Annual and herbaceous perennial native Australian plant species are symptomless hosts ofPhytophthora cinnamomiin theEucalyptus marginata(jarrah) forest of Western Australia

2012 ◽  
Vol 62 (5) ◽  
pp. 1057-1062 ◽  
Author(s):  
M. Crone ◽  
J. A. McComb ◽  
P. A. O'Brien ◽  
G. E. St J. Hardy
Keyword(s):  
Plant Species ◽  
Western Australia ◽  
Jarrah Forest ◽  
Australian Plant ◽  
Herbaceous Perennial

Cryopreservation of Anigozanthos viridis ssp. viridis and related taxa from the south-west of Western Australia

2000 ◽  
Vol 48 (6) ◽  
pp. 739 ◽  
Author(s):  
S. R. Turner ◽  
D. H. Touchell ◽  
K. W. Dixon ◽  
B. Tan
Keyword(s):  
Plant Species ◽  
Western Australia ◽  
Plant Tissue ◽  
The South ◽  
Shoot Apices ◽  
Australian Plant ◽  
South West ◽  
Culture Stage ◽  
Low Levels ◽  
Cryoprotective Solution

Cryostorage of shoot apices of the perennial monocotyledonous species Anigozanthos viridis Endl. ssp. viridis (Haemodoraceae) was investigated by using a modified vitrification protocol. The highest post-thaw survival of shoot apices (41.4%) involved preculturing shoot apices on 0.4 M sorbitol for 48 h followed by incubation in a vitrification cryoprotective solution (PVS2) for 25 min at 0˚C. The level and type of cytokinin used in the culture stage was also found to influence cryostorage success with post-thaw survival decreasing from 41% with zero to low levels of cytokinins to below 5% for cytokinin levels that are typical of plant tissue applications (2.5 ˜M) for Australian plant species. Five Haemodoraceae taxa (Anigozanthos Labill. spp. and Conostylis R.Br. spp.) were successfully cryopreserved with this modified protocol; however, a sixth taxon, Macropidia fuliginosa (Hook.) Druce., remained unresponsive to this vitrification technique.

Tree Species Preferences of Foraging Birds in Jarrah Forest in Western Australia.

1985 ◽  
Vol 12 (3) ◽  
pp. 461 ◽  
Author(s):  
I Abbott ◽  
PV Heurck
Keyword(s):  
Western Australia ◽  
Tree Species ◽  
Bird Species ◽  
Selective Logging ◽  
Jarrah Forest ◽  
Eucalyptus Marginata ◽  
Silvicultural Treatments ◽  
Species Preferences

A study of foraging by 10 bird species suggests that selective logging of large Eucalyptus marginata will only have affected Melithreptus lunatus, but that proposed silvicultural treatments, including removal of Banksia grandis, may affect several other bird species.

Comparative Studies in Selected Species of Eucalyptus Used in Rehabilitation of the Northern Jarrah Forest, Western Australia. I. Patterns of Xylem Pressure Potential and Diffusive Resistance of Leaves

1984 ◽  
Vol 32 (4) ◽  
pp. 367 ◽  
Author(s):  
IJ Colquhoun ◽  
RW Ridge ◽  
DT Bell ◽  
WA Loneragan ◽  
J Kuo
Keyword(s):  
Western Australia ◽  
Water Loss ◽  
Seasonal Patterns ◽  
Pressure Potential ◽  
Jarrah Forest ◽  
Eucalyptus Marginata ◽  
Xylem Pressure ◽  
Diffusive Resistance ◽  
Xylem Pressure Potential ◽  
The Impact

Land use which reduces tree canopy density and the impact of Phytophthora cinnamomi are believed to be altering the hydrological balance of parts of the northern jarrah forest, Western Australia. In the drier eastern zones of the forest, replacement plant communities must maintain the soil-salt-water balance to prevent significant increases in salinization of streams in water supply catchments. Daily and seasonal patterns of the diffusive resistance of leaves and xylem pressure potential were determined for the major natural dominant of the region, Eucalyptus marginata, and five other species of Eucalyptus used in rehabilitation. Three types of daily and seasonal patterns were observed. E. marginata and E. calophylla exhibited little stomatal control of water loss, and leaf resistances remained low throughout the study period (type 1). E. maculata, E. resinifera and E. saligna exhibited marked stomatal regulation during summer days when xylem pressure potentials fell below -2.O MPa (type 2). E. wandoo (type 3) also controlled water loss but developed xylem pressure potentials far lower than all other species tested (<-3.0 MPa). Although none of the species tested replicated the summer stomatal resistance and xylem pressure potential patterns of E. marginata, it is suggested that total annual water use should be examined before selecting the most appropriate species to rehabilitate disturbed sites in the eastern zones of the northern jarrah forest region.

Susceptibility of Plant Species in Coastal Dune Vegetation of South-western Australia to Killing by Armillaria luteobubalina

1998 ◽  
Vol 46 (2) ◽  
pp. 321 ◽  
Author(s):  
B. L. Shearer ◽  
C. E. Crane ◽  
R. G. Fairman ◽  
M. J. Grant
Keyword(s):  
Plant Species ◽  
Western Australia ◽  
Coastal Dune ◽  
Dune Vegetation ◽  
Species Frequency ◽  
Number Of Species ◽  
Coastal Dune Vegetation ◽  
Cross Tabulation

Estimates of the susceptibility of plant species of coastal dune vegetation tokilling by Armillaria luteobubalina Watling & Kilewere obtained from the occurrence of mycelial sheaths of the pathogen beneaththe bark of the root collars of dead plants in 62 disease centres.Dicotyledons (Magnoliopsida) outnumbered monocotyledons (Liliopsida), being81% of the 330 plant species found in disease centres in coastalvegetation. Fifty-one percent of the species were from five Magnoliopsidafamilies with the largest number of species from the Myrtaceae and Proteaceae.Eleven percent of the species were from three Liliopsida families with thelargest number of species from the Cyperaceae. Thirty-four percent of speciesoccurred in three or more disease centres. Thirty-eight percent, or a total of125 of all species, were killed by A. luteobubalina incoastal vegetation. Hosts on which the pathogen did not reach the root collarwould not have been detected. The largest number of species killed were fromthe Proteaceae (26% of species killed) followed by Myrtaceae,Epacridaceae, Papilionaceae and Mimosaceae. Only 6% of species killedwere from the Liliopsida. The distribution of species frequency and thosekilled by infection is positively skewed, with 40% of species notkilled in any centre and 8% killed in greater than 75% of thecentres in which they occurred. The percentage of disease centres in which aspecies occurred and was killed by A. luteobubalina issignificantly linearly correlated with mortality rating and relativeimportance. Cross-tabulation of species by disease centres in which plantswere killed provided the opportunity to classify the relative susceptibilityof plant species to killing by A. luteobubalina.

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