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Effect of priming with gibberellic acid on acorn germination and growth of plants of Quercus robur and Q. rubra (Fagaceae). UKRAINIAN BOTANICAL JOURNAL 2022. [DOI: 10.15407/ukrbotj79.04.254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The effect of pre-sowing priming with gibberellic acid (GA3) solution (50 mg/L) on acorn germination and growth characteristics of 47-day-old plants of Quercus robur and Q. rubra was studied under laboratory conditions. The priming effect varied depending on the oak species and development phase of the plants. After priming, 86% of Q. robur acorns germinated that exceeded the control by 25%, while the number of sprouted acorns of Q. rubra was at the control level and amounted to 85%. The 47-day-old plants of Q. robur were divided into three groups: (1) sprouted acorns with cracked pericarp and main root; (2) seedlings with formed epicotyl and apical bud; (3) seedlings with unopened true leaves of juvenile type. The plants of Q. rubra were divided into two groups: (1) seedlings with formed epicotyl and apical bud; (2) seedlings with open true leaves. In plants of Q. robur, priming caused decrease of biomass in cotyledons, while no visible changes were found for those of Q. rubra. An increase in growth characteristics, fresh and dry biomass accumulation was noted for all Q. robur plants whereas thickening of shoots was observed only in seedlings of the second group. Instead, hormone treatment of acorns of Q. rubra led to inhibition of growth processes in plants of both groups. In general, priming with GA3 solution enhanced germination of acorns and stimulated growth of Q. robur plants and, conversely, slowed the growth of Q. rubra plants. Exogenous GA3 did not eliminate the syndrome of unfriendly seedlings of the studied oak species, but improved the viability of acorns and increased the number of seedlings/shoots.
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Steinmann VW, Ferrucci MS, Maya-Lastra CA. Phylogenetics of Serjania (Sapindaceae-Paullinieae), with emphasis on fruit evolution and the description of a new species from Michoacán, Mexico. SYST BIODIVERS 2022. [DOI: 10.1080/14772000.2022.2030425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Victor W. Steinmann
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Del. Sta. Rosa Jáuregui, Querétaro, 76230, Querétaro, Mexico
| | - MaríA S. Ferrucci
- Instituto de Botánica del Nordeste (UNNE-CONICET), Casilla de Correo 209, Corrientes, 3400, Argentina
| | - Carlos A. Maya-Lastra
- Department of Ecology, Evolution, and Environmental Biology, Columbia University, 1200 Amsterdam Ave, New York, NY 10027, USA
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Bellini G, Erfmeier A, Schrieber K. No Support for the Neolithic Plant Invasion Hypothesis: Invasive Species From Eurasia Do Not Perform Better Under Agropastoral Disturbance in Early Life Stages Than Invaders From Other Continents. FRONTIERS IN PLANT SCIENCE 2022; 13:801750. [PMID: 35222466 PMCID: PMC8874271 DOI: 10.3389/fpls.2022.801750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Pre-adaptation to disturbance is an important driver of biological invasions in human-altered ecosystems. Agropastoralism is one of the oldest forms of landscape management. It surged 12,000 years ago in Western Asia and it was then imported to Europe starting 8,000 years ago. The Neolithic Plant Invasion hypothesis suggests that Eurasian plants succeed at invading agroecosystems worldwide thanks to their adaptation to agropastoralism, which derives from these species' long co-evolution with such practice. Plant species from Western Asia are predicted to have the highest degree of adaptation to agropastoralism, since they have co-evolved with such practice for several millennia more than European plants, and non-Eurasian species should be poorly adapted due to their relatively short exposure. However, this Eurocentric perspective largely ignores that several other cultures around the world independently developed and implemented agropastoralism through history, which challenges this hypothesized superior adaptation of Eurasian species. Here, we tested whether the early-life performance of invasive plants under disturbance depends on their geographical origin and the associated assumed exposure time to agropastoralism. We selected 30 species divided into three groups: exposure long, native to Western Asia; exposure medium, native to Central Europe; exposure short, native to America. Three soil disturbance treatments (control/compaction/tilling) combined with two space occupancy levels (available/occupied) were applied to monospecific experimental units (n = 900), each containing 50 seeds. We predicted that Eurasian species would benefit more from disturbance in terms of germination and seedling performance than species with shorter assumed exposure to agropastoralism, and that this effect would be stronger when space is occupied. Contrary to these expectations, all species groups profited equally from disturbance, while non-Eurasian species were most hampered by space occupancy. For germination success and speed, exposure long species had higher values than exposure short species, regardless of the disturbance treatment. These results do not support that Eurasian species possess a higher adaptation to agropastoralism, but rather that non-Eurasian species can cope just as well with the associated disturbances. We discuss how future experiments that address the complex relationships between species interactions, plant life-phases and the quality of disturbance can help to understand the role of land-use history in plant invasion success.
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Affiliation(s)
- Ginevra Bellini
- Department of Geobotany, Institute for Ecosystem Research, Kiel University, Kiel, Germany
- Cluster of Excellence ROOTS, Kiel University, Kiel, Germany
| | - Alexandra Erfmeier
- Department of Geobotany, Institute for Ecosystem Research, Kiel University, Kiel, Germany
- Cluster of Excellence ROOTS, Kiel University, Kiel, Germany
| | - Karin Schrieber
- Department of Geobotany, Institute for Ecosystem Research, Kiel University, Kiel, Germany
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Mašková T, Herben T. Interspecific differences in maternal support in herbaceous plants: CNP contents in seeds varies to match expected nutrient limitation of seedlings. OIKOS 2021. [DOI: 10.1111/oik.08186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Tereza Mašková
- Dept of Botany, Faculty of Science, Charles Univ. in Prague Prague Czech Republic
| | - Tomáš Herben
- Dept of Botany, Faculty of Science, Charles Univ. in Prague Prague Czech Republic
- Inst. of Botany, Academy of Sciences of the Czech Republic Průhonice Czech Republic
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van der Sande MT, Bruelheide H, Dawson W, Dengler J, Essl F, Field R, Haider S, van Kleunen M, Kreft H, Pagel J, Pergl J, Purschke O, Pyšek P, Weigelt P, Winter M, Attorre F, Aubin I, Bergmeier E, Chytrý M, Dainese M, De Sanctis M, Fagundez J, Golub V, Guerin GR, Gutiérrez AG, Jandt U, Jansen F, Jiménez‐Alfaro B, Kattge J, Kearsley E, Klotz S, Kramer K, Moretti M, Niinemets Ü, Peet RK, Penuelas J, Petřík P, Reich PB, Sandel B, Schmidt M, Sibikova M, Violle C, Whitfeld TJS, Wohlgemuth T, Knight TM. Similar factors underlie tree abundance in forests in native and alien ranges. GLOBAL ECOLOGY AND BIOGEOGRAPHY : A JOURNAL OF MACROECOLOGY 2020; 29:281-294. [PMID: 32063745 PMCID: PMC7006795 DOI: 10.1111/geb.13027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 09/25/2019] [Accepted: 10/08/2019] [Indexed: 05/08/2023]
Abstract
AIM Alien plant species can cause severe ecological and economic problems, and therefore attract a lot of research interest in biogeography and related fields. To identify potential future invasive species, we need to better understand the mechanisms underlying the abundances of invasive tree species in their new ranges, and whether these mechanisms differ between their native and alien ranges. Here, we test two hypotheses: that greater relative abundance is promoted by (a) functional difference from locally co-occurring trees, and (b) higher values than locally co-occurring trees for traits linked to competitive ability. LOCATION Global. TIME PERIOD Recent. MAJOR TAXA STUDIED Trees. METHODS We combined three global plant databases: sPlot vegetation-plot database, TRY plant trait database and Global Naturalized Alien Flora (GloNAF) database. We used a hierarchical Bayesian linear regression model to assess the factors associated with variation in local abundance, and how these relationships vary between native and alien ranges and depend on species' traits. RESULTS In both ranges, species reach highest abundance if they are functionally similar to co-occurring species, yet are taller and have higher seed mass and wood density than co-occurring species. MAIN CONCLUSIONS Our results suggest that light limitation leads to strong environmental and biotic filtering, and that it is advantageous to be taller and have denser wood. The striking similarities in abundance between native and alien ranges imply that information from tree species' native ranges can be used to predict in which habitats introduced species may become dominant.
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Affiliation(s)
- Masha T. van der Sande
- Department of Community EcologyHelmholtz Centre for Environmental Research–UFZHalle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
- Department of Biological SciencesFlorida Institute of TechnologyMelbourneFlorida
- Institute for Biodiversity & Ecosystem DynamicsUniversity of AmsterdamAmsterdamThe Netherlands
- Forest Ecology and Forest Management GroupWageningen University & ResearchWageningenThe Netherlands
| | - Helge Bruelheide
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
- Martin Luther University Halle‐WittenbergInstitute of Biology/Geobotany and Botanical GardenHalle (Saale)Germany
| | - Wayne Dawson
- Department of BiosciencesDurham UniversityDurhamUnited Kingdom
| | - Jürgen Dengler
- Plant Ecology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of BayreuthBayreuthGermany
- Vegetation EcologyInstitute of Environment and Natural Resources (IUNR), Zurich University of Applied Sciences (ZHAW)Switzerland
| | - Franz Essl
- Division of Conservation Biology, Vegetation Ecology and Landscape Ecology, Department of Botany and Biodiversity ResearchUniversity of ViennaViennaAustria
| | - Richard Field
- School of GeographyUniversity of NottinghamNottinghamUnited Kingdom
| | - Sylvia Haider
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
- Martin Luther University Halle‐WittenbergInstitute of Biology/Geobotany and Botanical GardenHalle (Saale)Germany
| | - Mark van Kleunen
- Ecology, Department of BiologyUniversity of KonstanzKonstanzGermany
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhouChina
| | - Holger Kreft
- Biodiversity, Macroecology & BiogeographyUniversity of GoettingenGöttingenGermany
- Centre of Biodiversity and Sustainable Land Use (CBL), University of GoettingenGöttingenGermany
| | - Joern Pagel
- Landscape & Plant EcologyUniversity of HohenheimStuttgartGermany
| | - Jan Pergl
- Institute of BotanyCzech Academy of SciencesPrůhoniceCzech Republic
| | - Oliver Purschke
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
- Martin Luther University Halle‐WittenbergInstitute of Biology/Geobotany and Botanical GardenHalle (Saale)Germany
| | - Petr Pyšek
- Institute of BotanyCzech Academy of SciencesPrůhoniceCzech Republic
- Faculty of Science, Department of EcologyCharles UniversityPragueCzech Republic
| | - Patrick Weigelt
- Biodiversity, Macroecology & BiogeographyUniversity of GoettingenGöttingenGermany
| | - Marten Winter
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
| | - Fabio Attorre
- Department of Environmental BiologyUniversity Sapienza of RomeRomeItaly
| | - Isabelle Aubin
- Great Lakes Forestry Centre, Canadian Forest ServiceNatural Resources CanadaSault Ste MarieOntarioCanada
| | - Erwin Bergmeier
- Vegetation & Phytodiversity AnalysisUniversity of GöttingenGöttingenGermany
| | - Milan Chytrý
- Department of Botany and ZoologyMasaryk UniversityBrnoCzech Republic
| | - Matteo Dainese
- Department of Animal Ecology and Tropical Biology, BiocenterUniversity of WürzburgWürzburgGermany
- Institute for Alpine EnvironmentEURAC ResearchBolzanoItaly
| | | | - Jaime Fagundez
- Faculty of Science, Department of BiologyUniversity of A CoruñaCoruñaSpain
| | - Valentin Golub
- Institute of Ecology of the Volga River BasinRussian Academy of SciencesTolyattiRussia
| | - Greg R. Guerin
- Terrestrial Ecosystem Research Network, School of Biological SciencesThe University of AdelaideAdelaideSouth AustraliaAustralia
| | - Alvaro G. Gutiérrez
- Departamento de Ciencias Ambientales y Recursos Naturales Renovables, Facultad de Ciencias AgronómicasUniversidad de ChileSantiagoChile
| | - Ute Jandt
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
- Martin Luther University Halle‐WittenbergInstitute of Biology/Geobotany and Botanical GardenHalle (Saale)Germany
| | - Florian Jansen
- Faculty of Agricultural and Environmental ScienceUniversity of RostockRostockGermany
| | | | - Jens Kattge
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
- Max Planck Institute for BiogeochemistryJenaGermany
| | - Elizabeth Kearsley
- Computational and Applied Vegetation Ecology (CAVElab)Ghent UniversityGhentBelgium
| | - Stefan Klotz
- Department of Community EcologyHelmholtz Centre for Environmental Research–UFZHalle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
| | - Koen Kramer
- Forest Ecology and Forest Management GroupWageningen University & ResearchWageningenThe Netherlands
- Vegetation, Forest and Landscape Ecology, Wageningen Environmental Research (Alterra)Wageningen University and ResearchWageningenThe Netherlands
| | - Marco Moretti
- Swiss Federal Research Institute WSL, Biodiversity and Conservation BiologyBirmensdorfSwitzerland
| | - Ülo Niinemets
- Chair of Crop Science and Plant BiologyEstonian University of Life SciencesTartuEstonia
- Estonian Academy of SciencesTallinnEstonia
| | - Robert K. Peet
- Department of BiologyUniversity of North CarolinaChapel HillNorth Carolina
| | - Josep Penuelas
- CSIC, Global Ecology Unit CREAF‐CSIC‐UABBarcelonaSpain
- CREAFBarcelonaSpain
| | - Petr Petřík
- Institute of BotanyCzech Academy of SciencesPrůhoniceCzech Republic
| | - Peter B. Reich
- Department of Forest ResourcesUniversity of MinnesotaSt. PaulMinnesota
- Hawkesbury Institute for the EnvironmentWestern Sydney UniversityPenrith South DCNew South WalesAustralia
| | - Brody Sandel
- Department of BiologySanta Clara UniversitySanta ClaraCalifornia
| | - Marco Schmidt
- Data and Modelling CentreSenckenberg Biodiversity and Climate Research Centre (SBiK‐F)Frankfurt am MainGermany
- Scientific ServicePalmengarten der Stadt FrankfurtFrankfurt am MainGermany
| | - Maria Sibikova
- Institute of Botany, Plant Science and Biodiversity CenterSlovak Academy of SciencesBratislavaSlovakia
| | - Cyrille Violle
- Centre d’Ecologie Fonctionnelle et Evolutive (UMR 5175)CNRS, Université Paul Valéry Montpellier, EPHE, Univ MontpellierMontpellierFrance
| | | | - Thomas Wohlgemuth
- Swiss Federal Institute for Forest, Snow and Landscape Research WSLBirmensdorfSwitzerland
| | - Tiffany M. Knight
- Department of Community EcologyHelmholtz Centre for Environmental Research–UFZHalle (Saale)Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐LeipzigLeipzigGermany
- Martin Luther University Halle‐WittenbergInstitute of Biology/Geobotany and Botanical GardenHalle (Saale)Germany
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Salazar-Tortosa D, Castro J, Saladin B, Zimmermann NE, Rubio De Casas R. Arid environments select for larger seeds in pines (Pinus spp.). Evol Ecol 2019. [DOI: 10.1007/s10682-019-10016-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Wang H, Lai X, Zhang Y, Chen H. Advantages of Small-Seeded Species in Forests: Win-Win for Temporal and Spatial Dispersal among Seeds in Rhododendron. POLISH JOURNAL OF ECOLOGY 2019. [DOI: 10.3161/15052249pje2019.67.1.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Haiyang Wang
- Department of Landscape, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China
| | - Xiaohong Lai
- Department of Landscape, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China
| | - Yanru Zhang
- Department of Landscape, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China
| | - Hong Chen
- Department of Botany, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China
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Hewitt N, Larocque GR, Greene D, Kellman M. A model of hardwood tree colonization among forest fragments: predicting migration across human-dominated landscapes. ECOSCIENCE 2019. [DOI: 10.1080/11956860.2018.1515596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Nina Hewitt
- Geography Department, University of British Columbia, Vancouver, BC, Canada
| | - Guy R. Larocque
- Canadian Forest Service Natural Resources Canada, Laurentian Forestry Centre, Quebec City, QC, Canada
| | - David Greene
- Department of Forestry and Wildland Resources, Humboldt State University, Arcata, CA, USA
| | - Martin Kellman
- Department of Geography, York University, Toronto, Canada
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Krishnadas M, Beckman NG, Zuluaga JCP, Zhu Y, Whitacre J, Wenzel JW, Queenborough SA, Comita LS. Environment and past land use together predict functional diversity in a temperate forest. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2018; 28:2142-2152. [PMID: 30198191 DOI: 10.1002/eap.1802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/27/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Abstract
Environment and human land use both shape forest composition. Abiotic conditions sift tree species from a regional pool via functional traits that influence species' suitability to the local environment. In addition, human land use can modify species distributions and change functional diversity of forests. However, it is unclear how environment and land use simultaneously shape functional diversity of tree communities. Land-use legacies are especially prominent in temperate forest landscapes that have been extensively modified by humans in the last few centuries. Across a 900-ha temperate deciduous forest in the northeastern United States, comprising a mosaic of different-aged stands due to past human land use, we used four key functional traits-maximum height, rooting depth, wood density, and seed mass-to examine how multiple environmental and land-use variables influenced species distributions and functional diversity. We sampled ~40,000 trees >8 cm DBH within 485 plots totaling 137 ha. Species within plots were more functionally similar than expected by chance when we estimated functional diversity using all traits together (multi-trait), and to a lesser degree, with each trait separately. Multi-trait functional diversity was most strongly correlated with distance from the perennial stream, elevation, slope, and forest age. Environmental and land-use predictors varied in their correlation with functional diversities of the four individual traits. Landscape-wide change in abundances of individual species also correlated with both environment and land-use variables, but magnitudes of trait-environment interactions were generally stronger than trait interactions with land use. These findings can be applied for restoration and assisted regeneration of human-modified temperate forests by using traits to predict which tree species would establish well in relation to land-use history, topography, and soil conditions.
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Affiliation(s)
- Meghna Krishnadas
- School of Forestry and Environmental Studies, Yale University, 195 Prospect Street, New Haven, Connecticut, 06511, USA
| | - Noelle G Beckman
- Department of Biology and the Ecology Center, Utah State University, 5305 Old Main Hill, Logan, Utah, 84322, USA
| | - Juan Carlos Peñagos Zuluaga
- School of Forestry and Environmental Studies, Yale University, 195 Prospect Street, New Haven, Connecticut, 06511, USA
| | - Yan Zhu
- School of Forestry and Environmental Studies, Yale University, 195 Prospect Street, New Haven, Connecticut, 06511, USA
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, 20 Nanxincun, Xiangshan, Beijing, 100093, China
| | - James Whitacre
- Powdermill Nature Reserve, Carnegie Museum of Natural History, 1847 Route 381, Rector, Pennsylvania, 15677, USA
| | - John W Wenzel
- Powdermill Nature Reserve, Carnegie Museum of Natural History, 1847 Route 381, Rector, Pennsylvania, 15677, USA
| | - Simon A Queenborough
- School of Forestry and Environmental Studies, Yale University, 195 Prospect Street, New Haven, Connecticut, 06511, USA
| | - Liza S Comita
- School of Forestry and Environmental Studies, Yale University, 195 Prospect Street, New Haven, Connecticut, 06511, USA
- Smithsonian Tropical Research Institute, Box 0843-03092, Balboa, Ancón, Panama
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Lönnberg K, Eriksson O. Seed size and recruitment patterns in a gradient from grassland to forest. ECOSCIENCE 2015. [DOI: 10.2980/19-2-3521] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Dyer AR, Brown CS, Espeland EK, McKay JK, Meimberg H, Rice KJ. The role of adaptive trans-generational plasticity in biological invasions of plants. Evol Appl 2015; 3:179-92. [PMID: 25567918 PMCID: PMC3352481 DOI: 10.1111/j.1752-4571.2010.00118.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Accepted: 12/21/2009] [Indexed: 11/30/2022] Open
Abstract
High-impact biological invasions often involve establishment and spread in disturbed, high-resource patches followed by establishment and spread in biotically or abiotically stressful areas. Evolutionary change may be required for the second phase of invasion (establishment and spread in stressful areas) to occur. When species have low genetic diversity and short selection history, within-generation phenotypic plasticity is often cited as the mechanism through which spread across multiple habitat types can occur. We show that trans-generational plasticity (TGP) can result in pre-adapted progeny that exhibit traits associated with increased fitness both in high-resource patches and in stressful conditions. In the invasive sedge, Cyperus esculentus, maternal plants growing in nutrient-poor patches can place disproportional number of propagules into nutrient-rich patches. Using the invasive annual grass, Aegilops triuncialis, we show that maternal response to soil conditions can confer greater stress tolerance in seedlings in the form of greater photosynthetic efficiency. We also show TGP for a phenological shift in a low resource environment that results in greater stress tolerance in progeny. These lines of evidence suggest that the maternal environment can have profound effects on offspring success and that TGP may play a significant role in some plant invasions.
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Affiliation(s)
- Andrew R Dyer
- Department of Biology & Geology, University of South Carolina Aiken Aiken, SC, USA
| | - Cynthia S Brown
- Department of Bioagricultural Sciences and Pest Management, Colorado State University Fort Collins, CO, USA
| | | | - John K McKay
- Department of Bioagricultural Sciences and Pest Management, Colorado State University Fort Collins, CO, USA
| | - Harald Meimberg
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos Campus Agrário de Vairão, University of Porto, Vairão, Portugal
| | - Kevin J Rice
- Department of Plant Sciences and Center for Population Biology, University of California-Davis Davis, CA, USA
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Meng LH, Wang Y, Luo J, Yang YP, Duan YW. The Trade-Off and Altitudinal Variations in Seed Weight-Number inSinopodophyllum hexandrum(Royle) Ying (Berberidaceae) Populations from the Hengduan Mountains. POLISH JOURNAL OF ECOLOGY 2014. [DOI: 10.3161/104.062.0303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kostrakiewicz-Gierałt K. The Effect of Neighbouring Plant Height, Disturbance Level and Gap Size on Spontaneous Recruitment of Large-Seeded And Small-Seeded Species in Molinietum caeruleae Meadows. POLISH JOURNAL OF ECOLOGY 2014. [DOI: 10.3161/104.062.0209] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Kinga Kostrakiewicz-Gierałt
- Department of Plant Ecology, Institute of Botany, Jagiellonian University, Lubicz str. 46, 31–512 Krakow, Poland, e-mail:
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Norros V, Rannik Ü, Hussein T, Petäjä T, Vesala T, Ovaskainen O. Do small spores disperse further than large spores? Ecology 2014; 95:1612-21. [DOI: 10.1890/13-0877.1] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Lönnberg K, Eriksson O. Relationships between intra-specific variation in seed size and recruitment in four species in two contrasting habitats. PLANT BIOLOGY (STUTTGART, GERMANY) 2013; 15:601-606. [PMID: 23066651 DOI: 10.1111/j.1438-8677.2012.00676.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 08/23/2012] [Indexed: 06/01/2023]
Abstract
Large seeds contain more stored resources, and seedlings germinating from large seeds generally cope better with environmental stresses such as shading, competition and thick litter layers, than seedlings germinating from small seeds. A pattern with small-seeded species being associated with open habitats and large-seeded species being associated with closed (shaded) habitats has been suggested and supported by comparative studies. However, few studies have assessed the intra-specific relationship between seed size and recruitment, comparing plant communities differing in canopy cover. Here, seeds from four plant species commonly occurring in ecotones between open and closed habitats (Convallaria majalis, Frangula alnus, Prunus padus and Prunus spinosa) were weighed and sown individually (3200 seeds per species) in open and closed-canopy sites, and seedling emergence and survival recorded over 3 years. Our results show a generally positive, albeit weak, relationship between seed size and recruitment. In only one of the species, C. majalis, was there an association between closed canopy habitat and a positive seed size effect on recruitment. We conclude that there is a weak selection gradient favouring larger seeds, but that this selection gradient is not clearly related to habitat.
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Affiliation(s)
- K Lönnberg
- Department of Botany, Stockholm University, Stockholm, Sweden.
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Volis S, Bohrer G. Joint evolution of seed traits along an aridity gradient: seed size and dormancy are not two substitutable evolutionary traits in temporally heterogeneous environment. THE NEW PHYTOLOGIST 2013; 197:655-667. [PMID: 23171296 DOI: 10.1111/nph.12024] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Accepted: 09/29/2012] [Indexed: 05/12/2023]
Abstract
Seed size and dormancy are reproductive traits that interact as adaptations to environmental conditions. Here, we explore the evolution of these traits in environments that differ in overall mean favorability and in the extent of temporal predictability. Our model simulates a population of annual plants living in a range of environments that differ in aridity, namely mean annual precipitation and inter-annual variation of this mean precipitation. The optimal fitness curve is investigated assuming density dependence, three alternative hypothetical relationships between seed mass and seed survival in the soil (negative, positive, and independent of mass), and three alternative relationships between survival in soil and precipitation (strong and intermediate negative relationships, and no relationship). Our results show that seed size and dormancy are not two substitutable evolutionary traits; that specific combinations of these two traits are selected in environments that differ in favorability and temporal predictability; that a certain degree of seed dormancy is advantageous not only in temporally unpredictable environments but also in temporally predictable environments with high competition; and that more than one combination of seed size and dormancy (defined in terms of germination fraction) can be optimal, even in spatially homogeneous environments, potentially allowing selection for more variation in these traits within and among species.
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Affiliation(s)
- Sergei Volis
- Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Gil Bohrer
- Department of Civil, Environmental & Geodetic Engineering, The Ohio State University, Columbus, OH, 43210, USA
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Abstract
The evolution of the seed represents a remarkable life-history transition for photosynthetic organisms. Here, we review the recent literature and historical understanding of how and why seeds evolved. Answering the 'how' question involves a detailed understanding of the developmental morphology and anatomy of seeds, as well as the genetic programs that determine seed size. We complement this with a special emphasis on the evolution of dormancy, the characteristic of seeds that allows for long 'distance' time travel. Answering the 'why' question involves proposed hypotheses of how natural selection has operated to favor the seed life-history phenomenon. The recent flurry of research describing the comparative biology of seeds is discussed. The review will be divided into sections dealing with: (1) the development and anatomy of seeds; (2) the endosperm; (3) dormancy; (4) early seed-like structures and the transition to seeds; and (5) the evolution of seed size (mass). In many cases, a special distinction is made between angiosperm and gymnosperm seeds. Finally, we make some recommendations for future research in seed biology.
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Affiliation(s)
- Ada Linkies
- Botany/Plant Physiology, Institute for Biology II, Faculty of Biology, University of Freiburg, Schänzlestr. 1, D-79104 Freiburg, Germany (http://www.seedbiology.de)
| | - Kai Graeber
- Botany/Plant Physiology, Institute for Biology II, Faculty of Biology, University of Freiburg, Schänzlestr. 1, D-79104 Freiburg, Germany (http://www.seedbiology.de)
| | - Charles Knight
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA 93401, USA
| | - Gerhard Leubner-Metzger
- Botany/Plant Physiology, Institute for Biology II, Faculty of Biology, University of Freiburg, Schänzlestr. 1, D-79104 Freiburg, Germany (http://www.seedbiology.de)
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