadura, Spain) where the plant has probably spread when it is thrown into the river or some of its tributaries, apparently since 2003-2004. The rapid diffusion causes were studied with field observations and laboratory studies. The biology of this species has been studied elsewhere (and previously in Extremadura), as reflected in the accompanying bibliography. The information of 18 years of follow-up. . Pérez-Chiscano, J. L. & Vázquez F.M. 2020. Data on Eichhornia crassipes (Mart.) Solms (PONTEDERIACEAE). Fol. Bot. Extremadurensis, 14: 15-23.Para obtener información botánica de Eichhornia crassipes (Mart.) Solms (Pontederiaceae) conocida como Jacinto de agua y Camalote, se han hecho observaciones y estudios de las poblaciones invasoras en el río Guadiana en la provincia de Badajoz (Extremadura, España) donde la planta se ha extendido probablemente al ser arrojada al rio o a algunos de sus afluentes, al parecer desde 2003-2004. Se han estudiado las causas de tan rápida difusión con observaciones en campo y estudios en laboratorio. La biología de esta especie ha sido estudiada en otros lugares (y anteriormente en Extremadura), como se refleja en la bibliografía adjunta. La información procede de 18 años de seguimiento. Pérez-Chiscano, J. L. & Vázquez, F.M. 2020. Datos sobre Eichhornia crassipes (Mart.) Solms (PONTEDERIACEAE). Fol. Bot. Extremadurensis, 14: 15-23

    Do dreams protect sleep? Testing the Freudian hypothesis of the function of dreams

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    Includes bibliographical references.A review of the literature indicates that a physiological function for dreaming has not yet been empirically established. Based on recent findings regarding the neural correlates of dreaming, this study tested the Freudian hypothesis that dreams protect sleep. In order to do this, sleep architecture in patients who had experienced dream loss as a result of thrombotic stroke in the region of the posterior cerebral arteries was compared with that of patients with the same pathology who had not experienced dream loss. Using medical records, structural neuro-imaging, clinical interviews, neuropsychological testing, analysis of subjective sleep quality, and polysomnographic data collected over two consecutive nights in the sleep laboratory, two non-dreaming and three dreaming cases were studied. Analysis of the individual case studies indicates that sleep was disrupted in both non-dreaming cases

    Monochoria hastata Solms 1883

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    Pontederia hastata Linnaeus, Species Plantarum 1: 288. 1753. "Habitat in India." RCN: 2294. Lectotype (Horn & Haynes in Taxon 36: 622. 1987): Herb. Hermann 2: 52, No. 129 (BM-000621681). Current name: Monochoria hastata (L.) Solms (Pontederiaceae).Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part P), pp. 718-782 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 763, DOI: 10.5281/zenodo.29197

    Zu Ehren Hoch-Gräflicher Solms-Stolbergischer Vermählung / I. C. L. P. P. G.

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    Verf. handschriftlich ergänztAutopsie nach Ex. der ULB Sachsen-AnhaltFormat: ca. 33 x 21 cm. - Satzspiegel: 28,6 x 17,8 cmKopftitelErscheinungsjahr wurde nach handschriftlicher Ergänzung und durch andere Schriften zur Hochzeit bestimm

    Rectorem Academiae Magnificum Illustrissimos Comites a Solms & Wurmbrand, Ac Proceres Utriusque Reip. Gravissim. Ad audiendam Orationem Professionis suae Auspicatoriam observatissime atque officiose invitat L. Tilemann Andreas Rivinus, Hebraeae Linguae Professor Publ. & ad D. Thomae Archidiaconus Lips.

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    RECTOREM ACADEMIAE MAGNIFICUM ILLUSTRISSIMOS COMITES A SOLMS & WURMBRAND, AC PROCERES UTRIUSQUE REIP. GRAVISSIM. AD AUDIENDAM ORATIONEM PROFESSIONIS SUAE AUSPICATORIAM OBSERVATISSIME ATQUE OFFICIOSE INVITAT L. TILEMANN ANDREAS RIVINUS, HEBRAEAE LINGUAE PROFESSOR PUBL. & AD D. THOMAE ARCHIDIACONUS LIPS. Rectorem Academiae Magnificum Illustrissimos Comites a Solms & Wurmbrand, Ac Proceres Utriusque Reip. Gravissim. Ad audiendam Orationem Professionis suae Auspicatoriam observatissime atque officiose invitat L. Tilemann Andreas Rivinus, Hebraeae Linguae Professor Publ. & ad D. Thomae Archidiaconus Lips. ([1]) Titelseite ([1]) Text ([1]
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