First record ofNeoscytalidium dimidiatumandN. novaehollandiaeonMangifera indicaandN. dimidiatumonFicus caricain Australia

Ray, Jane; Burgess, Treena I.; Lanoiselet, Vincent

doi:10.1071/dn10018

Cited by 66 publications

(43 citation statements)

References 5 publications

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“…The disease, however, was widespread in the region. Leavitt, 1990;Leavitt & Munnecke, 1987;Martin, Martin, de Francisco, & Cobos, 2009;Niekerk, Crous, Groenewald, Fourie, & Halleen, 2004;Phillips, 1998Phillips, , 2002Ray, Burgess, & Lanoiselet, 2010;Taylor, Hardy, Wood, & Burgess, 2005;Úrbez-Torres et al, 2006). Leavitt, 1990;Leavitt & Munnecke, 1987;Martin, Martin, de Francisco, & Cobos, 2009;Niekerk, Crous, Groenewald, Fourie, & Halleen, 2004;Phillips, 1998Phillips, , 2002Ray, Burgess, & Lanoiselet, 2010;Taylor, Hardy, Wood, & Burgess, 2005;Úrbez-Torres et al, 2006).…”

Section: Resultsmentioning

confidence: 99%

First detection of Neoscytalidium dimidiatum associated with canker disease in Egyptian Ficus trees

2018

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In September 2013, a canker disease of Ficus nitida and F. benjamina was reported for the first time in Assiut governorate, Egypt. Infected samples were collected from various locations. Pure cultures of a fungus were isolated on potato dextrose agar at 25°C from diseased plants. Morphological investigation and DNA sequencing showed that the causal agent was Neoscytalidium dimidiatum. A pathogenicity test conducted using 2-year-old plants of each host gave 70%-80% infection, and the pathogen was reisolated from the inoculated plants. A pure culture of N. dimidiatum was deposited in the culture collection of the Assiut University Mycological Centre (AUMC) under the code AUMC 9293 and the ITS sequence was placed in NCBI under accession number KX985929.

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Section: Resultsmentioning

confidence: 99%

First detection of Neoscytalidium dimidiatum associated with canker disease in Egyptian Ficus trees

2018

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“…Mango dieback in the north (N) and NW of Australia has been associated with N. dimidiatum and N. novaehollandiae (Ray et al 2010). Tip dieback has been reported in mango trees situated in Florida, associated with infection by B. dothidea (Ploetz et al 1996) and N. ribis (Ramos et al 1991;Ramos et al 1997;Prakash and Eckert 2001).…”

Section: Au)mentioning

confidence: 99%

“…All pathogens that were isolated from cankered mango stems produced lesions. On the mango fruit, (Ray et al 2010). Lasiodiplodia hormozganensis was recently described from M. indica and Olea sp in Iran (Abdollahzadeh et al 2010) and from non-native environments in Australia (originally identified as L. parva).…”

Section: Pathogenicity Trial On Fruitmentioning

confidence: 99%

Pathogenic Botryosphaeriaceae associated with Mangifera indica in the Kimberley Region of Western Australia

Ray²,

et al. 2011

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Members of the Botryosphaeriaceae, in particular Lasiodiplodia theobromae, Neofusicoccum parvum, Neofusicoccum mangiferae and Botryosphaeria dothidea, commonly cause stem cankers, dieback and stem end rot of mangoes worldwide. In the current study, eight taxa of Botryosphaeriaceae were identified as canker-associated fungi, pathogens, potential pathogens or endophytes of mangoes in the Kimberley, Australia. These include Neoscytalidium novaehollandiae, Neoscytalidium dimidiatum, Pseudofusicoccum adansoniae, P. ardesiacum, P.kimberleyense, Lasiodiplodia sp. 1, Lasiodiplodia iraniensis and Lasiodiplodia pseudotheobromae. The pathogenicity of a selection of these species toward fruit and branches was tested. All were pathogenic to mango in comparison to the control, with Lasiodiplodia spp.being the most pathogenic. It appears that either geographic isolation or the unique growing conditions in the Kimberley may have provided an effective barrier to the acquisition or establishment of known botryosphaeriaceous pathogens. Wounds caused by mechanical pruning may provide an entry point for infection, whilst severe pruning may increase plant stress.

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“…It is only in recent times (late 1980's) that their endophytic nature has been established and studied . Neoscytalidium novaehollandiae has only been recently identified and has previously only been recorded causing disease in Mangifera indica L. (Ray et al 2010) and from asymptomatic branches (sapwood) of Acacia synchronica Maslin, Adansonia gibbosa F.Muell., Crotalaria medicaginea L. and Grevillia agrifolia A.Cunn. ex R.Br.…”

Section: Lasiodiplodia Parva L Pseudotheobromae Barriopsis Iranianmentioning

confidence: 99%

“…ex R.Br. in Western Australia (Pavlic et al 2008) whereas N. dimidiatum is a worldwide cosmopolitan pathogen with a large host range (Ray et al 2010;Al-Saadoon et al 2012;Chuang et al 2012;Lan et al 2012;Liu et al 2012;Machado et al 2012). …”

Section: Lasiodiplodia Parva L Pseudotheobromae Barriopsis Iranianmentioning

confidence: 99%

Parkinsonia dieback: investigations into its cause, ecology and potential for biological control

Diplock¹

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Parkinsonia aculeata, a Weed of National Significance (WoNS) has been observed displaying unexplained mortality within populations across northern Australia since the 1950s. This disorder is commonly referred to as parkinsonia dieback and causes substantial plant death in some areas. In some observed cases, plants suffering from dieback show symptoms starting from the tip of the branch which begins to die back, with phyllodes and pinnae drying up and remaining attached to the plant. A distinct dark, necrotic region on the stem appears to move down the plant as the disease develops. Vascular staining is often evident when the vascular tissue of stems are exposed. It was hypothesised that this disorder is caused by a fungal pathogen or pathogen complex, offering potential for biological control of parkinsonia. Dieback movement in a naturally occurring area was studied over a period of seven years.Plant health in two 50m transects was assessed to monitor the movement of parkinsonia iv dieback and to establish a general base line understanding of the time taken for an adult parkinsonia tree to be killed by dieback. Individual plant health generally declined over consecutive years, with 98% of plants dying over the study period and no new seedling recruitment observed.These studies confirmed that a range of fungi, particularly those from the Botryosphaeriaceae family are associated with parkinsonia dieback. Field inoculation trials proved some of these species are capable of causing large lesions on adult plants, and in some instances are able to cause plant mortality when formulated using a dry, solid medium.Transect studies assessing the movement of naturally occurring dieback through a stand of parkinsonia plants provide the first long term study of this phenomenon and its effect on plant health over time. This provides a significant contribution to our understanding of parkinsonia dieback and offers potential for the formulation of biocontrol agents following further investigations.v

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First record ofNeoscytalidium dimidiatumandN. novaehollandiaeonMangifera indicaandN. dimidiatumonFicus caricain Australia

Cited by 66 publications

References 5 publications

First detection of Neoscytalidium dimidiatum associated with canker disease in Egyptian Ficus trees

First detection of Neoscytalidium dimidiatum associated with canker disease in Egyptian Ficus trees

Pathogenic Botryosphaeriaceae associated with Mangifera indica in the Kimberley Region of Western Australia

Parkinsonia dieback: investigations into its cause, ecology and potential for biological control

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