ARTICLE 155 is . These P. psidii P. Key words: ƒ; “ Myrtus communis Pucciniaceae Uredo rangellii et al. E?>?ˆ Puccinia psidii Myrtus communis 1 ˆ . " ; IMA FUNGUS · VOLUME 4 · NO 1: 155–159 NO 1: 4 · · VOLUME FUNGUS IMA #~`~# Uredo rangelii #" might not be the rust that had been plant, collected in brown paper bags, and Puccinia In May 2013, an ornamental %;; discovered in Africa in discovered #~ 2 ; «+„; %*; psidii" P. '„*Ÿ ; % ;; * * MATERIALS AND METHODS MATERIALS !; communis " ` ˆ E?>> ~  ; P. psidii. caused by P. ƒ; species led to more commercially important Eucalyptus “ ~ *  described as et et al. et al. 1998, 2012). , Marcel Verleur 1 et al. 2007, et al. et al. ) has been Puccinia psidii, Puccinia #E?>U #E?>U et al. 2010a, Morin >}}V$ in Brazil, the rust has et al. 2011, Morin 2011, ƒ "*ˆ 1 Myrtaceae ; >E< P. psidii P. became particularly prominent et al. # ˆ et al. E??< ) in Brazil in 1884 and gained notoriety E??V;

Uredinales, Pucciniaceae ( guajava

Eucalyptus , Izette Greyling 1 Puccinia psidii 2007, Graça Puccinia psidii

in Australia has resulted in many studies to consider in ;#%*" Eucalyptus8—>}LL et al. E?>?ˆ«`~E?>>/ % % !Œ—%* *8 *8'#ŒŒ$;ŒŒ% Abstract: *€+›ë— It has a wide host range in the Myrtaceae quarantine threat globally. ;" Eucalyptus Australian industries that propagate Article info:%›>UE?>U€*›>LE?>U€Œ›ELE?>U P. psidii P. '„*Ÿ"%<|%/„* psidii* P. © 2013 International Mycological Association © 2013 International Mycological conditions: distribute and transmit the work, under the following are free to share - to copy, You Attribution: 2 / 1 The Myrtle rust pathogen, rust pathogen, The Myrtle Non-commercial:No derivative works:Any of the above conditions can be waived if you get For any reuse or distribution, you must make clear to others the license terms of this work, which can be found at http://creativecommons.org/licenses/by-nc-nd/3.0/legalcode. Nothing in this license impairs or restricts the author’s moral rights. permission from the copyright holder. VOLUME 4 · NO. 1 + ; et al. 2012). >}}|  ;; Australia where this order Myrtales in countries such as ; +; Morin et al. 2012). Puccinia psidii ; Myrtaceaeˆ et al. 1998, Glen et al. E??Vˆ INTRODUCTION considered as an important quarantine threat to many considered as an important quarantine countries (Glen et al. Psidium ; ; * % ˆ ˆ ˆ Glen  ; ˆ Š$%*# ; & Kimbrough 1979, Rayachhertry al. 2012, Kriticos et al. 2013). ›>?<<}|‘E?>U?L?>>L +ˆ`ˆE?>># 2006), Japan (Kawanishi et al. E??} * ˆ et al. ;‘  ˆ** ; % species (Morin et al. E?>E" psidii P. Roux et al. ARTICLE

Fig. 1. Puccinia psidii on Myrtus communis%*A. !Myrtus communis. B. ; M. communis shoot tip. C–D.$

‘ Œˆ/ * >; «'„*ˆ`ˆ(+<ˆ* % Ÿ ; '„*Ÿ"> ; *8 Œ® Big '„*Ÿ 'TM " U? / / ˆ Ÿ >|3!%*8*¹ *8 ˆˆ*%Ÿ " %*8*¹ *8 Œ/%#( U>?? ƒ *— }L :ˆ >? * 8 '„* Ÿ Ÿ "%> <|% Ÿˆ!ˆ "%E"% # ; ‚> ˆ!ˆ 8 www.clcbio.com) and '„* * #“ƒ*;<"et al. 2011). Sequences obtained were ;E<3!›< „ˆ8Rƒ8›‘‘;‘ 3! <× #"Ÿ(/ 8 8 ! ?E # ƒ‘ EE?E|} M ; "% >+ ƒ ` 8 EE?E}U >}}U "% L ~ et al. >}}? > $ #"Ÿ( %Ÿ%* '„* " Œˆ/ › 8 „ˆ8 }L:ˆUU? (›‘‘; }L:ˆ> Ÿ VE:ˆ>* * #* " ; V ›‘‘ VE:ˆ>?Œ ‘‘;‘ #“ƒ* ; ;ƒ/(8 5.1 (Tamura et al. 2011) was used to check the alignments ˆ* #!

156 IMA FUNGUS Puccinia psidii in Africa

Table 1.!Puccinia'„*Ÿ ARTICLE Species Origin GenBank Accession nr. Host Puccinia psidii Australia Š#LL|}?? }‚ Brazil AJ536601 Psidium guajava Brazil AJ421801 ‡ Brazil AJ421802 Melaleuca quinquenervia ˆ “$V>>LEU Syzygium jambos Š “ <}}V‚| Metrosideros polymorpha Š “$?V>?L< Melaleuca quinquenervia AJ535659 Pimenta dioca Japan AB470483 Metrosideros polymorpha %* EE?E|} Myrtus communis %* EE?E}? M. communis %* EE?E}> M. communis %* EE?E}E M. communis %* EE?E}U M. communis $ “$UL|VLE Eucalyptus grandis $ “$UL|VLU E. globulus P. cygnorum “ L}?‚?> Kunzea ericifolia

P. hordei * <>>?|‚ ‘ P. recondita * <>>?|E Triticum turgidum

Puccinia cygnorum“ L}?‚?>P. hordei* <>>?|‚ Puccinia P. recondita* <>>?|E species included in the analyses. the analyses. # E? «* DISCUSSION « * #/ * ; L| ˆ « "# %%“# Puccinia psidii % * " ; ; Eucalyptus in South %#+|L?%“#“‹!"< * ` ˆ >}}? # et al. 2010), but ‹;‚‚?L“!88 P. psidii. The present ;;P. psidii is now present %*"; RESULTS * " Myrtus communis " ; P. psidii % * ; > ; ;  ; ‹ " P. psidii on plantation grown ;" Eucalyptus ; ; —>}×>EM>‚;ª>L3%“# studies (Tommerup et al. 2003, Graça et al. E?>>%;et al. ; E?>U#; E Myrtaceae and the *"%<|% ; ìV??"8 ecosystems in Australia (Morin et al. 2012). Importantly, a „ˆ8% ;%*Heteropyxis * EE?E|}M EE?E}U natalensis (Myrtales, Heteropyxidaceae) is highly susceptible Puccinia psidii%Ÿ#!#“ƒ* P. psidii*et al. 2005). >V Ÿ "> ‚E‚ " P. psidii "% Myrtoideae Myrtaceae (Morin et al. 2012). The Ÿ%* % * * P. psidii isolates grouped H. natalensis in Heteropyxidaceae, clearly shows the potential

VOLUME 4 · NO. 1 157 Roux et al.

KF220289 South Africa EU711423 Colombia KF220291 South Africa AJ535659 Florida Pimenta

ARTICLE KF220293 South Africa KF220292 South Africa KF220290 South Africa EU348742 Uruguay Eucalyptus Puccinia psidii HM448900 Australia Agonis  EU071045 Hawaii Melaleuca EF599768 Hawaii Metrosideros AB470483 Japan AJ421802 Brazil Melaleuca AJ421801 Brazil Eugenia AJ536601 Brazil Psidium guajava

EF490601 Puccinia cygnorum AF511082 Puccinia recondita  AF511086 Puccinia hordei

0.02

Fig. 2.Œ"%Ÿ%*Puccinia psidii#‚E‚ >V„;

al. 2011). Although P. psidii Myrtales%*Myrtales ~ ; + Œ; ` Œ; E??E studies are needed to elucidate this question. ; ";P. psidii ‹ ; Eugenia, Heteropyxis, Memecylon, “ ; Syzygium, and Warneckeae «+„ ; + Œ; P. psidii ˆ spores, and will be highly dependent on rapid action. Selection much work has yet to be done to consider the potential impact that P. psidii;%*  ; that P. psidii ˆ Eucalyptus et al. 2001, Aparecido et al. 2003) and it will be necessary P. psidiiˆ;et al. 1998, Junghans et al. E??U%;et al. 2012), which implies that it will be possible to restrict the damage that might occur in commercial plantation situations. %* ";Myrtaceae " Myrtus communis % * ; morphologically similar to P. psidii such as Eucalyptus%*' $ %* ;" ; P. psidii ; $Œ—et al. E?>>Uredo rangelii (Simpson ; et al. E??‚%“# ~ˆ " ; Myrtaceae (Metrosideros angustifolia) occurs. In Australia, ; Puccinia psidiiO U. rangelii, and not P. psidii (Simpson et al. E??‚ˆ *P'`ŠE?>> et al. E?>? Š;  %* ; considered to be P. psidii*ˆet al. 2011) ;+Ÿ Eucalyptus and ;%*; ;Myrtaceae$ˆet al. E?>?Œ—et P. psidii;*

158 IMA FUNGUS Puccinia psidii in Africa

ACKNOWLEDGMENTS /' E?>> # ARTICLE Puccinia psidii %*Š› ~ " Œ ˆ+; Proceedings of the 58th Annual Western International Forest Œ"ŒˆŒ'%"‘„/ ˆ“"Š Disease Work Conference; 2010 October 4–8; Valemount, BC: 8ˆ"Š8$;Œ >U>M>UL *«› $% %; *« « ~#*Š Š $;Œ%“# >}LL Bragantia 4›LVV|? * *ˆ «— “* ~ # /  ƒ # E??< "$%#%ŠŠ Heteropyxis natalensis Puccinia psidii rust. ŠŠ„%E??} Australasian Plant Pathology 34›E| ; Puccinia psidii populations. Summa „%ˆŒ~>}}? Phytopathologica 29›EULMEU| Eucalyptus. Forestry News 90E›EEMEU 8 "Š ‹ # ;; " E???* ' ! * E??| The current and future potential Puccinia psidii “ distribution of guava rust, Œ in New Zealand. „ * Agriculture, Ecosystems and ‡#* 8 «"Œ › E??}‘E|‰ Environment 82›E} ~›#* ˆ*!/~Š#*"!ƒ ' # ! ! * * /ˆ ˆ Œ E?>U # Œ # E?>? Uredo rangelii  ; ˆ ;; Myrtaceae in Australia. Australasian › Plant Pathology 39›L‚UML‚‚ Puccinia psidii sensu lato in Australia. PLoS ONE 8: e64479. ˆ*ˆE?>>“ '›>?>UV>‘??‚LLV}  * Australasian Plant #~/~8'ˆ—#Œ*~#E?>? Pathology 40›UL‚MU<} * “ #—Ÿ % * ˆ;*'‹**ˆ#!*ˆ#ƒ >}}|/ Proceedings of the 4th International Rusts of Forest Eucalyptus;Puccinia Conference, Florence, Italy, 3–6 May 2010: 423. psidii. Pesquisa Agropecuária Brasileira 33›>U}M>LV #/8~>}V}Puccinia psidii on Pimenta dioica ˆ!**ˆ *E??>Œ; Plant Disease Reporter 63›<>?M<>E Puccinia psidii MEucalyptus. Summa Phytopathologica #!*;/!/~ŒƒE?>E; 27›E}}}|“ Myrtaceae present in Australia. PLoS ONE 7: rust M U?>UV>‘??U}|> Trees of Southern Africaˆ"›%Œ Œ—ˆ*~#*„*%%8/*E?>> ;Fitopatologia Brassileira 6: Puccinia psidii ; Eucalyptus ; ‚?UM‚?L $Mycological Progress 10›EVUME|E '!Š“E?>>#OP %;ŒŠ##*ˆ##!" “!%!*; The Australian } * E?>> ›‘‘‘ ˆ*%Œˆ#“%%*#E?>U% ‘+‘+++++‘ rust (Puccinia psidii) resistance in Eucalyptus grandis % +‚|‚+>EE‚?U‚ELVEE> Œ%8—Forest Ecology and Management 303›}>M ƒ # * *ˆ «— “* ~ # # ˆ 97. (2007) Puccinia psidii, *; %*"ƒ;ˆ*E??‚Uredinales species M;Australasian Plant Pathology 36›>M>‚ Myrtaceae. Australasian Plant ƒ /„*ˆŒƒ !#%/8*«—“* Pathology 35›> * Puccinia psidii "ˆ**ˆ‹#E??Uƒ;8—M Œ+>Eucalyptus grandis. Australasian Plant threat the Eucalyptus and other Myrtaceae. New Zealand Journal Pathology 40›LLEMLLV of Forestry Science 33›LE?MLE| ƒ /„ * *ˆ /+'; *! „8 «+~%+¹E?>>*\ #+% Œ; "! ˆ Œƒ $  ˆŠ ŠŒ;ˆMycosystema 30›|

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