Botany Letters最新文献_第9页

Pinkish-achened form of Taraxacum hybernum Steven – a source of inulin and high molar mass natural rubber 蒲公英的Pinkish成熟形式——菊粉和高摩尔质量天然橡胶的来源

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-11-17 DOI: 10.1080/23818107.2022.2147998

B. Kuluev, A. Fateryga, E. Zakharova, Vadim Zakharov, A. Chemeris

{"title":"Pinkish-achened form of Taraxacum hybernum Steven – a source of inulin and high molar mass natural rubber","authors":"B. Kuluev, A. Fateryga, E. Zakharova, Vadim Zakharov, A. Chemeris","doi":"10.1080/23818107.2022.2147998","DOIUrl":"https://doi.org/10.1080/23818107.2022.2147998","url":null,"abstract":"ABSTRACT Taraxacum hybernum Steven (Asteraceae family) native to Southeast Europe is a promising rubber-bearing dandelion species. In the 1930s, several phenotypically distinct forms were described in this dandelion, such as brown-achened and pinkish-achened. More than 70 years after termination of research of temperate zone rubber-bearing plants we were able to find both forms of this species of dandelion in natural habitat. The species is still poorly studied, and there is no information about the differences in the quality and quantity of rubber between brown-achened and pinkish-achened forms. Therefore, the purpose of our study was to analyze the root morphology and yield, the rubber and inulin content, and to determine the molar mass of rubber in brown-achened and pinkish-achened T. hybernum. These two forms of T. hybernum, as well as T. kok-saghyz Rodin and T. brevicorniculatum Korol., were studied. The results show that the root shape most attractive for domestication is typical of brown-achened T. hybernum. The greatest mass of roots was gained for pinkish-achened T. hybernum. The rubber content was about 6% in T. kok-saghyz, 3% in both forms of T. hybernum, and 1.5% in T. brevicorniculatum per dry root mass. Taraxacum kok-saghyz and pinkish-achened T. hybernum turned out to be the leaders in inulin content. Of all four dandelions, the molar mass of rubber was more than 1 million g/mol only for T. kok-saghyz and pinkish-achened T. hybernum. Pinkish-achened T. hybernum is a good alternative for T. kok-saghyz and can be recommended for domestication and cultivation in the temperate zone.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46892041","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: 1

A terrestrial hybrid quillwort, Isoetes ×angeloi, hyb. nov., (Isoetaceae) from Sicily 一种陆生杂交鹅掌草，Isoetes×angeloi，hyb。十一月，（Isoetaceae）来自西西里岛

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-11-08 DOI: 10.1080/23818107.2022.2138539

D. Brunton, Karen L. McIntosh, P. Sokoloff

引用次数: 0

Early leaf development of Typha domingensis Pers. (Typhaceae) 广东香蒲的早期叶片发育

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-11-03 DOI: 10.1080/23818107.2022.2136238

Felipe Fogaroli Corrêa, M. P. Pereira, R. Kloss, E. M. Castro, Jean Paulo Vitor de Oliveira, F. J. Pereira

{"title":"Early leaf development of Typha domingensis Pers. (Typhaceae)","authors":"Felipe Fogaroli Corrêa, M. P. Pereira, R. Kloss, E. M. Castro, Jean Paulo Vitor de Oliveira, F. J. Pereira","doi":"10.1080/23818107.2022.2136238","DOIUrl":"https://doi.org/10.1080/23818107.2022.2136238","url":null,"abstract":"ABSTRACT Typha domingensis Pers. (cattail) is a globally widespread aquatic plant that causes significant impacts as an invasive species; this ability is dependent on its photosynthetic capacity that is related to leaves. Thus, understanding leaf development is essential for interpreting shoot growth and the formation of its photosynthetic area. This study investigates leaf ontogeny in T. domingensis from early stages until complete development of primary tissues. Plants were collected from natural wetlands and cultivated in a greenhouse. Rhizomes were then selected, and leaves were removed to enable the emergence of new shoots. Rhizome fragments containing leaves were collected at 1-day intervals until day 7 and were subjected to routine procedures in plant microtechnique. New leaves emerged from lateral buds located along the rhizome. The anatomy of scale leaves differs from that of photosynthetic leaves since they contain solid inclusions without palisade parenchyma. Leaf primordia arose laterally from the shoot apical meristem, which was organized as a tunica-corpus. Final leaf shape was influenced by different meristematic zones: the leaf apical meristem, the marginal meristem, the rib meristem, and intercalary meristems. Most leaf tissues developed basipetally, except for xylem and phloem. Within seven days following leaf initiation, all primary tissues were developed and morphologically functional. Leaf formation of Typha domingensis is similar to that of other monocot species. Leaves of T. domingensis develop very early, providing fully functional photosynthetic tissues, which may have implications for its invasive capacity.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49405811","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

Genetic characterization and pollen viability of a natural putative hybrid of Begonia boliviensis × B. micranthera (Begoniaceae) from Argentina 玻利维亚秋海棠×micranthera（秋海棠科）天然杂交种的遗传特性和花粉活力

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-10-30 DOI: 10.1080/23818107.2022.2135020

A. R. Andrada, V. A. Páez, G. M. Silenzi Usandivaras, M. Tebbitt, P. Albornoz, G. R. Vellicce

{"title":"Genetic characterization and pollen viability of a natural putative hybrid of Begonia boliviensis × B. micranthera (Begoniaceae) from Argentina","authors":"A. R. Andrada, V. A. Páez, G. M. Silenzi Usandivaras, M. Tebbitt, P. Albornoz, G. R. Vellicce","doi":"10.1080/23818107.2022.2135020","DOIUrl":"https://doi.org/10.1080/23818107.2022.2135020","url":null,"abstract":"ABSTRACT An orange-flowered natural putative hybrid of Begonia boliviensis × B. micranthera was recently discovered from Calilegua National Park in Jujuy Province, Argentina. Propionic hematoxilyn method was applied to study its chromosomal behavior during meiosis, Müntzing’s stain solution was used to determine pollen grain fertility and ITS2 and rbcL sequences were amplified to help confirm the parentage of the putative hybrid. This plant has a gametophytic chromosome number of n = 13, very regular meiotic behavior and an intermediate percentage of viable pollen compared to other studied natural putative hybrids. The ITS2 sequence data support the parentage of the putative hybrid begonia but sequence comparison shows its ITS2 sequence is more similar to B. micranthera than to B. boliviensis. The molecular marker rbcLa revealed that there are no differences between the sequences for B. boliviensis, B. micranthera and the putative hybrid. Begonia boliviensis × B. micranthera is a diploid plant that, due to its moderately high pollen fertility (43.3%) compared to other natural Begonia hybrids (which are often sterile) and regular meiosis, would likely be able to self-cross or cross with other begonia taxa.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49167459","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

Foliar morphology and epidermal ultrastructure of four Selaginella species (Selaginellaceae – Lycophyta) 四种卷柏属植物的叶片形态和表皮超微结构（卷柏科-石藻门）

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-10-16 DOI: 10.1080/23818107.2022.2134205

Priscila D. López, O. G. Martínez, M. Ponce

{"title":"Foliar morphology and epidermal ultrastructure of four Selaginella species (Selaginellaceae – Lycophyta)","authors":"Priscila D. López, O. G. Martínez, M. Ponce","doi":"10.1080/23818107.2022.2134205","DOIUrl":"https://doi.org/10.1080/23818107.2022.2134205","url":null,"abstract":"ABSTRACT The leaf morphology of Selaginella species from subtropical South America show differences in structure and ultrastructure that are useful for species identification. We studied the following epidermal traits: micromorphology of stomatal types, distribution patterns of silica cells, silica cells and silica bodies of Selaginella convoluta, S. microphylla, S. sellowii and S. sulcata, using light and scanning electron microscopy. Five stomatal types were observed, anomocytic, actinocytic, anisocytic, staurocytic and tetracytic and two additional variants, anomodiacytic and anomoparacytic. Five silica cell distribution patterns were identified, laminar, medial, medial-basiscopic, subcostal, and submarginal. Pyramidal silica bodies and conical bodies with concave base are described for the first time. In the studied species, silica bodies are pyramidal in S. convoluta and globular, conical and pyramidal in S. microphylla, whereas in S. sellowii and S. sulcata they are conical, with concave base of different sizes. Illustrations of the epidermal features, LM photographs, SEM micrographs and comparative tables are presented.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46483313","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

Useful plants described in the Plantes Équinoxiales (1805–1817) by Alexander von Humboldt and Aimé Bonpland 亚历山大·冯·洪堡和艾姆斯·邦普兰在《植物》Équinoxiales(1805-1817)中描述的有用植物

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-10-16 DOI: 10.1080/23818107.2022.2135021

L. Baratto

{"title":"Useful plants described in the Plantes Équinoxiales (1805–1817) by Alexander von Humboldt and Aimé Bonpland","authors":"L. Baratto","doi":"10.1080/23818107.2022.2135021","DOIUrl":"https://doi.org/10.1080/23818107.2022.2135021","url":null,"abstract":"ABSTRACT Alexander von Humboldt and Aimé Bonpland departed from Europe on a journey to the American continent. The naturalists explored America’s biodiversity, collecting approximately 6,000 plant species between 1799 and 1804 and registering the customs and habits of local people. To date, the medicinal and useful plants reported by Humboldt and Bonpland during their American journey have not been studied in depth. The aim of the present report is to present data recorded by both naturalists in their books Voyage de Humboldt et Bonpland. Sixième Partie, Botanique. Plantes Équinoxiales (Volumes I and II), published from 1805 to 1817 in 17 parts, regarding medicinal and useful plants collected by them. Data on plants were obtained from the two-volume work, which was deposited and accessed in the library of the Biological Sciences Sector of Universidade Federal do Paraná, Curitiba, Brazil. Traditional information about the plants was translated and tabulated. The botanical identification of each plant was updated according to current nomenclature. Correlated pharmacological studies were obtained from scientific databases. A total of 130 plant species from 49 different botanical families are described in the Humboldt’s and Bonpland’s Plantes Équinoxiales books. Fourteen species were reported for medical purposes (snake anti-venom agents, treatment of cutaneous and digestive diseases, and astringent agents), while 65 species were described for some other use (ornamental, construction, furniture and objects, edible plants, dyeing, mining etc.). The data recorded by these naturalists represent a rich unexplored source of information regarding the American flora and its traditional uses.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45240130","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: 1

A comparative study of the volatiles emitted by flowers of three Hedychium species from La Réunion 留尼旺三种冬青花挥发物的比较研究

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-09-28 DOI: 10.1080/23818107.2022.2125901

A. Gauvin-Bialecki, J. Smadja

引用次数: 0

First evidence of Ricciaceae in the Jurassic of the Iberian Peninsula (Asturias, NW Spain): Ricciopsis asturicus sp. nov 伊比利亚半岛侏罗纪(西班牙西北部阿斯图里亚斯)蓖麻科的首个证据:蓖麻属

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-09-27 DOI: 10.1080/23818107.2022.2124452

Artai A. Santos, L. M. Sender, Laura Piñuela, J. García-Ramos, J. Díez

{"title":"First evidence of Ricciaceae in the Jurassic of the Iberian Peninsula (Asturias, NW Spain): Ricciopsis asturicus sp. nov","authors":"Artai A. Santos, L. M. Sender, Laura Piñuela, J. García-Ramos, J. Díez","doi":"10.1080/23818107.2022.2124452","DOIUrl":"https://doi.org/10.1080/23818107.2022.2124452","url":null,"abstract":"ABSTRACT A new species of liverwort, Ricciopsis asturicus sp. nov., is described from dinosaur-bearing Kimmeridgian (Upper Jurassic) deposits of the Lastres Formation in Asturias (NW Spain, Iberian Peninsula) based on a new combination of taxonomic characters, including differences in thallus shape, branching, segment surface, size, and shape. This new species represents the oldest evidence of bryophyte from the Mesozoic of the Iberian Peninsula so far, and it also represents the first evidence of the genus Ricciopsis in this area. In addition to the description of the Ricciaceae remains, palynological analyses were carried out in order to understand the paleoenvironmental context. The remains of Ricciopsis asturicus sp. nov. were found in life position on grey marly siltstones forming dense mats, suggesting that some areas of the Lastres Formation presented shallow freshwater pools placed in channel abandonment areas into an upper deltaic plain, where these mats of liverworts could proliferate during the apparent semiarid climatic conditions occurring during the deposit of the Lastres Formation. This interpretation is supported by the palynological study, which reveals the presence of ferns and Cheirolepidaceae plants (Leptolepidites sp., Klukisporites sp., and tetrads of Classopollis sp.) in nearby areas.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42455991","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: 4

First records of the conifers Majonica and Ortiseia from the German Zechstein (upper Permian) of east Thuringia and west Saxony, Germany 德国图林根州东部和萨克森州西部的德国Zechstein（上二叠纪）的首次针叶树记录

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-09-23 DOI: 10.1080/23818107.2022.2122555

H. Kerp, Hendrik Bödige, B. Bomfleur, J. Schneider

引用次数: 2

How much do we know and how much do we care about genetic diversity of threatened plants ? A case study from the French flora 我们对濒危植物的遗传多样性了解多少，关心多少?以法国植物区系为例

IF 1.5 4区生物学

Botany Letters Pub Date : 2022-09-23 DOI: 10.1080/23818107.2022.2125902

Juliette Ducrettet, S. Maurice, E. Imbert

{"title":"How much do we know and how much do we care about genetic diversity of threatened plants ? A case study from the French flora","authors":"Juliette Ducrettet, S. Maurice, E. Imbert","doi":"10.1080/23818107.2022.2125902","DOIUrl":"https://doi.org/10.1080/23818107.2022.2125902","url":null,"abstract":"ABSTRACT Small demographic size and reduced genetic diversity increase the extinction probability of a population. Genetic diversity within populations for neutral markers is an heuristic parameter, as it reflects past and ongoing processes acting on populations, and informs on possible futures. This study presents a synthesis of the knowledge on neutral genetic diversity for threatened plants in metropolitan France and the use of such data in management actions. Pairing threatened species with the closest non-threatened species for which we could find appropriate genetic data, we collected information on genetic diversity for 25 threatened species and non-threatened controls. We found that threatened species in France have on average a lower within-population genetic diversity than non-threatened controls and thus are exposed to risks linked to genetic erosion. Combining an analysis of recovery plans and a survey addressed to practitioners, we concluded that genetic diversity is rarely integrated in management actions. The integration of such information into applied conservation remains a challenge. We provide some guidelines to collect biological traits impacting within-population genetic diversity and some specific recommendations for a better incorporation of population genetics concepts into conservations actions.","PeriodicalId":54302,"journal":{"name":"Botany Letters","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47757618","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