Boletin De La Sociedad Argentina De Botanica最新文献_第10页

Morphological variability of the nanoplanktonic diatom Thalassiosira laevis from coastal waters of Province of Buenos Aires (Argentina) 阿根廷布宜诺斯艾利斯省沿海海域纳米浮游硅藻的形态变异

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-12-15 DOI: 10.31055/1851.2372.V52.N4.18841

E. Sar, Inés Sunesen

引用次数: 0

Modificaciones anatómicas y químicas en el leño de ejemplares del arbolado de la ciudad de La Plata (Buenos Aires) causadas por Laetiporus sulphureus (Basidiomycota, Polyporales) 拉普拉塔市(布宜诺斯艾利斯)木材标本的解剖和化学变化引起的Laetiporus sulphureus(担子菌门，Polyporales)

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-12-15 DOI: 10.31055/1851.2372.V52.N4.18843

Mónica Murace, M. L. Luna, María G. G. Ciuffani, A. Perelló

{"title":"Modificaciones anatómicas y químicas en el leño de ejemplares del arbolado de la ciudad de La Plata (Buenos Aires) causadas por Laetiporus sulphureus (Basidiomycota, Polyporales)","authors":"Mónica Murace, M. L. Luna, María G. G. Ciuffani, A. Perelló","doi":"10.31055/1851.2372.V52.N4.18843","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N4.18843","url":null,"abstract":"Anatomical and chemical modifications in the wood of specimens of trees of La Plata city (Buenos Aires) caused by Laetiporus sulphureus (Basidiomycota, Polyporales). L. sulphureus is an important pathogen causing brown rot in urban trees worldwide. In La Plata city, this fungus was found in specimens of white poplar, green ash, eucalyptus and chinaberry. The objective of this study was to analyze the structural and chemical alterations caused by L. sulphureus in white poplar, green ash, eucalyptus and chinaberry in order to contribute to the diagnosis of the risk that implies their deterioration for inhabitants, their goods and tree diversity in the city. Anatomical studies were performed using light and scanning electron microscopes. Chemical analyses were carried out on samples of green ash and chinaberry, according to TAPPI standards. In all instances the damage was located in the heartwood, showing typical characteristics of advanced stages of brown rot decay. For each species specific alterations at the anatomical and chemical levels were registered, compatible with their structural differences. This is the first regional contribution on the type and degree of deterioration recorded in species naturally affected by L. sulphureus, useful for understanding the risks involved in the urban context.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82708696","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: 3

Nuevos registros de Xylariales (Ascomycota) para la Argentina 阿根廷木耳科(子囊菌科)的新记录

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-09-29 DOI: 10.31055/1851.2372.V52.N3.18021

Esteban Benjamin Sir, P. V. Silva, C. Robles, M. V. Vignale

引用次数: 1

Modificaciones histológicas foliares causadas por organismos fúngicos en tres especies de Myrtaceae.

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-09-29 DOI: 10.31055/1851.2372.V52.N3.18026

F. M. Mangone, M. Catania, P. Albornoz

{"title":"Modificaciones histológicas foliares causadas por organismos fúngicos en tres especies de Myrtaceae.","authors":"F. M. Mangone, M. Catania, P. Albornoz","doi":"10.31055/1851.2372.V52.N3.18026","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N3.18026","url":null,"abstract":"Histological changes in leaves caused by fungi in three species of Myrtaceae. The family Myrtaceae is one of the largest in Argentina. In the province of Tucuman, eleven native species inhabit, three of them, Blepharocalyx salicifolius (Kunth) O. Berg, Eugenia uniflora L. and Myrcianthes pungens (O. Berg) D. Legrand have medicinal, alimentary and forestry importance. Information about fungal species and histological foliar changes produced by them is limited. So the objective of this research is to identify the species of fungi present in leaves of these three tree species; and evaluate the anatomical changes caused by the presence of them. Conventional techniques and stains were used. Twelve fungal species were identified in the three arboreal hosts studied. Ten species were cited for the first time for Argentina. Puccinia psidii and Alternaria sp. were found more frequently. The most affected leaf tissues were the palisade and spongy parenchyma. The most significant lesion was that one observed in the leaf of E. uniflora, it was produced by Microsphaerospis arundinis. Fungal identified species increases the knowledge of the diversity of fungi associated with leaves in native tree species from province of Tucuman.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78823541","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

Determinación de la eficiencia de la micropropagación de genotipos de mandioca (Manihot esculenta, Euphorbiaceae) de interés para el Nordeste Argentino. 对阿根廷东北部木薯(Manihot esculenta，大戟科)基因型快繁殖效率的测定。

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-09-29 DOI: 10.31055/1851.2372.v52.n3.18029

Ricardo D. Medina, Silvia C. Schaller, N. R. Dolce, L. Mroginski

{"title":"Determinación de la eficiencia de la micropropagación de genotipos de mandioca (Manihot esculenta, Euphorbiaceae) de interés para el Nordeste Argentino.","authors":"Ricardo D. Medina, Silvia C. Schaller, N. R. Dolce, L. Mroginski","doi":"10.31055/1851.2372.v52.n3.18029","DOIUrl":"https://doi.org/10.31055/1851.2372.v52.n3.18029","url":null,"abstract":"Micropropagation efficiency determination of cassava (Manihot esculenta, Euphorbiaceae) genotypes of interest to the Northeast of Argentina. In vitro cassava propagation has been reported in numerous studies; however, the efficiency of multiplication had only been established in a very restricted number of cultivars and / or subcultures during micropropagation. In order to evaluate the in vitro multiplication of 20 economically important cassava cultivars of Northeast Argentina (six total subcultures performed every 30 days), uninodal segments were cultured in basal Murashige and Skoog (1962) supplemented with 0.01 mg/L of 1-naphthaleneacetic acid, 0.01 mg/L of 6-benzylaminopurine and 0.1 mg/L gibberellic acid. Plant regeneration was possible in 100% of the cultivars during the 6 subcultures. Regardless of the subculture, the average number of nodes regenerated per explant varied significantly among cultivar from two to five nodes per plants (P?0,0001). The average number of accumulated nodes was significantly different among cultivars with values that ranged from 46 to 16,568 nodes per plants (P?0,0001). Results show variability due to genotype, distinguishing three cultivars groups according to their propagation efficiency and growth in length ability. Determining the multiplication rate of different cassava cultivars is essential for optimizing micropropagation.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88073911","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 genus Stylosanthes (Fabaceae, Papilionoideae, Dalbergieae) in South America. -南美洲的柱花草属(豆科，凤蝶科，黄檀科)。

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-09-29 DOI: 10.31055/1851.2372.V52.N3.18033

R. Vanni

引用次数: 8

Desarrollo de especies leñosas nativas y exóticas en cipresales patagónicos. 巴塔哥尼亚柏树中本地和外来木本物种的发展。

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-09-29 DOI: 10.31055/1851.2372.V52.N3.18030

Marina Stecconi, L. Quevedo, A. Magnin, C. Torres, K. D. Lediuk, Maya Svriz, J. Grosfeld, J. Puntieri

{"title":"Desarrollo de especies leñosas nativas y exóticas en cipresales patagónicos.","authors":"Marina Stecconi, L. Quevedo, A. Magnin, C. Torres, K. D. Lediuk, Maya Svriz, J. Grosfeld, J. Puntieri","doi":"10.31055/1851.2372.V52.N3.18030","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N3.18030","url":null,"abstract":"Development of native and exotic woody species in the Patagonian cypress forests. The growth and architecture of forest-dwelling woody plants affect the dynamics of these communities. The present study was aimed at improving our understanding of the dynamics of Argentinean Austrocedrus chilensis forests through the study of length growth and architecture of some of the most frequent native and exotic woody species in these communities (natives: Aristotelia chilensis, Berberis microphylla, Lomatia hirsuta, Maytenus boaria, Myoschilos oblongum and Schinus patagonicus; exotics: Juniperus communis, Prunus avium, Pseudotsuga menziesii and Rosa rubiginosa). During the study period (20122014), the length growth of the main axis was not necessarily related to the height growth of labeled plants. Reductions in height were found for individuals of all species but P. menziesii and P. avium, which are exotics in Patagonia. The majority of plants presented notable deviations of the main axis from the vertical; the extent of this deviation was negatively correlated with both the length of the distal main-axis shoot and the height variation of the plant. The species under survey may be categorized in four functional groups according to their architecture. The invasion of these cypress forests by exotic species such as P. menziesii y P. avium, which belong to functional groups different from those of the most frequent coexisting native species, may promote the competitive replacement of native species by exotic species.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90757760","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: 3

Anatomia foliar del género Smallanthus (Asteraceae, Millerieae).

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-09-29 DOI: 10.31055/1851.2372.V52.N3.18027

Maira Soledad Vitali

引用次数: 3

Diferencias en el hábito de crecimiento como variable explicativa de la influencia climática en Prosopis flexuosa en el Desierto del Monte Central (Argentina). 生长习性的差异作为气候影响的解释变量，在蒙特中央沙漠(阿根廷)的Prosopis flexuosa。

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-09-29 DOI: 10.31055/1851.2372.V52.N3.18031

S. Piraino, F. R. Juñent

{"title":"Diferencias en el hábito de crecimiento como variable explicativa de la influencia climática en Prosopis flexuosa en el Desierto del Monte Central (Argentina).","authors":"S. Piraino, F. R. Juñent","doi":"10.31055/1851.2372.V52.N3.18031","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N3.18031","url":null,"abstract":"Tree growth habit differences as an explanatory variable of the climatic influence upon the radial growth variability of Prosopis flexuosa in the Central Monte Desert (Argentina). Dendroclimatological methods represent one of the most useful tools in analyzing the influence of climate upon the radial growth dynamics and morphology of woody species. In the Central Monte Desert, Prosopis flexuosa DC (algarrobo dulce), grows as one-stemmed as well as multi-stemmed tree. Previous researches showed the utility of the species ring widths as a proxy of climate variability. Nevertheless, these researches differed methodologically, by considering or rejecting the multi-stemmed trees. This work analyzed if the variability in the tree growth habit express differences in the algarrobo dulce dendroclimatological signal. Two tree-ring chronologies, one derived from the one-stemmed (UF) and the other from the multi-stemmed trees (MF) growing under the same ecological environment, were developed. The MF chronology showed higher sensibility than the UF to climate extremes and oscillation. This suggested that multi-stemmed trees represent a good proxy for explaining local climatic variability. Due to the widespread spatial distribution of this species, further works are needed to a deeper understanding of the presented results.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81661751","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: 2

Identificación de Leguminosae-Caesalpinioideae arbustivas-arbóreas y lianas de la selva Paranaense (Misiones, Argentina) utilizando caracteres vegetativos. 利用营养特征鉴定parana森林(Misiones，阿根廷)的豆科- caesalpinioideae灌木-乔木和藤本植物。

IF 0.6 4区生物学

Boletin De La Sociedad Argentina De Botanica Pub Date : 2017-09-29 DOI: 10.31055/1851.2372.V52.N3.18035

Marcelo R. Kostlin

{"title":"Identificación de Leguminosae-Caesalpinioideae arbustivas-arbóreas y lianas de la selva Paranaense (Misiones, Argentina) utilizando caracteres vegetativos.","authors":"Marcelo R. Kostlin","doi":"10.31055/1851.2372.V52.N3.18035","DOIUrl":"https://doi.org/10.31055/1851.2372.V52.N3.18035","url":null,"abstract":"Identification of woody Leguminosae-Caesalpinioideae of Paranaense forest (Misiones, Argentina) using vegetative characters. In this study, I explored the diversity of vegetative morphological traits of native taxa of Leguminosae-Caesalpinioideae (in the traditional circumscription) from Misiones Province of Argentina, in order to facilitate the identification of genera, species, subspecies, and varieties in the absence of flowers and fruits. Herbarium specimens from the 15 species of shrubs - trees and lianas of Caesalpinioideae belonging to 10 genera present in Misiones were studied. The analyzed traits were: life form, phyllotaxis, stem, leaf, stipules, glands and extrafloral nectaries, type of venation, pubescence, and buds. As a result, an identification key to all taxa studied and descriptions of vegetative characters of all the taxa are presented. A discussion of the diversity observed in vegetative characters is also added, as well as observations about distribution, habitat, and phenology. In addition, a vegetative key to subfamilies of shrubs-trees and lianas of Leguminosae of the Paranaense forests of Misiones is provided to facilitate identification of the Caesalpinioideae. In summary, these keys will be crucial for an accurate identification of Caesalpinioideae subfamily and their species, in seasons when flowers and fruits are absent.","PeriodicalId":49101,"journal":{"name":"Boletin De La Sociedad Argentina De Botanica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81442779","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