| Scientific Name | Phytotaxa 297: 55. 2017. |
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| Synonyms | 10 synonymsPuccinia psidii G. Winter, Hedwigia 23: 171. 1884.
Puccinia jambosae Henn., Hedwigia 41: 105. 1902. Puccinia cambucae Puttemans in Rangel, Arq. Mus. Nac. Rio de Janeiro 18: 153. 1917. Puccinia brittoi Rangel, Arq. Mus. Nac. Rio de Janeiro 18: 161. 1917. Puccinia barbacenensis Rangel, Arq. Mus. Nac. Rio de Janeiro 18: 154. 1917. Puccinia grumixamae Rangel, Arq. Jard. Bot. Rio de Janeiro 2: 69. 1917. Puccinia eugeniae Rangel, Arq. Mus. Nac. Rio de Janeiro 18: 154. 1917. Puccinia jamboiani Rangel, Lavoura 16: 124. 1912. Puccinia camargoi Puttemans, Bol. Mus. Nac. Rio de Janeiro 6: [1]. 1930. Puccinia actinostemonis H.S. Jacks. & Holw. in Jackson, Mycologia 23: 466. 1931. |
| Disease | Myrtle rust (Guava rust) |
| Taxonomic Rank | |||
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| Order | Pucciniales | Family | Pucciniaceae |
| Distribution | Native to South America; now widely distributed in the Americas, Pacific Islands, East and Southeast Asia, Australasia, and South Africa. Introduced to Japan (2007), Hainan, China (2009), Indonesia (2015), and Singapore (2017). |
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| Characteristics | Autoecious macrocyclic rust fungus. Sori on leaves, shoots, and fruits forming yellowish-orange to grayish lesions; urediniospores (15–26 × 13–23 µm), colorless and minutely echinulate; teliospores (25–50 × 14–28 µm), two-celled, smooth, yellowish to light brown. Basidia 4-celled producing globose basidiospores. Causes severe infection and dieback in Myrtaceae hosts. |
| Notes | Life cycle debated: basidiospore infection and recombination confirmed (McTaggart et al. 2018); possibly autoecious complete cycle (Glen 2007, Morin 2014). Infectivity via urediniospores dominant. Over 445 host species in 73 genera (CABI, 2022). Several pathogenic groups reported (Coelho 2001, Aparecido 2003). |
| Economic importance | Major quarantine pest; serious pathogen of Myrtaceae including Eucalyptus, Psidium (guava), and Syzygium species. Causes defoliation, dieback, and economic loss in forestry and horticulture. |
| References | Hennen JF et al. 2005. Catalogue of species of plant rust fungi (Uredinales) of Brazil. Coelho L et al. 2001. Summa Phytopathologica 27: 295–300. Aparecido CC et al. 2003. Summa Phytopathologica 29: 234–238. Carnegie AJ, Lidbetter JR. 2012. Australas. Plant Pathol. 41: 13–29. Glen M et al. 2007. Australas. Plant Pathol. 36: 1–16. Morin L et al. 2012. PLoS ONE 7: e35434. Morin L et al. 2014. Fungal Biology 118: 253–263. McTaggart AR et al. 2018. Plant Pathology 67: 729–734. Pegg GS et al. 2014. Plant Pathology 63: 1005–1021. Simpson JA et al. 2006. Australas. Plant Pathol. 35: 549–562. |
CTCGTTAATCCATTCATGCGCGTCACTAATTAGATGACGAGGCATTTGGCTACCTTAAGAGAGTCATAGTTACTCCCGCCGTTTACCCGCGCTTGGTTGA ATTTCTTCACTTTGACATTCAGAGCACTGGGCAGAAATCACATTGTGTCAACACCATTTTCTGGCCATCACAATGCTATGTTTTAATTAGACAGTCAGAT TCCCCTTGTCCGTTCCAGTTCATAGTTGACAGTTAATTGCTTGCCAGACGCTTTTAAAGGCTGCCCAAAACATCACAATAAAGTTCCATCCAAGTCCGCC ACTAGTTTCCTAGTAGTAGTCCTAGTCAGATCCTTAAAGATCTATTAAGGGCCCAACAAGCCCTGCCCTATGAGCCAATCCTTTTCCCTAAGTTACGGAT CTATTTTGCCGACTTCCCTTATCTACATTATTCTATTGACCAGAGGCTGATCACCTTGGGGACCTGATGCGGATATTGGTACAGTTGGGTACAAGACTTT TTCAATCCCTTGGTTTTTCAAGGATCCTCAAGGACACACCAGACTTTACAGAGGTGTAAAGCTCTACCAATCATTAAACCCTATCTCCAAATAATTTGCT TCCAGGGTTTCAGATTGTTAAGGAGAAAAGAAAACTCTTCCTGGGGCCCTTGCAGATGTCACCAAGTTCATATATGTTACCATTCAAAATCTGTATCCCA GTTGTAGAATTTTAACTACATTCCCTTTCAATAGGTGATGCTAACAAGAGCATACTTTAAAACAGACTTTCCCTATCTTTTAGGACTGACTAACCCATGT CCAACTACTGTGACCATGGAACCCTTCCCCACTTCAGTCTTCAAGGTTCTCACTTGAATATTTGCTACTTCCACCAAGATCTGCACTAGAGGCTGTTTCA CTCAGCATCACTGCTAAAGCTTCAATACAAAACCCCCACGCCTGCCTACTCATTAATATTTTAAATAATATTAATGGCAAGGTATAGGTAATACACTTAA GCGCCATCCATTTTCAGGGCTAGTTCATTCGGCCGTTGAGTTGTTACACACTCCTTAGCGGATTCCGACTTCCATGGCCACCGTGCGGCTGTCTAGATGA ACTAACACCTTTTGTGGTGTCTCATGAGTGTATATTCTGGCACCTTAACCTTGCGTTCGGTTCATCCCGCATCGCCAGTTCTGCTTACCAAAAATGGCCC ACTAGAGACTCTCATTCAAATTCCCAAGTTCAATTAAGAAACAGGGGTATCTTACATATTTAAAGTTTGAGAATAGGTTAAGGATGTTTCATCCCCAAGG CCTCTAATCATTCGCTTTACCTCATAAAACTGATGTGAGTCTCTGCTATCCTGAGGGAAACTTCGGCAGGAACCAGCTACTAGATGGTTCGATTAGTCTT TCGCCCCTATACCCAAATTTGACAATCGATTTGCACGTCAGAACTGCTACGAGCTTCCACCAGAGTTTCCTCTGGCTTCACCCTATTCAGGCATAGTTCA CCATCTTTCGGGTCCCAACATACTTGCTCTTACTCAGTACCATCATATAAATAATCTGGACTGGTCAATGGTGCACTTTTTACAGATCCCATTTACATTC ACTTTCATTACGCATAAGGGTTTTAACACCCAAATACTCGCAAGCATGTTAGACTCCTTGGTCCGTGTTTCAAGACGGGTCATTTAAAGCTATTATACCA ACATCCTCAATAAGAAAAACATTAATTTGTTTTACCAAATAAATGGCTTATTGCGATCCTCAATCTTAAACATTGTATCAAATTTAAGGATTATAACACA GCCTAAACTGTAACATCTCCAAAAACCTTCTCCAACATTCAAAGATTGATGTTGGTCTGTTAATCATTAGAATACACCTTTAAAAAAGTTGAACTAACAA TAACAAGTCTAACTTCAAATGTTTCCCTTTTAACAATTTCACGTACTGTTAACTCTCTTTCCAAAGTTCTTTTCATCTTTCCCTCACGGTACTTGTTTGC TATCGGTCTCTCACCTATATTTAGCCTTAGATGGAATTTACCACCCACTTTGAGCTGCATTCCCAAACAACTCGACTCTTAGAGACTGTATCATATAGTA CTACTTATCCATTCCATAAACGGGATTATCACCCTCAATGATGCTGTTTTCCAACAGACTTATAAATGGGGTAGCACAGAAAACAGCTCTTCAAATTACA ACTCGGACTCTAAAAGAGCCAGATTACAAATTTGGGCTTTTCCCTCTTCACTCGCCGTTACTAGGGGAATCCTTGTTAGTTTCTTTTCCTCTGCTTATTG ATATGCTTAAGTTCAGCAGGTAG
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CTCGTTAATCCATTCATGCGCGTCACTAATTAGATGACGAGGCATTTGGCTACCTTAAGAGAGTCATAGTTACTCCCGCCGTTTACCCGCGCTTGGTTGA ATTTCTTCACTTTGACATTCAGAGCACTGGGCAGAAATCACATTGTGTCAACACCATTTTCTGGCCATCACAATGCTATGTTTTAATTAGACAGTCAGAT TCCCCTTGTCCGTTCCAGTTCATAGTTGACAGTTAATTGCTTGCCAGACGCTTTTAAAGGCTGCCCAAAACATCACAATAAAGTTCCATCCAAGTCCGCC ACTAGTTTCCTAGTAGTAGTCCTAGTCAGATCCTTAAAGATCTATTAAGGGCCCAACAAGCCCTGCCCTATGAGCCAATCCTTTTCCCTAAGTTACGGAT CTATTTTGCCGACTTCCCTTATCTACATTATTCTATTGACCAGAGGCTGATCACCTTGGGGACCTGATGCGGATATTGGTACAGTTGGGTACAAGACTTT TTCAATCCCTTGGTTTTTCAAGGATCCTCAAGGACACACCAGACTTTACAGAGGTGTAAAGCTCTACCAATCATTAAACCCTATCTCCAAATAATTTGCT TCCAGGGTTTCAGATTGTTAAGGAGAAAAGAAAACTCTTCCTGGGGCCCTTGCAGATGTCACCAAGTTCATATATGTTACCATTCAAAATCTGTATCCCA GTTGTAGAATTTTAACTACATTCCCTTTCAATAGGTGATGCTAACAAGAGCATACTTTAAAACAGACTTTCCCTATCTTTTAGGACTGACTAACCCATGT CCAACTACTGTGACCATGGAACCCTTCCCCACTTCAGTCTTCAAGGTTCTCACTTGAATATTTGCTACTTCCACCAAGATCTGCACTAGAGGCTGTTTCA CTCAGCATCACTGCTAAAGCTTCAATACAAAACCCCCACGCCTGCCTACTCATTAATATTTTAAATAATATTAATGGCAAGGTATAGGTAATACACTTAA GCGCCATCCATTTTCAGGGCTAGTTCATTCGGCCGTTGAGTTGTTACACACTCCTTAGCGGATTCCGACTTCCATGGCCACCGTGCGGCTGTCTAGATGA ACTAACACCTTTTGTGGTGTCTCATGAGTGTATATTCTGGCACCTTAACCTTGCGTTCGGTTCATCCCGCATCGCCAGTTCTGCTTACCAAAAATGGCCC ACTAGAGACTCTCATTCAAATTCCCAAGTTCAATTAAGAAACAGGGGTATCTTACATATTTAAAGTTTGAGAATAGGTTAAGGATGTTTCATCCCCAAGG CCTCTAATCATTCGCTTTACCTCATAAAACTGATGTGAGTCTCTGCTATCCTGAGGGAAACTTCGGCAGGAACCAGCTACTAGATGGTTCGATTAGTCTT TCGCCCCTATACCCAAATTTGACAATCGATTTGCACGTCAGAACTGCTACGAGCTTCCACCAGAGTTTCCTCTGGCTTCACCCTATTCAGGCATAGTTCA CCATCTTTCGGGTCCCAACATACTTGCTCTTACTCAGTACCATCATATAAATAATCTGGACTGGTCAATGGTGCACTTTTTACAGATCCCATTTACATTC ACTTTCATTACGCATAAGGGTTTTAACACCCAAATACTCGCAAGCATGTTAGACTCCTTGGTCCGTGTTTCAAGACGGGTCATTTAAAGCTATTATACCA ACATCCTCAATAAGAAAAACATTAATTTGTTTTACCAAATAAATGGCTTATTGCGATCCTCAATCTTAAACATTGTATCAAATTTAAGGATTATAACACA GCCTAAACTGTAACATCTCCAAAAACCTTCTCCAACATTCAAAGATTGATGTTGGTCTGTTAATCATTAGAATACACCTTTAAAAAAGTTGAACTAACAA TAACAAGTCTAACTTCAAATGTTTCCCTTTTAACAATTTCACGTACTGTTAACTCTCTTTCCAAAGTTCTTTTCATCTTTCCCTCACGGTACTTGTTTGC TATCGGTCTCTCACCTATATTTAGCCTTAGATGGAATTTACCACCCACTTTGAGCTGCATTCCCAAACAACTCGACTCTTAGAGACTGTATCATATAGTA CTACTTATCCATTCCATAAACGGGATTATCACCCTCAATGATGCTGTTTTCCAACAGACTTATAAATGGGGTAGCACAGAAAACAGCTCTTCAAATTACA ACTCGGACTCTAAAAGAGCCAGATTACAAATTTGGGCTTTTCCCTCTTCACTCGCCGTTACTAGGGGAATCCTTGTTAGTTTCTTTTCCTCTGCTTATTG ATATGCTTAAGTTCAGCAGGTAG
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