Ganoderma philippii (red root rot).

2020 ◽  
Author(s):  
R. R. M. Paterson
Keyword(s):  
East Asia ◽  
Root Rot ◽  
Woody Plant ◽  
New Caledonia ◽  
South East Asia ◽  
Root Pathogen ◽  
Tropical Plantations ◽  
Combat Climate Change ◽  
Plantation Crops ◽  
Significant Disease

Abstract G. philippii was described as a root pathogen that is particularly destructive to tropical plantation crops, especially rubber (Steyaert, 1975a). It occurs on many woody and non-woody plant hosts in South-East Asia through Indonesia to Papua New Guinea and New Caledonia (UK CAB International, 1993). Acacia trees are considered as invasive species and as an economic crop (Koutika and Richardson, 2019) and the significance of the disease is from both aspects. A similar situation exists for other trees such as Eucalyptus (Deus et al., 2019). These trees are being considered to combat climate change by absorbing carbon dioxide and consequently disease is extremely important. Red root rot is a significant disease of tropical plantations in South-East Asia. In severely infected areas in Malaysia, root rot caused more than 40% mortality of Acacia trees aged between 9 and 14 years. In Indonesia, the disease can kill up to 28% of trees in second-rotation A. mangium plantations in Sumatra and Kalimantan. Second rotation A. mangium and A. crassicarpa plantations trees as young as 6 months old may be killed by red root disease (Gafur et al., 2015).

Ganoderma philippii (red root rot).

2020 ◽  
Author(s):  
R. R. M. Paterson
Keyword(s):  
East Asia ◽  
Root Rot ◽  
Woody Plant ◽  
New Caledonia ◽  
South East Asia ◽  
Root Pathogen ◽  
Tropical Plantations ◽  
Combat Climate Change ◽  
Plantation Crops ◽  
Significant Disease

Abstract G. philippii was described as a root pathogen that is particularly destructive to tropical plantation crops, especially rubber (Steyaert, 1975a). It occurs on many woody and non-woody plant hosts in South-East Asia through Indonesia to Papua New Guinea and New Caledonia (UK CAB International, 1993). Acacia trees are considered as invasive species and as an economic crop (Koutika and Richardson, 2019) and the significance of the disease is from both aspects. A similar situation exists for other trees such as Eucalyptus (Deus et al., 2019). These trees are being considered to combat climate change by absorbing carbon dioxide and consequently disease is extremely important. Red root rot is a significant disease of tropical plantations in South-East Asia. In severely infected areas in Malaysia, root rot caused more than 40% mortality of Acacia trees aged between 9 and 14 years. In Indonesia, the disease can kill up to 28% of trees in second-rotation A. mangium plantations in Sumatra and Kalimantan. Second rotation A. mangium and A. crassicarpa plantations trees as young as 6 months old may be killed by red root disease (Gafur et al., 2015).

What was the vegetation in northwest Australia during the Paleogene, 66–23million years ago?

2018 ◽  
Vol 66 (7) ◽  
pp. 556 ◽  
Author(s):  
Michael K. Macphail ◽  
Robert S. Hill
Keyword(s):  
East Asia ◽  
National Park ◽  
Pacific Islands ◽  
New Caledonia ◽  
New Guinea ◽  
First Record ◽  
South East Asia ◽  
North West ◽  
The North ◽  
Dry Conditions

Fossil pollen and spores preserved in drillcore from both the upper South Alligator River (SARV) in the Kakadu National Park, Northern Territory and the North-West Shelf, Western Australia provide the first record of plants and plant communities occupying the coast and adjacent hinterland in north-west Australia during the Paleogene 66 to 23million years ago. The palynologically-dominant woody taxon is Casuarinaceae, a family now comprising four genera of evergreen scleromorphic shrubs and trees native to Australia, New Guinea, South-east Asia and Pacific Islands. Rare taxa include genera now mostly restricted to temperate rainforest in New Guinea, New Caledonia, New Zealand, South-East Asia and/or Tasmania, e.g. Dacrydium, Phyllocladus and the Nothofagus subgenera Brassospora and Fuscospora. These appear to have existed in moist gorges on the Arnhem Land Plateau, Kakadu National Park. No evidence for Laurasian rainforest elements was found. The few taxa that have modern tropical affinities occur in Eocene or older sediments in Australia, e.g. Lygodium, Anacolosa, Elaeagnus, Malpighiaceae and Strasburgeriaceae. We conclude the wind-pollinated Oligocene to possibly Early Miocene vegetation in the upper SARV was Casuarinaceae sclerophyll forest or woodland growing under seasonally dry conditions and related to modern Allocasuarina/Casuarina formations. There are, however, strong floristic links to coastal communities growing under warm to hot, and seasonally to uniformly wet climates in north-west Australia during the Paleocene-Eocene.

scholarly journals Oospore Production in Phytophthora Cinnamomi in the Presence of Trichoderma Koningii

1972 ◽  
Vol 25 (4) ◽  
pp. 861 ◽  
Author(s):  
BH Pratt ◽  
JH Sedgley ◽  
WA Heather ◽  
CJ Shepherd
Keyword(s):  
East Asia ◽  
Root Rot ◽  
Phytophthora Cinnamomi ◽  
South East Asia ◽  
Native Plant ◽  
Native Plant Species ◽  
Root Rot Disease ◽  
Trichoderma Koningii ◽  
Eastern Australia ◽  
Rot Disease

The soil-borne fungus Phytophthora cinnamomi Rands is a particularly impor-tant pathogen in Australia because of its consistent association with root-rot disease of a wide variety of exotic and native plant species. It was thought originally to have been introduced from south-east Asia (Crandall and Gravatt 1967), but evidence recently obtained (Pratt, Heather, and Shepherd, unpublished data), suggests that it may be indigenous to eastern Australia and may have been partly instrumental in determining the distribution of certain susceptible species, particularly Eucalyptu8 spp.

Phylogenetic connections of phyllodinous species of Acacia outside Australia are explained by geological history and human-mediated dispersal

2012 ◽  
Vol 25 (6) ◽  
pp. 390 ◽  
Author(s):  
Gillian K. Brown ◽  
Daniel J. Murphy ◽  
James Kidman ◽  
Pauline Y. Ladiges
Keyword(s):  
Indian Ocean ◽  
East Asia ◽  
New Caledonia ◽  
New Guinea ◽  
The Philippines ◽  
Western Pacific ◽  
Disjunct Distribution ◽  
South East Asia ◽  
Northern Australia ◽  
Australian Species

Acacia sensu stricto is found predominantly in Australia; however, there are 18 phyllodinous taxa that occur naturally outside Australia, north from New Guinea to Indonesia, Taiwan, the Philippines, south-western Pacific (New Caledonia to Samoa), northern Pacific (Hawaii) and Indian Ocean (Mascarene Islands). Our aim was to determine the phylogenetic position of these species within Acacia, to infer their biogeographic history. To an existing molecular dataset of 109 taxa of Acacia, we added 51 new accessions sequenced for the ITS and ETS regions of nuclear rDNA, including samples from 15 extra-Australian taxa. Data were analysed using both maximum parsimony and Bayesian methods. The phylogenetic positions of the extra-Australian taxa sampled revealed four geographic connections. Connection A, i.e. northern Australia?South-east Asia?south-western Pacific, is shown by an early diverging clade in section Plurinerves, which relates A. confusa from Taiwan and the Philippines (possibly Fiji) to A. simplex from Fiji and Samoa. That clade is related to A. simsii from southern New Guinea and northern Australia and other northern Australian species. Two related clades in section Juliflorae show a repeated connection (B), i.e. northern Australia?southern New Guinea?south-western Pacific. One of these is the ?A. auriculiformis clade', which includes A. spirorbis subsp. spirorbis from New Caledonia and the Loyalty Islands as sister to the Queensland species A. auriculiformis; related taxa include A. mangium, A. leptocarpa and A. spirorbis subsp. solandri. The ?A. aulacocarpa clade' includes A. aulacocarpa, A. peregrinalis endemic to New Guinea, A. crassicarpa from New Guinea and Australia, and other Australian species. Acacia spirorbis (syn. A. solandri subsp. kajewskii) from Vanuatu (Melanesia) is related to these two clades but its exact position is equivocal. The third biogeographic connection (C) is Australia?Timor?Flores, represented independently by the widespread taxon A. oraria (section Plurinerves) found on Flores and Timor and in north-eastern Queensland, and the Wetar island endemic A. wetarensis (Juliflorae). The fourth biogeographic connection (D), i.e. Hawaii?Mascarene?eastern Australia, reveals an extreme disjunct distribution, consisting of the Hawaiian koa (A. koa, A. koaia and A. kaoaiensis), sister to the Mascarene (R�union Island) species A. heterophylla; this clade is sister to the eastern Australian A. melanoxylon and A. implexa (all section Plurinerves), and sequence divergence between taxa is very low. Historical range expansion of acacias is inferred to have occurred several times from an Australian?southern New Guinean source. Dispersal would have been possible as the Australian land mass approached South-east Asia, and during times when sea levels were low, from the Late Miocene or Early Pliocene. The close genetic relationship of species separated by vast distances, from the Indian Ocean to the Pacific, is best explained by dispersal by Austronesians, early Homo sapiens migrants from Asia.

The systematics and biology of the spider genus Nephila (Araneae:Nephilidae) in the Australasian region

2007 ◽  
Vol 21 (5) ◽  
pp. 407 ◽  
Author(s):  
Mark S. Harvey ◽  
Andrew D. Austin ◽  
Mark Adams
Keyword(s):  
New Zealand ◽  
East Asia ◽  
New Caledonia ◽  
New Guinea ◽  
South East Asia ◽  
Northern Australia ◽  
Allozyme Data ◽  
New Synonyms ◽  
Nephila Plumipes ◽  
Australasian Region

Five species of the nephilid genus Nephila Leach are found in the Australasian region, which for the purposes of this study was defined as Australia and its dependencies (including Lord Howe I., Norfolk I., Christmas I., Cocos (Keeling) Is), New Guinea (including Papua New Guinea and the Indonesian province of West Papua), Solomon Is, Vanuatu, New Caledonia, Fiji, Tonga, Niue, New Zealand and other parts of the south-west Pacific region. All species are redescribed and illustrated. Nephila pilipes (Fabricius) occurs in the closed forests of eastern and northern Australia, New Guinea, Solomon Is and Vanuatu (through to South-East Asia); N. plumipes (Latreille) is found in Australia (including Lord Howe I. and Norfolk I.), New Guinea, Vanuatu, Solomon Is and New Caledonia; N. tetragnathoides (Walckenaer) inhabits Fiji, Tonga and Niue; N. antipodiana (Walckenaer) occurs in northern Australia (as well as Christmas I.), New Guinea and Solomon Is (through to South-East Asia); and N. edulis (Labillardière) is found in Australia (including Cocos (Keeling) Is), New Guinea, New Zealand and New Caledonia. Epeira (Nephila) walckenaeri Doleschall, E. (N.) hasseltii Doleschall, N. maculata var. annulipes Thorell, N. maculata jalorensis Simon, N. maculata var. novae-guineae Strand, N. pictithorax Kulczyński, N. maculata var. flavornata Merian, N. pictithorax Kulczyński, N. maculata var. flavornata Merian, N. maculata piscatorum de Vis, and N. (N.) maculata var. lauterbachi Dahl are proposed as new synonyms of N. pilipes. Nephila imperialis var. novaemecklenburgiae Strand, N. ambigua Kulczyński, N. sarasinorum Merian and N. celebesiana Strand are proposed as new synonyms of N. antipodiana. Meta aerea Hogg, N. meridionalis Hogg, N. adelaidensis Hogg and N. meridionalis hermitis Hogg are proposed as new synonyms of N. edulis. Nephila picta Rainbow is removed from the synonymy of N. plumipes and treated as a synonym of N. edulis, and N. nigritarsis insulicola Pocock is removed from the synonymy of N. plumipes and treated as a synonym of N. antipodiana. Allozyme data demonstrate that N. pilipes is distinct at the 80% FD level from N. edulis, N. plumipes and N. tetragnathoides. Nephila plumipes and N. tetragnathoides, deemed to represent sister-taxa owing to the shared presence of a triangular protrusion of the male pedipalpal conductor, were found to differ at 15% FD in the genetic study. No genetic differentiation was found between 10 populations of N. edulis sampled across mainland Australia. Species of the genus Nephila have been extensively used in ecological and behavioural studies, and the biology of Nephila species in the Australasian region is extensively reviewed and compared with studies on Nephila species from other regions of the world.

Systematics, phylogeny, and zoogeography of the lizard genus Diplodactylus Gray (Gekkonidae)

1967 ◽  
Vol 15 (5) ◽  
pp. 1007 ◽  
Author(s):  
AG Kluge
Keyword(s):  
New Zealand ◽  
East Asia ◽  
Type Species ◽  
Upper Cretaceous ◽  
New Caledonia ◽  
The Other ◽  
External Morphology ◽  
South East Asia ◽  
Natural Group ◽  
Nasal Process

Each of the 14 genera now referred to the subfamily Diplodactylinae (Naultinus, Hoplodactylus, Heteropholis, Bavayia, Rhacodactylus, Eurydactylodes, Pseudothecadactylus, Carphodactylus, Phyllurus, Nephrurus, Oedura, Diplodactylus, Rhynchoedura, and Crenadactylus) is characterized on the basis of its internal and external morphology. The type species, referred species, and distribution are given for each genus. The Diplodactylinae are divided into two tribes primarily on the basis of differences in the arrangement and number of preanal pores and the size and shape of the nasal process of the premaxilla. The Carphodactylini includes Naultinus, Hoplodactylus, Heteropholis, Bavayia, Rhacodactylus, Eurydactylodes, Carphodactylus, Pseudothecadactylus, Phyllurus, and Nephrurus. The Diplodactylini includes Diplodactylus, Oedura, Rhynchoedura, and Crenadactylus. The Carphodactylini appear to be more primitive than the Diplodactylini. Carphodactylus may be close to the ancestral stock of the subfamily. Phyllurus and Nephrurus seem to be closely related to Carphodactylus. Pseudothecadactylus is considered to be closely related to the New Caledonia-Loyalty Islands radiation, which consists of Eurydactylodes and Rhacodactylus, and probably Bavayia. The New Zealand genera Hoplodactylus, Heteropholis, and Naultinus seem to form a natural group which is related to the New Caledonian genera. Crenadactylus is probably only distantly related to the other genera of the Diplodactylini. Rhynchoedura seems to be related to the stenodactylus group of Diplodactylus, while Oedura shows an affinity to the strophurus group of that genus. Geographically, the Diplodactylinae is restricted to the Australian Region (Australia, New Caledonia, Loyalty Islands, and New Zealand). The ancestral stock of the subfamily probably originated in south-east Asia and dispersed toward Australia by way of the Indo-Australian Archipelago during the upper Cretaceous. It is postulated that the subfamily reached Australia (and continental New Guinea) by Palaeocene- Eocene time.

Anthelepis, a new genus for four mainly tropical species of Cyperaceae from Australia, New Caledonia and South-East Asia

2019 ◽  
Author(s):  
Russell L. Barrett ◽  
Karen L. Wilson ◽  
Jeremy J. Bruhl
Keyword(s):  
East Asia ◽  
New Genus ◽  
New Caledonia ◽  
Tropical Species ◽  
South East Asia ◽  
Key To Species ◽  
Molecular Phylogenetic ◽  
Tropical Areas ◽  
One New Species ◽  
Molecular Phylogenetic Data

A new genus, Anthelepis R.L.Barrett, K.L.Wilson & J.J.Bruhl, is described for four Cyperaceae species from mainly tropical areas of South-East Asia, New Caledonia and Australia. The relationships of the three previously described species have been much-debated. In recent decades, they have most commonly been placed in either Schoenus L. or Tricostularia Nees ex Lehm., but molecular phylogenetic data have demonstrated that they are not closely related to either genus and a new generic name is required. The following three new combinations are made: Anthelepis guillauminii (Kük.) R.L.Barrett, K.L.Wilson & J.J.Bruhl (based on Schoenus guillauminii Kük.), A. paludosa (R.Br.) R.L.Barrett, K.L.Wilson & J.J.Bruhl (based on Chaetospora paludosa R.Br.) and A. undulata (Thwaites) R.L.Barrett, K.L.Wilson & J.J.Bruhl (based on Cladium undulatum Thwaites). One new species, Anthelepis clarksonii R.L.Barrett, K.L.Wilson & J.J.Bruhl, is described from northern Queensland, Australia, as distinct from A. undulata. Full descriptions, illustrations and a key to species are provided. All species are confirmed as having C3 anatomy.

scholarly journals New taxa of extant and fossil primitive moths in South-East Asia and their biogeographic significance (Lepidoptera, Micropterigidae, Agathiphagidae, Lophocoronidae)

2021 ◽  
Vol 44 ◽  
pp. 29-56
Author(s):  
Wolfram Mey ◽  
Théo Léger ◽  
Vu Van Lien
Keyword(s):  
New Species ◽  
East Asia ◽  
Plate Tectonics ◽  
New Caledonia ◽  
Field Work ◽  
First Record ◽  
Morphological Characters ◽  
Wing Venation ◽  
South East Asia ◽  
Australian Region

We report some surprising recent distributional range extensions of one extant genus and two more families of primitive moths discovered in amber fossils from South-east Asia which were previously only known from Australia and/or the southwestern Pacific, with the possible exception of an undescribed Siberian fossil attributed to Lophocoronidae. During entomological field work in rain forests of central Vietnam a new species of Micropterigidae was discovered. It is described herein as Aureopterix bachmaensis sp. nov. based on male and female specimens collected at light in the Bach-Ma National Park. The identification was corroborated by a molecular analysis. This is the first record of this genus in the Northern Hemisphere, previously thought to be restricted to the Australian Region (including New Caledonia). First results of investigations of Burmese amber inclusions now reveal the presence of the Australian Region families Agathiphagidae and Lophocoronidae in the Cretaceous of Asia. The fossil taxon Agathiphagama perdita gen. nov., sp. nov. is established on the basis of two females and this is assigned to Agathiphagidae. The fossil genus Acanthocorona gen. nov. is established in Lophocoronidae and includes seven species described here as A. skalskiisp. nov., A. bowangisp. nov., A. muellerisp. nov., A. kuranishiisp. nov., A. sattlerisp. nov., A. spiniferasp. nov. and A. wichardisp. nov. The new species can be distinguished by the male genitalia which are illustrated together with wing venation and other morphological characters. The disjunct ranges of these taxa are discussed in a historical biogeographic context. Vicariance and dispersal hypotheses explaining the disjunct pattern are discussed. The discovery of these new species suggests a broader ancestral range of Aureopterix, Agathiphagidae and Lophocoronidae. Their extant ranges may be regarded as remnants or relicts of a wider distribution in the Mesozoic, or at least in the case of Aureopterix they could be the results of recent or ancient dispersal processes, since the calibration of molecular splits does not so far accord with plate tectonics.

CIScoSI Study [Children Immunization Status and cases of Systemic Illness]

2018 ◽  
Vol 3 (3) ◽  
Keyword(s):  
Infectious Diseases ◽  
East Asia ◽  
Pediatric Patients ◽  
Severe Disease ◽  
Tertiary Care ◽  
Immunization Coverage ◽  
South East Asia ◽  
Immunization Status ◽  
Tertiary Care Hospitals ◽  
Total Coverage

To determine the immunization status of pediatric patients under age of 5 years visiting pediatric department of tertiary care hospitals in South East Asia. The aim of this study was to appreciate the awareness and implementation of vaccination in pediatric patients who came into pediatric outpatient Department with presenting complain other than routine vaccination. we can also know the count of patients who do not complete their vaccination after birth. we can differentiate between vaccinated and unvaccinated patients and incidence of severe disease in both groups. Immunization is a protective process which makes a person resistant to the harmful diseases prevailing in the community, typically by vaccine administration either orally or intravenously. It is proven for controlling and eliminating many threatening diseases from the community. WHO report that licensed vaccines are available for the prevention of many infectious diseases. After the implementation of effective immunization the rate of many infectious diseases have declined in many countries of the world. South-East Asia is far behind in the immunization coverage. An estimated total coverage is 56%-88% for a fully immunized child, which is variable between countries. Also the coverage is highest for BCG and lowest for Polio.

Sign in / Sign up

Export Citation Format

Share Document