Competition for nitrogen between Australian native grasses and the introduced weed Nassella trichotoma.

Abstract:

BACKGROUND:and Aims Nassella trichotoma is an unpalatable perennial grass weed that invades disturbed native grasslands in temperate regions of south-eastern Australia. This experiment investigated whether elevated N levels, often associated with disturbance, increases the competitiveness of N. trichotoma relative to C3 and C4 native Australian grasses. METHODS:A pot experiment investigated competitive interactions between four native grasses, two C3 species (Microlaena stipoides and Austrodanthonia racemosa) and two C4 species (Themeda australis and Bothriochloa macra), and N. trichotoma at three different N levels (equivalent to 0, 60 and 120 kg ha-1) and three competing densities (zero, one and eight neighbouring plants), using an additive design. KEY RESULTS:All native grasses were competitive with N. trichotoma at low N levels, but only M. stipoides was competitive at high N. High densities of native grasses (8:1) had a major competitive effect on N. trichotoma at all N levels. The competitive ranking of native grasses, across all N levels, on N. trichotoma was: M. stipoides>A. racemosa>B. macra>T. australis. The C3 species were generally more competitive than the C4 species and C4 grasses were not inherently more productive at low N levels, in contrast to the results of other studies. CONCLUSION:To resist invasion from N. trichotoma, these native grasses need to be maintained at a high density and/or biomass. The results do not support the theory that species such as N. trichotoma, with high tissues density, are always less competitive than those of low tissue density; in this case competitiveness depended on N levels. The ability of N. trichotoma to accumulate biomass at a higher rate than these native grasses, helps to explain why it is a major weed in disturbed Australian native grasslands.

journal_name

Ann Bot

journal_title

Annals of botany

authors

Badgery WB,Kemp DR,Michalk DL,King WM

doi

10.1093/aob/mci230

keywords:

subject

Has Abstract

pub_date

2005-10-01 00:00:00

pages

799-809

issue

5

eissn

0305-7364

issn

1095-8290

pii

mci230

journal_volume

96

pub_type

杂志文章
  • The storage of green coffee (Coffea arabica): decrease of viability and changes of potential aroma precursors.

    abstract:BACKGROUND AND AIMS:When green coffee is stored for a prolonged time the coffee quality decreases distinctively. Apart from well-known 'off-notes' that arise from undesired oxidations of lipids, a typical 'flattening' of the cup quality is detectable. In order to elucidate the biological causes for this phenomenon, dif...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcm277

    authors: Selmar D,Bytof G,Knopp SE

    更新日期:2008-01-01 00:00:00

  • An invasive Mimosa in India does not adopt the symbionts of its native relatives.

    abstract:BACKGROUND AND AIMS:The large monophyletic genus Mimosa comprises approx. 500 species, most of which are native to the New World, with Central Brazil being the main centre of radiation. All Brazilian Mimosa spp. so far examined are nodulated by rhizobia in the betaproteobacterial genus Burkholderia. Approximately 10 My...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mct112

    authors: Gehlot HS,Tak N,Kaushik M,Mitra S,Chen WM,Poweleit N,Panwar D,Poonar N,Parihar R,Tak A,Sankhla IS,Ojha A,Rao SR,Simon MF,Reis Junior FB,Perigolo N,Tripathi AK,Sprent JI,Young JP,James EK,Gyaneshwar P

    更新日期:2013-07-01 00:00:00

  • On the mechanisms of nectar secretion: revisited.

    abstract:BACKGROUND AND SCOPE:Models of nectar formation and exudation in multilayered nectaries with modified stomata or permeable cuticle are evaluated. In the current symplasmic model the pre-nectar moves from terminal phloem through the symplasm into the apoplasm (cell walls and intercellular spaces) with nectar formation b...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcp302

    authors: Vassilyev AE

    更新日期:2010-03-01 00:00:00

  • The importance of barley genetics and domestication in a global perspective.

    abstract:BACKGROUND:Archaeological evidence has revealed that barley (Hordeum vulgare) is one of the oldest crops used by ancient farmers. Studies of the time and place of barley domestication may help in understanding ancient human civilization. SCOPE:The studies of domesticated genes in crops have uncovered the mechanisms wh...

    journal_title:Annals of botany

    pub_type: 历史文章,杂志文章,评审

    doi:10.1093/aob/mcm139

    authors: Pourkheirandish M,Komatsuda T

    更新日期:2007-11-01 00:00:00

  • Use or abuse of bioinformatic tools: a response to Samach.

    abstract::In a recent paper, we described for the first time the effects of fruit on the expression of putative homologues of genes involved in flowering pathways. It was our aim to provide insight into the molecular mechanisms underlying alternate bearing in citrus. However, a bioinformatics-based critique of our and other rel...

    journal_title:Annals of botany

    pub_type: 评论,杂志文章

    doi:10.1093/aob/mct020

    authors: Muñoz-Fambuena N,Mesejo C,González-Mas MC,Primo-Millo E,Agustí M,Iglesias DJ

    更新日期:2013-03-01 00:00:00

  • Evolution of exceptional species richness among lineages of fleshy-fruited Myrtaceae.

    abstract:BACKGROUND AND AIMS:The angiosperm family Myrtaceae comprises 17 tribes with more than half of the estimated 5500 species being referred to the fleshy-fruited and predominantly rainforest associated Syzygieae and Myrteae. Previous studies suggest that fleshy fruits have evolved separately in these lineages, whereas gen...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcq088

    authors: Biffin E,Lucas EJ,Craven LA,Ribeiro da Costa I,Harrington MG,Crisp MD

    更新日期:2010-07-01 00:00:00

  • Redox markers for drought-induced nodule senescence, a process occurring after drought-induced senescence of the lowest leaves in soybean (Glycine max).

    abstract:BACKGROUND AND AIMS:Water is an increasingly scarce resource that limits crop productivity in many parts of the world, and the frequency and severity of drought are predicted to increase as a result of climate change. Improving tolerance to drought stress is therefore important for maximizing future crop yields. The ai...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcv030

    authors: Marquez-Garcia B,Shaw D,Cooper JW,Karpinska B,Quain MD,Makgopa EM,Kunert K,Foyer CH

    更新日期:2015-09-01 00:00:00

  • Chromosome numbers and genome size variation in Indian species of Curcuma (Zingiberaceae).

    abstract:BACKGROUND AND AIMS:Genome size and chromosome numbers are important cytological characters that significantly influence various organismal traits. However, geographical representation of these data is seriously unbalanced, with tropical and subtropical regions being largely neglected. In the present study, an investig...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcm144

    authors: Leong-Skornicková J,Sída O,Jarolímová V,Sabu M,Fér T,Trávnícek P,Suda J

    更新日期:2007-09-01 00:00:00

  • Lower selfing rates in metallicolous populations than in non-metallicolous populations of the pseudometallophyte Noccaea caerulescens (Brassicaceae) in Southern France.

    abstract:BACKGROUND AND AIMS:The pseudometallophyte Noccaea caerulescens is an excellent model to study evolutionary processes, as it grows both on normal and on heavy-metal-rich, toxic soils. The evolution and demography of populations are critically impacted by mating system and, yet, information about the N. caerulescens mat...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcv191

    authors: Mousset M,David P,Petit C,Pouzadoux J,Hatt C,Flaven É,Ronce O,Mignot A

    更新日期:2016-03-01 00:00:00

  • Ectomycorrhizal Inocybe species associate with the mycoheterotrophic orchid Epipogium aphyllum but not its asexual propagules.

    abstract:BACKGROUND AND AIMS:Epipogium aphyllum is a Eurasian achlorophyllous, mycoheterotrophic forest orchid. Due to its rarity, it is often protected, and its biology is poorly known. The identity and pattern of colonization of fungal associates providing carbon to this orchid have not been studied previously. METHODS:Using...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcn269

    authors: Roy M,Yagame T,Yamato M,Iwase K,Heinz C,Faccio A,Bonfante P,Selosse MA

    更新日期:2009-08-01 00:00:00

  • Genetic diversity in Nothofagus alessandrii (Fagaceae), an endangered endemic tree species of the coastal maulino forest of Central Chile.

    abstract:BACKGROUND AND AIMS:The endemic tree Nothofagus alessandrii (Fagaceae) has been historically restricted to the coastal range of Region VII of central Chile, and its forests have been increasingly destroyed and fragmented since the end of the 19th century. In this study, the patterns of within- and among-population gene...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcm073

    authors: Torres-Díaz C,Ruiz E,González F,Fuentes G,Cavieres LA

    更新日期:2007-07-01 00:00:00

  • Flower-level developmental plasticity to nutrient availability in Datura stramonium: implications for the mating system.

    abstract:Background and Aims:Studies of phenotypic plasticity in plants have mainly focused on (1) the effect of environmental variation on whole-plant traits related to the number of modules rather than on (2) the phenotypic consequences of environmental variation in traits of individual modules. Since environmental and develo...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcx093

    authors: Camargo ID,Nattero J,Careaga SA,Núñez-Farfán J

    更新日期:2017-10-17 00:00:00

  • Day-night changes of energy-rich compounds in crassulacean acid metabolism (CAM) species utilizing hexose and starch.

    abstract:BACKGROUND AND AIMS:Plants with crassulacean acid metabolism (CAM) can be divided into two groups according to the major carbohydrates used for malic acid synthesis, either polysaccharide (starch) or monosaccharide (hexose). This is related to the mechanism and affects energy metabolism in the two groups. In Kalanchoë ...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mch165

    authors: Chen LS,Nose A

    更新日期:2004-09-01 00:00:00

  • Cycling of clock genes entrained to the solar rhythm enables plants to tell time: data from Arabidopsis.

    abstract:BACKGROUND AND AIMS:An endogenous rhythm synchronized to dawn cannot time photosynthesis-linked genes to peak consistently at noon since the interval between sunrise and noon changes seasonally. In this study, a solar clock model that circumvents this limitation is proposed using two daily timing references synchronize...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcv070

    authors: Yeang HY

    更新日期:2015-07-01 00:00:00

  • Effect of medium salt concentration on differentiation and maturation of somatic embryos of cassava (Manihot esculenta Crantz).

    abstract::Culture of cassava somatic embryos on media with an altered macro- and micro-nutrient salt concentration affected embryo development and germination capability. In the tests, quarter-, half-, full- or double-strength Murashige and Skoog (MS) media were compared. The maximum number of somatic embryos differentiated fro...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcf095

    authors: Groll J,Mycock DJ,Gray VM

    更新日期:2002-05-01 00:00:00

  • CRootBox: a structural-functional modelling framework for root systems.

    abstract:Background and Aims:Root architecture development determines the sites in soil where roots provide input of carbon and take up water and solutes. However, root architecture is difficult to determine experimentally when grown in opaque soil. Thus, root architecture models have been widely used and been further developed...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcx221

    authors: Schnepf A,Leitner D,Landl M,Lobet G,Mai TH,Morandage S,Sheng C,Zörner M,Vanderborght J,Vereecken H

    更新日期:2018-04-18 00:00:00

  • The mechanism of pollinator specificity between two sympatric fig varieties: a combination of olfactory signals and contact cues.

    abstract:BACKGROUND AND AIMS:Pollinator specificity facilitates reproductive isolation among plants, and mechanisms that generate specificity influence species boundaries. Long-range volatile attractants, in combination with morphological co-adaptations, are generally regarded as being responsible for maintaining extreme host s...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcs250

    authors: Wang G,Compton SG,Chen J

    更新日期:2013-02-01 00:00:00

  • No carbon limitation after lower crown loss in Pinus radiata.

    abstract:BACKGROUND AND AIMS:Biotic and abiotic stressors can cause different defoliation patterns within trees. Foliar pathogens of conifers commonly prefer older needles and infection with defoliation that progresses from the bottom crown to the top. The functional role of the lower crown of trees is a key question to address...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcaa013

    authors: Gomez-Gallego M,Williams N,Leuzinger S,Scott PM,Bader MK

    更新日期:2020-05-13 00:00:00

  • Long-term water stress leads to acclimation of drought sensitivity of photosynthetic capacity in xeric but not riparian Eucalyptus species.

    abstract:BACKGROUND AND AIMS:Experimental drought is well documented to induce a decline in photosynthetic capacity. However, if given time to acclimate to low water availability, the photosynthetic responses of plants to low soil moisture content may differ from those found in short-term experiments. This study aims to test wh...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcv161

    authors: Zhou SX,Medlyn BE,Prentice IC

    更新日期:2016-01-01 00:00:00

  • The Quaternary evolutionary history of Bristol rock cress (Arabis scabra, Brassicaceae), a Mediterranean element with an outpost in the north-western Atlantic region.

    abstract:BACKGROUND AND AIMS:Bristol rock cress is among the few plant species in the British Isles considered to have a Mediterranean-montane element. Spatiotemporal patterns of colonization of the British Isles since the last interglacial and after the Last Glacial Maximum (LGM) from mainland Europe are underexplored and have...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcaa053

    authors: Koch MA,Möbus J,Klöcker CA,Lippert S,Ruppert L,Kiefer C

    更新日期:2020-06-19 00:00:00

  • Investigating the effects of topography and clonality on genetic structuring within a large Norwegian population of Arabidopsis lyrata.

    abstract:BACKGROUND AND AIMS:The gene flow through pollen or seeds governs the extent of spatial genetic structure in plant populations. Another factor that can contribute to this pattern is clonal growth. The perennial species Arabidopsis lyrata ssp. petraea (Brassicaceae) is a self-incompatible, clonal species found in disjun...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcq102

    authors: Lundemo S,Stenøien HK,Savolainen O

    更新日期:2010-08-01 00:00:00

  • Cost of reproduction in a spring ephemeral species, Adonis ramosa (Ranunculaceae): carbon budget for seed production.

    abstract:BACKGROUND AND AIMS:Spring ephemerals have a specific life-history trait, i.e. shoot growth and sexual reproduction occur simultaneously during a short period from snowmelt to canopy closure in deciduous forests. The aim of this study is to clarify how spring ephemerals invest resources for seed production within a res...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcm131

    authors: Horibata S,Hasegawa SF,Kudo G

    更新日期:2007-09-01 00:00:00

  • Anatomical features and ultrastructure of Deschampsia antarctica (Poaceae) leaves from different growing habitats.

    abstract:BACKGROUND AND AIMS:The leaf anatomy and ultrastructure of Deschampsia antarctica (Poaceae) plants growing in three different habitats (a dry site in the Antarctic tundra, a wet site in a zone exposed to sea spray and a greenhouse) were investigated. The ultrastructure of the leaves of D. antarctica has not been studie...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mci262

    authors: Gielwanowska I,Szczuka E,Bednara J,Górecki R

    更新日期:2005-11-01 00:00:00

  • Allometric relationships to estimate seasonal above-ground vegetative and reproductive biomass of Vitis vinifera L.

    abstract::A procedure is described for obtaining allometric regression equations to estimate non-destructively and in a cost-effective manner the current year's above-ground vegetative and reproductive biomass of Vitis vinifera L. Merlot' throughout the growing season. Significant relationships were obtained over a 3-year perio...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcf059

    authors: Castelan-Estrada M,Vivin P,Gaudillère JP

    更新日期:2002-04-01 00:00:00

  • On the persistence of reproductive barriers in Eucalyptus: the bridging of mechanical barriers to zygote formation by F1 hybrids is counteracted by intrinsic post-zygotic incompatibilities.

    abstract:BACKGROUND AND AIMS:Many previous studies conclude that pre-zygotic barriers such as mechanical isolation account for most reproductive isolation between pairs of taxa. However, the inheritance and persistence of barriers such as these after the first generation of hybridization is rarely quantified, even though it is ...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcw115

    authors: Larcombe MJ,Costa E Silva J,Tilyard P,Gore P,Potts BM

    更新日期:2016-09-01 00:00:00

  • Assessment of enzyme induction and aerenchyma formation as mechanisms for flooding tolerance in Trifolium subterraneum 'Park'.

    abstract::The objective of this study was to evaluate the role of enzyme induction and aerenchyma formation in prolonged tolerance to soil flooding in a variety of underground clover (Trifolium subterraneum 'Park') previously selected for resistance. Seedlings were grown in hydroponic tanks, initially with aeration for 3 weeks ...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcf022

    authors: Aschi-Smiti S,Chaibi W,Brouquisse R,Ricard B,Saglio P

    更新日期:2003-01-01 00:00:00

  • Wind-dispersed seed deposition patterns and seedling recruitment of Artemisia halodendron in a moving sandy land.

    abstract:BACKGROUND AND AIMS:Artemisia halodendron is a native sub-shrub that occurs mainly in moving and semi-fixed sandy lands in Inner Mongolia, China. Information on the spatial patterns of wind-dispersed seed deposition and seedling recruitment of A. halodendron inhabiting moving sandy lands is very limited. The aim of thi...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mci150

    authors: Li FR,Wang T,Zhang AS,Zhao LY,Kang LF,Chen W

    更新日期:2005-07-01 00:00:00

  • Natural variation in stomatal abundance of Arabidopsis thaliana includes cryptic diversity for different developmental processes.

    abstract:BACKGROUND AND AIMS:Current understanding of stomatal development in Arabidopsis thaliana is based on mutations producing aberrant, often lethal phenotypes. The aim was to discover if naturally occurring viable phenotypes would be useful for studying stomatal development in a species that enables further molecular anal...

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mcr060

    authors: Delgado D,Alonso-Blanco C,Fenoll C,Mena M

    更新日期:2011-06-01 00:00:00

  • Exploring evolutionary theories of plant defence investment using field populations of the deadly carrot.

    abstract:BACKGROUND AND AIMS:There are a number of disparate models predicting variation in plant chemical defences between species, and within a single species over space and time. These can give conflicting predictions. Here we review a number of these theories, before assessing their power to predict the spatial-temporal var...

    journal_title:Annals of botany

    pub_type: 杂志文章,评审

    doi:10.1093/aob/mcz151

    authors: Martinez-Swatson K,Kjøller R,Cozzi F,Simonsen HT,Rønsted N,Barnes C

    更新日期:2020-04-25 00:00:00

  • Water stress-induced xylem hydraulic failure is a causal factor of tree mortality in beech and poplar.

    abstract:BACKGROUND AND AIMS:Extreme water stress episodes induce tree mortality, but the physiological mechanisms causing tree death are still poorly understood. This study tests the hypothesis that a potted tree's ability to survive extreme monotonic water stress is determined by the cavitation resistance of its xylem tissue....

    journal_title:Annals of botany

    pub_type: 杂志文章

    doi:10.1093/aob/mct204

    authors: Barigah TS,Charrier O,Douris M,Bonhomme M,Herbette S,Améglio T,Fichot R,Brignolas F,Cochard H

    更新日期:2013-11-01 00:00:00