Seed Science Research Breaking Physical Dormancy
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Specificity in Legume-Rhizobia Symbioses
International Journal of Molecular Sciences Review Specificity in Legume-Rhizobia Symbioses Mitchell Andrews * and Morag E. Andrews Faculty of Agriculture and Life Sciences, Lincoln University, PO Box 84, Lincoln 7647, New Zealand; [email protected] * Correspondence: [email protected]; Tel.: +64-3-423-0692 Academic Editors: Peter M. Gresshoff and Brett Ferguson Received: 12 February 2017; Accepted: 21 March 2017; Published: 26 March 2017 Abstract: Most species in the Leguminosae (legume family) can fix atmospheric nitrogen (N2) via symbiotic bacteria (rhizobia) in root nodules. Here, the literature on legume-rhizobia symbioses in field soils was reviewed and genotypically characterised rhizobia related to the taxonomy of the legumes from which they were isolated. The Leguminosae was divided into three sub-families, the Caesalpinioideae, Mimosoideae and Papilionoideae. Bradyrhizobium spp. were the exclusive rhizobial symbionts of species in the Caesalpinioideae, but data are limited. Generally, a range of rhizobia genera nodulated legume species across the two Mimosoideae tribes Ingeae and Mimoseae, but Mimosa spp. show specificity towards Burkholderia in central and southern Brazil, Rhizobium/Ensifer in central Mexico and Cupriavidus in southern Uruguay. These specific symbioses are likely to be at least in part related to the relative occurrence of the potential symbionts in soils of the different regions. Generally, Papilionoideae species were promiscuous in relation to rhizobial symbionts, but specificity for rhizobial genus appears to hold at the tribe level for the Fabeae (Rhizobium), the genus level for Cytisus (Bradyrhizobium), Lupinus (Bradyrhizobium) and the New Zealand native Sophora spp. (Mesorhizobium) and species level for Cicer arietinum (Mesorhizobium), Listia bainesii (Methylobacterium) and Listia angolensis (Microvirga). -
Sesbania Punicea (Cav.) Benth
A WEED REPORT from the book Weed Control in Natural Areas in the Western United States This WEED REPORT does not constitute a formal recommendation. When using herbicides always read the label, and when in doubt consult your farm advisor or county agent. This WEED REPORT is an excerpt from the book Weed Control in Natural Areas in the Western United States and is available wholesale through the UC Weed Research & Information Center (wric.ucdavis.edu) or retail through the Western Society of Weed Science (wsweedscience.org) or the California Invasive Species Council (cal-ipc.org). Sesbania punicea (Cav.) Benth. Red sesbania Family: Fabaceae Range: Not widespread in the western United States. Occurs throughout the southeast from Virginia to eastern Texas and a few localities in California. Habitat: Riparian corridors, coastal plains and disturbed sites such as roadsides, ditches, canals and areas adjacent to ornamental plantings. In regions with long, dry summers, red sesbania invades moist areas. Survives occasional freezes but not harsh winters. It is most likely to spread to wildlands adjacent to or downstream from ornamental plantings. Origin: Native to South America (Argentina, Brazil, Paraguay, and Uruguay). Introduced to the United States as an ornamental. Impacts: Red sesbania grows rapidly and forms dense stands so thick that access to riparian areas becomes difficult to impossible. It displaces native vegetation used by wildlife and contributes to bank erosion and flooding. Large infestations can decrease water flow and reduce recreational uses. Sesbania can fix nitrogen, which enables the plant to colonize and dominate areas with poor soil. Increased soil nitrogen fertility gives a competitive advantage to other non-native weeds that thrive on high nitrogen levels. -
Sesbania Punicea (Brazilian Rattlebox) Management Information
Sesbania punicea (Brazilian rattlebox) Management Information Prepared by the IUCN SSC Invasive Species Specialist Group Contents 1.0 Introduction...................................................................................................Page 1 2.0 Preventative Measures..................................................................................Page 1 3.0 Physical Control............................................................................................Page 2 4.0 Chemical Control...........................................................................................Page 2 5.0 Physical / Chemical Follow Up Techniques ................................................Page 3 6.0 Biological Control...........................................................................................Page 3 7.0 References.......................................................................................................Page 4 8.0 Appendix...........................................................................................................Page 6 1.0 Introduction Commonly known as Brazilian rattlebox, Sesbania punicea is a deciduous, leguminous shrub that grows up to 4m tall (Hoffmann & Moran, 1998). It has been widely distributed from its native range in South America as an attractive ornamental species (Hoffmann & Moran, 1991a; Csurhes & Edwards, 1998). Escapes from cultivation have led to naturalisation in some areas as in southern United States and South Africa; where it has formed dense thickets in riparian and wetland -
Mechanisms Underpinning the Onset of Seed Coat Impermeability And
www.nature.com/scientificreports OPEN Mechanisms underpinning the onset of seed coat impermeability and dormancy-break in Astragalus Received: 13 November 2018 Accepted: 24 June 2019 adsurgens Published: xx xx xxxx Ganesh K. Jaganathan1, Jiajin Li1, Matthew Biddick2, Kang Han1, Danping Song1, Yashu Yang1, Yingying Han1 & Baolin Liu1 Impermeable seed coats, i.e. physical dormancy (PY) infuence the germination ecology of plants from 18 angiosperm families. Astragalus adsurgens (Fabaceae; Papilinoidaae) is a perennial plant widespread in temperate regions that is thought to produce both permeable and impermeable seeds. Why seeds vary in the permeability of their coat, in addition to the mechanisms by which impermeable seeds break dormancy, are not completely understood. However, seeds are often consumed by herbivores; a phenomenon that might facilitate the germination of impermeable seeds. Here, we tested whether: (1) moisture content plays a signifcant role in the onset of seed coat impermeability (and therefore PY) at similar ranges reported for species from tropical ecosystems; and (2) the presence of impermeable coats ofer any benefts for seed survival when consumed by animals. We tested these hypotheses using A. adsurgens seeds collected from Inner Mongolia, China. Freshly collected seeds with a moisture content of 9.7% were permeable to water and therefore not physically dormant. However, seeds became impermeable when dried below a threshold of 6.5% moisture content. Treating impermeable seeds with hydrochloric acid efectively broke dormancy. Scanning electron microscope (SEM) revealed that HCl treated seeds had a narrow opening in the hilum and extra-hilar regions, through which water entered. Seeds with impermeable coats survived signifcantly better than permeable seeds when consumed by cows. -
Vegetation Community Monitoring at Ocmulgee National Monument, 2011
National Park Service U.S. Department of the Interior Natural Resource Stewardship and Science Vegetation Community Monitoring at Ocmulgee National Monument, 2011 Natural Resource Data Series NPS/SECN/NRDS—2014/702 ON THE COVER Duck potato (Sagittaria latifolia) at Ocmulgee National Monument. Photograph by: Sarah C. Heath, SECN Botanist. Vegetation Community Monitoring at Ocmulgee National Monument, 2011 Natural Resource Data Series NPS/SECN/NRDS—2014/702 Sarah Corbett Heath1 Michael W. Byrne2 1USDI National Park Service Southeast Coast Inventory and Monitoring Network Cumberland Island National Seashore 101 Wheeler Street Saint Marys, Georgia 31558 2USDI National Park Service Southeast Coast Inventory and Monitoring Network 135 Phoenix Road Athens, Georgia 30605 September 2014 U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Fort Collins, Colorado The National Park Service, Natural Resource Stewardship and Science office in Fort Collins, Colorado, publishes a range of reports that address natural resource topics. These reports are of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Data Series is intended for the timely release of basic data sets and data summaries. Care has been taken to assure accuracy of raw data values, but a thorough analysis and interpretation of the data has not been completed. Consequently, the initial analyses of data in this report are provisional and subject to change. All manuscripts in the series receive the appropriate level of peer review to ensure that the information is scientifically credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner. -
Simoes Kelly D.Pdf
ii iii Aos meus queridos pais, que são a minha fortaleza e que sempre me incentivaram ao longo da minha vida, com todo amor, dedico. iv AGRADECIMENTOS À Fundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP) pela bolsa concedida. À minha orientadora Dra. Márcia Regina Braga pelo incentivo e dedicada orientação, paciência, confiança e amizade conquistada ao longo dos anos de trabalho em conjunto. À Dra. Rosemeire Aparecida Bom Pessoni pela co-orientação e auxílio dado durante o exame de qualificação ao doutorado, por todo incentivo e atenção, por me ouvir sempre em todos os momentos mais difíceis. Ao Dr. Jorge M. Vivanco do Centro para Biologia da Rizosfera da Universidade Estadual do Colorado, Estados Unidos, pela co-orientação. Ao Dr. Frank Stermitz do Departamento de Química da Universidade Estadual do Colorado, Estados Unidos, pela colaboração e ensinamentos profissionais. À Dra. Jiang Du pela elucidação estrutural das substâncias isoladas neste trabalho e por todo auxílio dado no laboratório de química da Universidade Estadual do Colorado, Estados Unidos. Ao Dr. Martin Wanner do Instituto van’t Hoff de Ciências Moleculares da Universidade de Amsterdam, pelo envio de uma amostra de sesbanimida. Ao Dr. José Alberto Cavalheiro e à Dra. Luciana de Ávila Santos da Universidade Estadual Paulista Júlio de Mesquita Filho de Araraquara, pela colaboração nas análises da sesbanimida. À Dra. Elaine Cardoso Lopes pela colaboração e amizade. Ao Dr. Massuo Jorge Kato do Instituto de Química da USP. v Ao Dr. Cláudio José Barbedo da Seção de Sementes do Instituo de Botânica pelo auxílio nas análises estatísticas e pela atenção. -
UNIVERSIDADE ESTADUAL DE CAMPINAS Instituto De Biologia
UNIVERSIDADE ESTADUAL DE CAMPINAS Instituto de Biologia TIAGO PEREIRA RIBEIRO DA GLORIA COMO A VARIAÇÃO NO NÚMERO CROMOSSÔMICO PODE INDICAR RELAÇÕES EVOLUTIVAS ENTRE A CAATINGA, O CERRADO E A MATA ATLÂNTICA? CAMPINAS 2020 TIAGO PEREIRA RIBEIRO DA GLORIA COMO A VARIAÇÃO NO NÚMERO CROMOSSÔMICO PODE INDICAR RELAÇÕES EVOLUTIVAS ENTRE A CAATINGA, O CERRADO E A MATA ATLÂNTICA? Dissertação apresentada ao Instituto de Biologia da Universidade Estadual de Campinas como parte dos requisitos exigidos para a obtenção do título de Mestre em Biologia Vegetal. Orientador: Prof. Dr. Fernando Roberto Martins ESTE ARQUIVO DIGITAL CORRESPONDE À VERSÃO FINAL DA DISSERTAÇÃO/TESE DEFENDIDA PELO ALUNO TIAGO PEREIRA RIBEIRO DA GLORIA E ORIENTADA PELO PROF. DR. FERNANDO ROBERTO MARTINS. CAMPINAS 2020 Ficha catalográfica Universidade Estadual de Campinas Biblioteca do Instituto de Biologia Mara Janaina de Oliveira - CRB 8/6972 Gloria, Tiago Pereira Ribeiro da, 1988- G514c GloComo a variação no número cromossômico pode indicar relações evolutivas entre a Caatinga, o Cerrado e a Mata Atlântica? / Tiago Pereira Ribeiro da Gloria. – Campinas, SP : [s.n.], 2020. GloOrientador: Fernando Roberto Martins. GloDissertação (mestrado) – Universidade Estadual de Campinas, Instituto de Biologia. Glo1. Evolução. 2. Florestas secas. 3. Florestas tropicais. 4. Poliploide. 5. Ploidia. I. Martins, Fernando Roberto, 1949-. II. Universidade Estadual de Campinas. Instituto de Biologia. III. Título. Informações para Biblioteca Digital Título em outro idioma: How can chromosome number -
A Review of the Economic Botany of Sesbania (Leguminosae)
Coversheet This is the accepted manuscript (post-print version) of the article. Contentwise, the accepted manuscript version is identical to the final published version, but there may be differences in typography and layout. How to cite this publication Please cite the final published version: Bunma, S., Balslev, H. A Review of the Economic Botany of Sesbania (Leguminosae). Bot. Rev. 85, 185– 251 (2019). https://doi.org/10.1007/s12229-019-09205-y Publication metadata Title: A Review of the Economic Botany of Sesbania (Leguminosae) Author(s): Bunma, S., Balslev, H. Journal: The Botanical Review DOI/Link: https://doi.org/10.1007/s12229-019-09205-y Document version: Accepted manuscript (post-print) This is a post-peer-review, pre-copyedit version of an article published in The Botanical Review. The final authenticated version is available online at: https://doi.org/10.1007/s12229-019-09205-y. General Rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognize and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. -
Caesalpiniaceae) Species
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Phyton, Annales Rei Botanicae, Horn Jahr/Year: 1988 Band/Volume: 28_2 Autor(en)/Author(s): Gottsberger Gerhard, Silberbauer-Gottsberger Ilse Artikel/Article: Evolution of Flower Structures and Pollination in Neotropical Cassiinae (Caesalpiniaceae) Species. 293-320 ©Verlag Ferdinand Berger & Söhne Ges.m.b.H., Horn, Austria, download unter www.biologiezentrum.at Phyton (Austria) Vol. 28 Fasc. 2 293-320 15.12.1988 Evolution of Flower Structures and Pollination in Neotropical Cassiinae (Caesalpiniaceae) Species*) By Gerhard GOTTSBERGER and Ilse SILBERBAUER-GOTTSBERGER**) With 9 Figures Received February 18th, 1988 Key words: Caesalpiniaceae, Cassiinae, Cassia, Chamaecrista, Senna. — Flow- er evolution, pollination. - Flora of the Neotropics. - Hymenoptera. Summary GOTTSBERGER G. & SILBERBAUER-GOTTSBERGER 1.1988. Evolution of flower struc- tures and pollination in neotropical Cassiinae (Caesalpiniaceae) species. - Phyton (Austria) 28 (2): 293-320, 9 figures. - English with German summary. Poricidal anther dehiscence occurs in the majority of the species of the subtribe Cassiinae (Caesalpiniaceae); it implies a constraint for pollination through pollen- collecting female bees able to vibrate flowers. In open pollen-flowers, poricidal anthers also provide protection against pollen depletion by rainfall, as well as provide a means for more efficient and more economic pollination. The ovaries of the Cassiinae as also in the majority of the Fabales are elongated. It is shown that the longer the ovaries the more ovules they contain. The trend in the Cassiinae to approximate the position of the pollen releasing anther openings and the stigma is realized in different ways. In Cassia and many Senna species, at least some of the stamens are so long that the anther openings reach about the same level as the stigma. -
UNDERUTILIZED CULTIVARS of NATIVE TREES for NORTH and CENTRAL FLORIDA Jason A
CouncilThe Quarterly Quarterly Newsletter of the Florida Urban Forestry Council 2015 Issue Two The Council Quarterly newsletter is published quarterly by the Florida Urban Forestry Council and is intended as an educational benefit to our members. Information may be reprinted if credit is given to the author(s) and this newsletter. All pictures, articles, advertisements, and other data are in no way to be construed as an endorsement of the author, products, services, or techniques. Likewise, the statements and opinions expressed herein are those of the individual authors and do not represent the view of the Florida Urban Forestry Council or its Executive Committee. This newsletter is made possible by the generous support of the Florida Department of Agriculture and Consumer Services, Florida Forest Service, Adam H. Putnam Commissioner. IMPROVING ON NATIVES: UNDERUTILIZED CULTIVARS OF NATIVE TREES FOR NORTH AND CENTRAL FLORIDA Jason A. Smith, Associate Professor – University of Florida - School of Forest Resources and Conservation Most of us in the business of helping increase awareness and demand. Perhaps But, if that doesn’t work, feel free to contact create and maintain healthy urban forests this will get the ball rolling in changing me. in Florida recognize the urgent need to what we plant. diversify our palette of trees that are Acer saccharum x barbatum ‘Sandersville’ planted. The benefits of diversification are The following cultivars I present all (Harvest Moon® Southern sugar maple) – realized both immediately and in the future. represent selections of our native trees with Many people think red maple (Acer rubrum) We now know about the dire consequences various superior attributes. -
Exotic Invasive Plant Species of South Carolina I Ii
Exotic Invasive Plant Species of South Carolina i ii This list of Invasive Plant Pest Species of South Carolina was re- INVASIVE SPECIES CHARACTERISTICS vised by the South Carolina Exotic Pest Plant Council in October 2014. The original list was initiated by Dr. Larry Nelson of Clem- Invasive Species - any plant species that occurs outside its area of son Univeristy in 2004. origin and that has become established, can reproduce, and can spread without cultivation and causes harm. The ranking criteria used was started in 2011 and is based on crit- era from Tennessee. Each plant was ranked based off of specific Severe Threat - invasive exotic species which pose a severe threat ranking criteria. These are objective measures based on the plant’s to the composition, structure, or function of natural areas in effect on South Carolina’s native plant communities and their South Carolina. status in the landscape. This status is documented in the Early Detection and Distribution Mapping System (EDDMapS, http:// Significant Threat - invasive exotic species which are established www.eddmaps.org/) and in the S.C. Plant Atlas (http://cricket.biol. in natural areas, independently spreading, and causing significant sc.edu/acmoore/scplantatlas.html) maintained by the University damage to natural communities. of South Carolina’s A.C. Moore Herbarium and the SC Depart- ment of Natural Resources’ Heritage Trust Program. Emerging Threat - Invasive exotic species occuring in limited in- festations with major management difficulties, or widespread with The SC-EPPC List Committee Chair is Sudie Daves Thomas, minor management difficulties. Wildlife Biologist, Natural Resources Conservation Service; to see a full list of contributers for the 2014 edition please vist http:// www.se-eppc.org/southcarolina/. -
`` Informativo Abrates´´ Brazilian Association of Seeds Technology
ISSN 0103-667X Volume 21, nº 1 April, 2011 `` INFORMATIVO ABRATES´´ BRAZILIAN ASSOCIATION OF SEEDS TECHNOLOGY Special Issue 10th CONFERENCE OF THE InternationaL SOCIETY FOR SEED SCIENCE April 10th to 15th, 2011 - Costa do Sauípe - BA President 1st Vice Event Manager Francisco Carlos Krzyzanowski Antonio Laudares de Farias (EMBRAPA /SNT) 1st Vice President 2nd Vice Event Manager José de Barros França Neto Gilda Pizzolante Pádua (EMBRAPA) 2nd Vice President Fiscal Advice Norimar Dávila Denardini Titulars Roberval Daiton Vieira (UNESP) Financial Director Julio Marcos Filho (ESALQ/USP) Ademir Assis Henning Ivo Marcos Carraro (COODETEC) Vice Financial Director Substitutes Alberto Sérgio do Rego Barros (IAPAR) Silmar Peske (UFPEL) Alessandro Lucca Braccini (UEM) Technical Affairs Diretor Sebastião Medeiros Filho (UFC) Maria Laene Moreira de Carvalho (UFLA) Vice Technical Affairs Diretor Editors of this Issue Denise Cunha Fernandes Santos Dias (UFV) ``Informativo da ABRATES´´ Maria Laene Moreira de Carvalho (UFLA) Event Manager Renato Delmondez de Castro ( UFBA) Maria Selma (APSEMG) Francisco Carlos Krzyanowski (EMBRAPA SOJA) Informativo vol.21, nº.1, 2011 ABRATES General Information The “Informativo ABRATES” is a quadrimestral publication of the Brazilian Association of Seeds Technology. It publishes technical articles of pratical character wich will effectively contribute for the technological development of seed industry. The contents of the articles are of entire responsability of the authors Printing 450 copies Layout Claudinéia Sussai