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Resposta fisiológica de sementes de chia e linhaça ao estresse hídrico 奇亚籽和亚麻籽对水分胁迫的生理反应
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772202
Raquel Stefanello, B. B. Viana, L. Neves
{"title":"Resposta fisiológica de sementes de chia e linhaça ao estresse hídrico","authors":"Raquel Stefanello, B. B. Viana, L. Neves","doi":"10.21826/2446-8231201772202","DOIUrl":"https://doi.org/10.21826/2446-8231201772202","url":null,"abstract":"Studies on water resources are important to understand seed germination. The objective of this study was to evaluate the physiological (germination) response of chia seeds and linseed to water stress. The seeds were placed on paper soaked in solutions of polyethylene glycol in diff erent osmotic potentials. Percentage of germination, fi rst germination count, and germination speed index were evaluated. The reduction of the osmotic potential of the substrate promoted a signifi cant decrease in the germination and vigor of the chia seeds and linseed. In conclusion, seeds of these species are not able to tolerate osmotic potentials equal to or lower than -0.15MPa, being making possible its cultivation areas with concentrations above osmotic potentials.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75024587","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
Interação entre porta-enxertos de citros e fungos micorrízicos arbusculares 柑橘砧木与丛枝菌根真菌的相互作用
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772214
Marina Martinello Back, Sandra Rieth, J. C. Giuliani, P. V. D. Souza
{"title":"Interação entre porta-enxertos de citros e fungos micorrízicos arbusculares","authors":"Marina Martinello Back, Sandra Rieth, J. C. Giuliani, P. V. D. Souza","doi":"10.21826/2446-8231201772214","DOIUrl":"https://doi.org/10.21826/2446-8231201772214","url":null,"abstract":"Arbuscular mycorrhizal fungi (AMF) support plant development, however, symbiosis depends on species of both symbionts. This study aimed to evaluate the interaction between rootstock citrus inoculated with species of arbuscular mycorrhizal fungi. Three rootstocks citrange ‘Fepagro C37 Reck’ [ Poncirus trifoliata (L.) Raf. x Citrus sinensis (L.) Osbeck.], ‘Hong-Kong’ kumquat ( Fortunella hindsii Swingle) and ‘Trifoliata’ ( Poncirus trifoliate ) were tested, inoculated with two species of AMF ( Glomus etunicatum W.N. Becker & Gerd.and Acaulospora sp. ) and a treatment not inoculated. We evaluated the height (cm), stem diameter (mm), leaf area (cm² / plant), leaf number, fresh and dry root and shoot weight (g), the level of reserves in tissues and the colonization of AMF in the roots. The species G. etunicatum and Acaulospora sp . colonized the roots of rootstocks, but they were only eff ective for ‘Fepagro C37 Reck’. Poncirus trifoliata had the highest vigor in the absence of AMF.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87437287","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
Variação na altura e na abundância de colmos e estruturas reprodutivas em populações pioneiras e maduras de Spartina alterniflora Loisel. e S. densiflora Brongn. ( Poaceae ) do sul do Brasil 互叶草先锋和成熟种群茎高、茎丰度和生殖结构的变化。它是一种非常罕见的植物。(禾本科)产于巴西南部
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772209
Vera Lúcia Caetano, Gabriela Greis, Adriana Martins Guedes de Azevedo, C. S. Costa
{"title":"Variação na altura e na abundância de colmos e estruturas reprodutivas em populações pioneiras e maduras de Spartina alterniflora Loisel. e S. densiflora Brongn. ( Poaceae ) do sul do Brasil","authors":"Vera Lúcia Caetano, Gabriela Greis, Adriana Martins Guedes de Azevedo, C. S. Costa","doi":"10.21826/2446-8231201772209","DOIUrl":"https://doi.org/10.21826/2446-8231201772209","url":null,"abstract":"This study aimed to quantify and elucidate the spatial variability of plant height and abundance of tillers and reproductive structures of the salt marsh grasses Spartina alterniflora Loisel. and Spartina densiflora Brongn. within and between pioneer ( 50 years of colonization) in southern Brazil. Both pioneer populations had taller tillers (p<0.01) than mature populations. Pioneer populations of S. densiflora also showed massive investment on tiller density (10,084 m-2), more infl orescences (557 m-2) and higher fecundity (16,258 seeds m-2) than the mature population (131 infl orescence m-2; 2,199 seeds m-2). High redox and reduction of phosphorus availability in the sediment away from the water line seem to explain decreasing densities of tiller and infl orescences inside S. densiflora mature populations. Fourteen percent of pioneer S. alterniflora tillers flowered and, on average, produced only 0.4 seeds per infl orescence and 76 seeds m-2, whereas mature population did not fl ower.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77772608","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
Physciaceae foliosas do Parque Estadual da Cantareira, Estado de São Paulo, Brasil. II. Gêneros Heterodermia e Polyblastidium 叶状Physciaceae来自Cantareira州立公园，sao Paulo，巴西。二。异皮属和多芽属
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772212
Michel Navarro Benatti, M. Marcelli
{"title":"Physciaceae foliosas do Parque Estadual da Cantareira, Estado de São Paulo, Brasil. II. Gêneros Heterodermia e Polyblastidium","authors":"Michel Navarro Benatti, M. Marcelli","doi":"10.21826/2446-8231201772212","DOIUrl":"https://doi.org/10.21826/2446-8231201772212","url":null,"abstract":"Genera Heterodermia and Polyblastidium . Here we present a survey of the foliose lichenized fungi of Physciaceae collected in the State Park of Serra da Cantareira during end of the 1990s and currently deposited in SP Herbarium. Samples of eight species, belonging to the genera Heterodermia Trevis . (5 spp.) and Polyblastidium Kalb (3 spp.), were found and analyzed. Descriptions, comments, illustrations, and a key of the species found are presented. Heterodermia velata Marcelli & Benatti is new to science while H. isidiophora (Nyl.) D.D. Awasthi is a new citation for Brazil.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80531354","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
Morfologia polínica de espécies epífitas de Cactaceae Juss. do Rio Grande do Sul, Brasil 仙人掌科附生植物的花粉形态。来自巴西的里约热内卢Grande do Sul
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772205
Rodrigo Rodrigues Cancelli, Ivan Cabral Menezes, P. A. Souza
{"title":"Morfologia polínica de espécies epífitas de Cactaceae Juss. do Rio Grande do Sul, Brasil","authors":"Rodrigo Rodrigues Cancelli, Ivan Cabral Menezes, P. A. Souza","doi":"10.21826/2446-8231201772205","DOIUrl":"https://doi.org/10.21826/2446-8231201772205","url":null,"abstract":"In this paper, we studied the pollen morphology of 11 species of epiphytic Cactaceae family in Rio Grande do Sul, southern Brazil. We provide descriptions, measurements, photomicrographs, as well as information on ecology and biogeography. The pollen grains are variable in size (medium, large and giant) with prolate-spheroidal to prolate forms; 3-colpate aperture ( Lepismium cruciforme (Vell.) Miq. and Rhipsalis cereuscula Haw.) and 6-colpate (remaining species); exine with tectum and small granulate texture and perforations; except for Epiphyllum phyllanthus (L.) Haw, colpi are covered by thin granulate membrane; heteromorphism in the apertures of L. houlletianum (Lem.) Barthlott, L. warmingianum (K. Schum.) Barthlott and Rhipsalis campos-portoana Loefgr was observed. Results indicate two morphological patterns in the study taxa: the fi rst (I) is related to pollen grains with 3-colpate aperture and second (II) with 6-colpate aperture","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73938055","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: 5
Perda dos cotilédones em diferentes épocas no crescimento inicial do feijoeiro 大豆早期生长不同时期子叶的损失
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772216
Allan de Marcos Lapaz, Luiz Felipe Basilio dos Santos, C. H. P. Yoshida, P. A. M. D. Figueiredo, R. S. Viana, Lucas Aparecido Manzani Lisboa
{"title":"Perda dos cotilédones em diferentes épocas no crescimento inicial do feijoeiro","authors":"Allan de Marcos Lapaz, Luiz Felipe Basilio dos Santos, C. H. P. Yoshida, P. A. M. D. Figueiredo, R. S. Viana, Lucas Aparecido Manzani Lisboa","doi":"10.21826/2446-8231201772216","DOIUrl":"https://doi.org/10.21826/2446-8231201772216","url":null,"abstract":"The objective of this work was to analyze the effect of cotyledon loss at diff erent times of initial bean growth. The experimental design was completely randomized in a factorial scheme of 2x5, seedlings with zero and one cotyledon, interacting with fi ve extraction stages: zero, one, two, four, and six days after germination, with fi ve replicates composed of three seedlings. After 15 days, the following parameters were evaluated: mean root and shoot length; mean stem diameter; leaf area; total shoot and root dry mass; phloem and xylem diameter; and thickness of abaxial and adaxial epidermis. Removing cotyledons during the initial development of the bean plant infl uenced all the parameters evaluated in this work, except the mean diameter of the stem with one cotyledon. The removal of cotyledons in the fi rst days of extractions hinders the initial development of the plant, as well as making it more susceptible to the environment.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79920574","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
Taxonomic studies of Myrcia (Myrciinae, Myrtaceae) in Brazil: morphological novelties, circumscriptions, and new records for the Amazon 巴西桃金娘属(桃金娘科，桃金娘科)的分类学研究:亚马逊河流域形态新异、界域及新记录
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772203
A. S. Rosário, J. F. Baumgratz, R. S. Secco
{"title":"Taxonomic studies of Myrcia (Myrciinae, Myrtaceae) in Brazil: morphological novelties, circumscriptions, and new records for the Amazon","authors":"A. S. Rosário, J. F. Baumgratz, R. S. Secco","doi":"10.21826/2446-8231201772203","DOIUrl":"https://doi.org/10.21826/2446-8231201772203","url":null,"abstract":"Based on recent studies on Myrtaceae in the Brazilian Amazon, we present an update of the morphological circumscription of Myrcia, including eight new occurrences of the genus in Para State, three of which represent new records for the Amazon region. Comments are provided on the diagnostic features and taxonomic affi nities of each species, their geographic distributions, and their preferred environments of occurrence. Recommendations for updating the list of Brazilian Myrtaceae species are presented.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73094235","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
Potencial alelopático de seis espécies do gênero Croton L. na germinação de alface e tomate 6种巴豆属植物对生菜和番茄萌发的化感作用潜力
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772201
G. S. D. Souza, O. H. Bonilla, B. Chaves, E. Lucena, Charles Sousa Silva
{"title":"Potencial alelopático de seis espécies do gênero Croton L. na germinação de alface e tomate","authors":"G. S. D. Souza, O. H. Bonilla, B. Chaves, E. Lucena, Charles Sousa Silva","doi":"10.21826/2446-8231201772201","DOIUrl":"https://doi.org/10.21826/2446-8231201772201","url":null,"abstract":"This study aimed to evaluate the phytotoxicity and allelopathic potential of hydrolats of Croton argyrophylloides Muell. Arg., C. blanchetianus Baill., C. jacobinensis Baill., C. nepetaefolius Kunth., C. sincorensis Mart. ex Muell. Arg. and C. zehntneri Pax. et. Hoff m. in the germination of diaspores of lettuce and tomato. There were daily observations and measurement of the standard test of germination (TSG), fi rst count (1a C) and germination speed index (GSI). The intensity of the phytotoxic activity of each species varied according to concentration, species and photoperiod. C. argyrophylloides , C. blanchetianus , and C. nepetaefolius were inhibited in all photoperiods. Some stimulating eff ects were observed for C. sincorensis and C. argyrophylloides . Nevertheless, the results of this study provide consistent indications of the allelopathic potential of tested species.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75589709","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: 5
Influence of the edge effect on a soil seed bank of a natural fragment in the Atlantic Forest 边缘效应对大西洋森林自然碎片土壤种子库的影响
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-09-29 DOI: 10.21826/2446-8231201772211
F. S. Machado, A. França, R. M. Santos, R. T. Borém, L. Guilherme
{"title":"Influence of the edge effect on a soil seed bank of a natural fragment in the Atlantic Forest","authors":"F. S. Machado, A. França, R. M. Santos, R. T. Borém, L. Guilherme","doi":"10.21826/2446-8231201772211","DOIUrl":"https://doi.org/10.21826/2446-8231201772211","url":null,"abstract":"The edge effect is defined as the change of biotic and abiotic characteristics in the first meters of a forest fragment from the edge towards its interior. In fragments formed by human activities, this change generates increased richness and abundance, as well as changes in the structure of the forest species of soil seed bank in the border region. This study demonstrates that in natural fragments of cloud forests, the abundance and richness positively influence the linear relation from the edge to interior, mainly by distances of 120 and 180 meters from the edge. This effect can be a result of new plant growth, or ‘pioneer’ occupation in gaps in the forests generated by large fallen trees.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81591220","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
Briófitas na Estação Ecológica da Universidade Federal de Minas Gerais, Brasil Briófi泰斯联邦大学生态站的巴西米纳斯吉拉斯。
IF 0.4 4区 生物学
Iheringia Serie Botanica Pub Date : 2017-07-03 DOI: 10.21826/2446-8231201772105
G. F. P. Bojacá, Laura Bubantz Fantecelle, C. A. T. Araújo, A. S. M. Silva
{"title":"Briófitas na Estação Ecológica da Universidade Federal de Minas Gerais, Brasil","authors":"G. F. P. Bojacá, Laura Bubantz Fantecelle, C. A. T. Araújo, A. S. M. Silva","doi":"10.21826/2446-8231201772105","DOIUrl":"https://doi.org/10.21826/2446-8231201772105","url":null,"abstract":"A Estacao Ecologica da Universidade Federal de Minas Gerais e uma importante unidade deconservacao urbana com vegetacao de Mata Semidecidua e Cerrado, sendo area de inumerosestudos com a fauna e flora locais. No entanto, informacoes sobre briofi tas sao completamente ausentes, o que difi culta estudos mais aprofundados sobre estas plantas. O objetivo desse estudo foi registrar as especies de briofitas presentes na Estacao Ecologica da referida Universidade, apresentar informacoes sobre sua reproducao e dados complementares sobre o micro habitat e distribuicao geografica das especies. A partir de 60 amostras de briofitas coletadas em diferentes substratos foram encontradas nove especies de hepaticas e 15 de musgos. O musgo Isopterygium byssobolax (Mull. Hal) Paris e novo registro para o estado, propagulos assexuados sao descritos pela primeira vez em Donnellia lagenifera (Mitt.) W.R. Buck e a hepatica Cylindrocolea planifolia (Steph.) R.M. Schust e novamente registrada para o estado apos 160 anos.","PeriodicalId":54998,"journal":{"name":"Iheringia Serie Botanica","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2017-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88039166","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
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