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Protocols in ecological and environmental plant physiology

 
 

Australian Journal of Botany is an international journal for the publication of original research and reviews in plant science with relevance to Southern Hemisphere ecosystems including ecology and ecophysiology, conservation biology and biodiversity, forest biology and management, cell and molecular biology, palaeobotany, reproductive biology and genetics, mycology and pathology and structure and development. More...

Editor-in-Chief: Dr Dick Williams

 
 
 

blank image Australian Journal of Botany
Volume 62 Number 4 2014

 
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Sustained impacts of a hiking trail on changing Windswept Feldmark vegetation in the Australian Alps 
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Mark Ballantyne , Catherine M. Pickering , Keith L. McDougall and Genevieve T. Wright
pp. 263-275

Trampling from recreational trail use can be a threat to plants especially in sensitive alpine communities where effects may persist over time. We re-assessed the impacts of trampling on a rare Windswept Feldmark community following initial sampling 10 years prior and found that trampling continues to cause alterations in species abundance and disrupt shrub succession in addition to broader compositional changes occurring as a result of local climatic trends. It is important to understand that trampling impacts do not often occur independently and management should seek to minimise trampling damage in favour of increasing resilience to larger-scale impacts such as climate change.

 
  
 

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Plant-level fecundity and andromonoecy in three common (Melaleuca styphelioides, M. thymifolia, M. nodosa) and one rare (M. deanei) Melaleuca (Myrtaceae) species of the Sydney region 
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Alison Hewitt , Paul Holford , Adrian Renshaw , Anthony Haigh and E. Charles Morris
pp. 276-285

This paper reports fecundity and floral morphs from four Australian eastern-coast Melaleuca species, including the vulnerable species M. deanei. Measures reported include fruit and seed loads per plant, fruit set, ovule numbers and seed : ovule ratios under natural conditions. Andromonoecy at low rates is reported for M. deanei and M. thymifolia. Results suggest that significantly lower seed loads per population within the smaller populations of M. deanei reflect a lower seasonal incidence of flowering and lower proportions of flowering plants per population, rather than any limitations in pollination, fruit/seed set or predation.

 
  
 

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Population structure, seed loads and flowering phenology in three common (Melaleuca styphelioides, M. thymifolia, M. nodosa) and one rare (M. deanei) Melaleuca (Myrtaceae) species of the Sydney region 
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Alison Hewitt , Paul Holford , Adrian Renshaw , Anthony Haigh and E. Charles Morris
pp. 286-304

The paper reports reproductive and structural attributes at the population level for three common species of Melaleuca and from large and small populations of the rare congener Melaeuca deanei. Within relatively smaller populations, M. deanei exhibitted a lower plant density, a lower incidence of flowering, significantly lower proportions of fruiting plants, fewer viable seeds per square metre and limited recruitment.

 
  
 

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Seed storage behaviour of 101 woody species from the tropical rainforest of southern China: a test of the seed-coat ratio–seed mass (SCR–SM) model for determination of desiccation sensitivity 
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Qin-ying Lan , Ke Xia , Xiao-feng Wang , Jun-wei Liu , Jin Zhao and Yun-hong Tan
pp. 305-311

Information for seed desiccation-sensitivity is crucial for seed conservation of species from the Xishuangbanna tropical rainforest, the greatest biodiversity hotspot in China. Seed-desiccation sensitivity of 101 woody species from the Xishuangbanna tropical forest were analysed using the SCR–SM model. The model successfully predicted seed desiccation-sensitivity of 88% species whose storage behaviour was certain and indicated that ~50% of the species in Xishuangbanna are likely to have desiccation-sensitive seeds.

 
  
 

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Monodominance at the rainforest edge: case study of Codia mackeeana (Cunoniaceae) in New Caledonia 
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Thomas Ibanez and Philippe Birnbaum
pp. 312-321

Monodominance is unexpected in tropical forests, which usually exhibit rich and diverse flora. Hence, monodominant forests raise many questions, and one of the basic issues for managers is to know whether monodominance is a non-persistent step towards mixed forest or a persistent step, which prevents the recovery of a more diverse flora. Here, we present a novel case of monodominance in New Caledonia, with Codia mackeeana (Cunoniaceae) being involved in the secondary succession from anthropogenic savannas toward mixed forest.

 
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Where they are, why they are there, and where they are going: using niche models to assess impacts of disturbance on the distribution of three endemic rare subtropical rainforest trees of Macadamia (Proteaceae) species 
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M. Powell , A. Accad and A. Shapcott
pp. 322-334

Macadamias are native to Australia and are grown worldwide for their edible nuts. However, persistence of their wild relatives is uncertain because of its limited ability to respond to the multiple challenges it faces. Our results provide insight into the patterns and processes that are key to conservation of Macadamia and have wider applicability in conservation of its rainforest habitat.

 
  
 

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Development and evolution of the gynoecium in Myrteae (Myrtaceae) 
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Rafael R. Pimentel , Natália P. Barreira , Diego P. Spala , Nathane B. Cardim , Marcelo C. Souza , Bárbara Sá-Haiad , Silvia R. Machado , Joecildo F. Rocha and Lygia D. R. Santiago-Fernandes
pp. 335-346

Myrtaceae, a huge group of flowering plants to which ‘Eucalyptus’ and ‘guava’ belong, forms a major component of tropical rainforests, playing important role in the food chain due to the fleshy fruits eaten by many animals. Myrteae is a subgroup with species difficult to recognise due to the similar flower morphology. The structure of the female part of the flower (gynoecium) revealed great diversity giving new insight on Myrteae evolution, assuring ovule protection and efficient seed dispersal.

 
  
 

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Do fire-related cues, including smoke-water, karrikinolide, glyceronitrile and nitrate, stimulate the germination of 17 Anigozanthos taxa and Blancoa canescens (Haemodoraceae)? 
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Katherine S. Downes , Marnie E. Light , Martin Pošta , Ladislav Kohout and Johannes van Staden
pp. 347-358

Kangaroo paws and catspaws are iconic Australian plants with substantial horticultural potential although they have seed that is often difficult to germinate. Many of these are known to germinate after fire, so the influence of a range of fire-related chemicals on germination was investigated. Once dormancy was alleviated, many kangaroo paw and catspaw taxa germinated in response to glyceronitrile rather than the more widely known smoke-derived chemical, karrikinolide.

 
  
 

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Published online 09 September 2014
Salt stress differently affects growth, water status and antioxidant enzyme activities in Solanum lycopersicum and its wild relative Solanum chilense 
Juan Pablo Martínez, Alejandro Antúnez, Héctor Araya, Ricardo Pertuzé, Lida Fuentes, X. Carolina Lizana and Stanley Lutts

The research reports on the salinity-tolerance mechanism of two species, namely, cropped (S. lycopersicum) and wild (S. chilense) tomato. This study compares the physiological response to salt stress, demonstrating that the wild species copes better with salinity than does the cropped tomato. Our work elucidates the advantages of wild tomato to successfully grow in saline conditions and the potential manipulation by plant breeding of the cropped tomato.

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These articles have been peer reviewed and accepted for publication. They are still in production and have not been edited, so may differ from the final published form.

    BT14139  Accepted 11 September 2014
    The influence of depth-to-groundwater on structure and productivity of Eucalyptus woodlands
    SEPIDEH ZOLFAGHAR, Derek Eamus, Randol Villalobos-Vega, Rizwana Rumman, James Cleverly, Melanie Zepple
    Abstract


    BT14103  Accepted 12 September 2014
    Demographic history and niche conservatism of tropical rainforest trees separated along an altitudinal gradient of a biogeographic barrier
    Rohan Mellick, Peter Wilson, Maurizio Rossetto
    Abstract


    BT14063  Accepted 11 September 2014
    Contrasting breeding systems revealed in the rainforest genus Davidsonia (Cunoniaceae): Can polyembryony turn the tables on rarity?
    Frances Eliott, Mervyn Shepherd, Maurizio Rossetto, Peter Bundock, Nicole Rice, Robert Henry
    Abstract


    BT14072  Accepted 29 August 2014
    The function of foliar scales in water conservation: An evaluation using tropical-mountain, evergreen-shrubs of the species Rhododendron in section Schistanthe (Ericaceae).
    Erik Nilsen, Zhe Bao, David Webb
    Abstract


    BT14091  Accepted 26 August 2014
    Large scale micropropagation of the Australian key species Gahnia radula (Cyperaceae) and its return to revegetation sites
    Andrea Kodym, Ian Clarke, Cristina Aponte, Shane Turner, Eric Bunn, John Delpratt
    Abstract


    BT14138  Accepted 24 August 2014
    Synchronous monoecy in Ecdeiocoleaceae (Poales) in Western Australia.
    Barbara Briggs, Allan Tinker
    Abstract


    BT14032  Accepted 08 August 2014
    Diversity of exotic vascular plant species on Moreton Island in sub-tropical Australia: increase over 100 years
    Jian Wang
    Abstract


    BT14117  Accepted 30 July 2014
    Reproductive trajectories over decadal time-spans after fire for eight obligate-seeder shrub species in south-eastern Australia
    Annette Muir, Peter Vesk, Graham Hepworth
    Abstract




The Most Read ranking is based on the number of downloads from the CSIRO PUBLISHING website of articles published in the previous 12 months. Usage statistics are updated daily.

Rank Paper Details
1. Published 23 May 2014
Review of the phytogeography of Cape York Peninsula: a flora that illustrates the development of the Australian sclerophyll biota

Bruce Wannan

2. Published 1 November 2013
Variation in leaf morphology of the invasive cat's claw creeper Dolichandra unguis-cati (Bignoniaceae)

Richard L. Boyne, Susan P. Harvey, Kunjithapatham Dhileepan and Tanya Scharaschkin

3. Published 1 November 2013
Comparative dating of Acacia: combining fossils and multiple phylogenies to infer ages of clades with poor fossil records

Joseph T. Miller, Daniel J. Murphy, Simon Y. W. Ho, David J. Cantrill and David Seigler

4. Published 1 November 2013
Serotiny in southern hemisphere conifers

P. G. Ladd, J. J. Midgley and A. P. Nield

5. Published 11 February 2014
Guttation: path, principles and functions

Sanjay Singh

6. Published 1 November 2013
Natural and cultural histories of fire differ between Tasmanian and mainland Australian alpine vegetation

Jamie B. Kirkpatrick and Kerry L. Bridle

7. Published 1 November 2013
Different responses in leaf pigments and leaf mass per area to altitude between evergreen and deciduous woody species

Yan Li, Dongmei Yang, Shuang Xiang and Guoyong Li

8. Published 1 May 2014
Do habitat fragmentation and fire influence variation of plant species composition, structure and diversity within three regional ecosystems on the Sunshine Coast, Queensland, Australia?

Rohan Etherington and Alison Shapcott

9. Published 23 May 2014
Genetic diversity and biogeography of the boab Adansonia gregorii (Malvaceae: Bombacoideae)

Karen L. Bell, Haripriya Rangan, Rachael Fowler, Christian A. Kull, J. D. Pettigrew, Claudia E. Vickers and Daniel J. Murphy

10. Published 8 July 2014
Molecular genetic diversity and population structure in Eucalyptus pauciflora subsp. pauciflora (Myrtaceae) on the island of Tasmania

Archana Gauli, Dorothy A. Steane, René E. Vaillancourt and Brad M. Potts

11. Published 1 May 2014
Low-phosphorus conditions affect the nitrogen nutrition and associated carbon costs of two legume tree species from a Mediterranean-type ecosystem

Anathi Magadlela, Aleysia Kleinert, Léanne L. Dreyer and Alex J. Valentine

12. Published 21 March 2014
Foliar physiognomic climate estimates for the Late Cretaceous (Cenomanian–Turonian) Lark Quarry fossil flora, central-western Queensland, Australia

Tamara L. Fletcher, Patrick T. Moss and Steven W. Salisbury

13. Published 21 March 2014
Effect of forest fragmentation and altitude on the mating system of Eucalyptus pauciflora (Myrtaceae)

Archana Gauli, René E. Vaillancourt, Dorothy A. Steane, Tanya G. Bailey and Brad M. Potts

14. Published 11 February 2014
Correlated morphological and genetic patterns in Embothrium coccineum (Proteaceae) across climate and geography: can Embothrium survive patagonian climate change?

Cintia P. Souto and Peter E. Smouse

15. Published 11 February 2014
Population biology of coppicing plants: survival of mallee (Eucalyptus spp.) populations exposed to contrasting fire and cutting regimes

James C. Noble and Peter J. Diggle

16. Published 1 May 2014
Spatial and temporal variation in damage and dieback in a threatened subantarctic cushion species

J. Whinam, J. A. Abdul-Rahman, M. Visoiu, M.-B. F. di Folco and J. B. Kirkpatrick

17. Published 11 February 2014
Eucalypt forests as indicators of the gradients within the central Queensland serpentine landscape of Australia

Rebecca A. Hendry and Kevin Ray Wormington

18. Published 11 February 2014
Fire does not stimulate flowering of the grasstree Xanthorrhoea latifolia subsp. latifolia in central Queensland

Stephen C. McKillup and Ruth V. McKillup

19. Published 23 May 2014
Unravelling the evolutionary history of Eucalyptus cordata (Myrtaceae) using molecular markers

Peter A. Harrison, Rebecca C. Jones, René E. Vaillancourt, Robert J. E. Wiltshire and Brad M. Potts

20. Published 21 March 2014
Impact of distance to mature forest on the recolonisation of bryophytes in a regenerating Tasmanian wet eucalypt forest

Thomas P. Baker, Gregory J. Jordan, Patrick J. Dalton and Susan C. Baker


      
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Volume 62 (4)

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