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F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
Gymnosporangium genus of heteroecious plant-pathogenic fungi which alternately infect members of the family Cupressaceae , primarily species in the genus Juniperus (junipers ), and members of the family Rosaceae in the subfamily Amygdaloideae (apples , pears , quinces , shadbush , hawthorns , rowans and their relatives). The common name cedar-apple rusts has been used for these fungi.[1] Dictionary of the Fungi (10th edition, 2008), there was 57 species in the genus.[2] Species Fungorum lists up to 74 species.[3]
In junipers (the primary hosts, see photo), some species form a ball-like gall about 2–4 cm in diameter which produces a set of orange tentacle-like spore tubes called telial horns . These horns expand and have a jelly like consistency when wet. In other species, such as in G. clarvariforme , the telia are produced directly from the bark of the juniper with no obvious gall formation or swelling.[4] basidiospores are released and travel on the wind until they infect an apple, pear, hawthorn or suitable tree.
On the secondary hosts, the fungus produces yellowish depressions on the leaves. It also infects the fruit, which grows whitish tubes like a Medusa head. These are the spore tubes. These aeciospores must then infect a juniper to complete the life cycle. All the types of spores can spread over long distances.[5]
The fungus does not cause serious damage to junipers, but apple and pear trees can suffer serious loss of fruit production due to the effects of the fungus. Although the genus has a worldwide distribution, its impact depends on availability of its two host plant species. Individual species are found in Northern and Central America, Asia, Europe and the Middle East.[5]
Due to the economic impacts of the rusts in some areas where orchards are of commercial importance, some regions have attempted to ban the planting of and/or eradicate the coniferous hosts.[6]
In 2020, the monotypic family Gymnosporangiaceae was proposed to accommodate Gymnosporangium .[7] [8]
Selected species and hosts [ edit ]
Species
Primary host
Secondary host
Common name
Gymnosporangium amelanchieris Juniperus sect. Juniperus
Amelanchier
Gymnosporangium clavariiforme Juniperus sect. Juniperus
Amelanchier, Crataegus, Pyrus
Tongues of Fire[9]
Gymnosporangium clavipes Juniperus
Crataegus, Cydonia
Cedar-quince rust, quince rust[10]
Gymnosporangium confusum Juniperus
Crataegus, Cydonia, Mespilus, Pyrus
Gymnosporangium cornutum Juniperus sect. JuniperusSorbus subgen. Sorbus
Mountain ash juniper rust[10]
Gymnosporangium cupressi Cupressus
Amelanchier
Gymnosporangium dobroznakovii Juniperus sect. Juniperus
Pyrus
Gymnosporangium fusisporum Juniperus sect. Sabina
Cotoneaster
Gymnosporangium gaeumannii Juniperus communis
(not known)
Gymnosporangium globosum Juniperus
Crataegus
Cedar-hawthorn rust, American hawthorn rust[10] [11]
Gymnosporangium gracile Juniperus
Amelanchier, Crataegus, Cydonia
Gymnosporangium harknessianum Juniperus
Amelanchier
Gymnosporangium inconspicuum Juniperus
Amelanchier
Gymnosporangium juniperi-virginianae Juniperus
Malus
Cedar-apple rust[10]
Gymnosporangium kernianum Juniperus
Amelanchier
Kern's pear rust[11]
Gymnosporangium libocedri Gymnotelium blasdaleanum , Pucciniaceae family)
Calocedrus
Amelanchier
Pacific Coast pear rust,[11] [10]
Gymnosporangium malyi (not known)
Crataegus
Gymnosporangium multiporum Juniperus
(not known)
Gymnosporangium nelsonii Juniperus
Amelanchier
Witches broom rust,[10] [11]
Gymnosporangium nidus-avis Juniperus sect. Sabina
Crataegus, Cydonia, Malus
Juniper witches' broom rust[10]
Gymnosporangium sabinae Juniperus
Pyrus, Malus, Crataegus
Pear rust, European pear rust, or pear trellis rust[10]
Gymnosporangium torminalis-juniperinum Juniperus sect. Juniperus
Sorbus torminalis
Gymnosporangium tremelloides Juniperus sect. Juniperus
Cydonia, Malus, Sorbus
Gymnosporangium yamadae Juniperus
Malus
Japanese apple rust[12]
Full list of species [ edit ]
As accepted by Species Fungorum;[3]
Gymnosporangium annulatum Y.M. Liang & B. Cao (2020)
Gymnosporangium asiaticum Miyabe ex G. Yamada (1904)
Gymnosporangium atlanticum Guyot & Malençon (1957)
Gymnosporangium aurantiacum Syd. & P. Syd. (1904)
Gymnosporangium bermudianum Earle (1893)
Gymnosporangium bethelii F. Kern (1907)
Gymnosporangium biseptatum Ellis (1874)
Gymnosporangium clavariiforme (Wulfen) DC. (1805)
Gymnosporangium clavipes Cooke & Peck (1873)
Gymnosporangium confusum Plowr. (1889)
Gymnosporangium connersii Parmelee (1965)
Gymnosporangium corniculans F. Kern (1910)
Gymnosporangium corniforme Sawada (1928)
Gymnosporangium cornutum (Pers.) Arthur (1910)
Gymnosporangium cunninghamianum Barclay (1890)
Gymnosporangium cupressi Long & Goodd. (1921)
Gymnosporangium davisii F. Kern (1908)
Gymnosporangium dobrozrakovae Mitrof. (1969)
Gymnosporangium echinulatum (Seung K. Lee & Kakish.) Y.M. Liang & B. Cao (2020)
Gymnosporangium effusum F. Kern (1911)
Gymnosporangium exiguum F. Kern (1908)
Gymnosporangium exterum Arthur & F. Kern (1910)
Gymnosporangium floriforme Thaxt. (1908)
Gymnosporangium formosanum Hirats. f. & Hashioka (1935)
Gymnosporangium fraternum F. Kern (1911)
Gymnosporangium fusisporum E. Fisch. (1918)
Gymnosporangium gaeumannii H. Zogg (1949)
Gymnosporangium gjaerumii Korbonsk. & Azbukina (1997)
Gymnosporangium globosum (Farl.) Farl. (1886)
Gymnosporangium gracile Pat. (1902)
Gymnosporangium gracilens (Peck) F. Kern & Bethel (1911)
Gymnosporangium harknessianum (Ellis & Everh. ex F. Kern) F. Kern (1911)
Gymnosporangium hemisphaericum Hara (1917)
Gymnosporangium huanglongense Y.M. Liang & B. Cao (2016)
Gymnosporangium hyalinum (Cooke) F. Kern (1911)
Gymnosporangium inconspicuum F. Kern (1907)
Gymnosporangium juniperi-virginianae Schwein. (1822)
Gymnosporangium kanasense P. Zhao & L. Cai (2020)
Gymnosporangium kernianum Bethel (1911)
Gymnosporangium lachrymiforme P. Zhao & L. Cai (2020)
Gymnosporangium lianhuaense Y.M. Liang, B. Cao & S.Q. Tao (2020)
Gymnosporangium meridissimum Crowell (1940)
Gymnosporangium mespili (DC.) F. Kern (1911)
Gymnosporangium minus Crowell (1940)
Gymnosporangium miyabei G. Yamada & I. Miyake (1908)
Gymnosporangium monticola H.Y. Yun (2009)
Gymnosporangium multiporum F. Kern (1909)
Gymnosporangium nelsonii Arthur (1901)
Gymnosporangium nidus-avis Thaxt. (1891)
Gymnosporangium niitakayamense Y.M. Shen (2018)
Gymnosporangium nipponicum G. Yamada (1935)
Gymnosporangium orientale P. Syd. & Syd. (1912)
Gymnosporangium padmarense Balf.-Browne (1955)
Gymnosporangium paraphysatum Vienn.-Bourg. (1961)
Gymnosporangium pleoporum Y.M. Liang & B. Cao (2020)
Gymnosporangium przewalskii Y.M. Liang & B. Cao (2017)
Gymnosporangium raphiolepidis (Syd.) T. Kasuya, K. Hosaka & Kakish. (2020)
Gymnosporangium sabinae (Dicks.) G. Winter (1884)
Gymnosporangium shennongjiaense P. Zhao & L. Cai (2020)
Gymnosporangium shiraianum Hara (1919)
Gymnosporangium sorbi (Arthur) F. Kern (1911)
Gymnosporangium spinulosum P. Zhao & L. Cai (2020)
Gymnosporangium taianum F. Kern (1964)
Gymnosporangium tiankengense P. Zhao & L. Cai (2020)
Gymnosporangium tianschanicum Z.Y. Zhao & J.Y. Zhuang (2007)
Gymnosporangium torminali-juniperini E. Fisch. (1910)
Gymnosporangium trachysorum F. Kern (1910)
Gymnosporangium tremelloides R. Hartig (1882)
Gymnosporangium tsingchenense C.T. Wei (1947)
Gymnosporangium turkestanicum Tranzschel (1939)
Gymnosporangium unicorne H.Y. Yun (2009)
Gymnosporangium vauqueliniae Long & Goodd. (1939)
Gymnosporangium yamadae Miyabe ex G. Yamada (1904)
References [ edit ]
^ a b "Species Fungorum - Search Page - Gymnosporangium" . www.speciesfungorum.org . Retrieved 17 August 2023 .
^ Brand, Bert; Brand, Gill; Shattock, Richard (October 2006). "Sorting out Gymnosporangium species – the aecial stage" . Field Mycology . 7 4 ): 123–127. doi :10.1016/S1468-1641(10 )60574-9
^ a b "Diagnostics - Gymnosporangium spp. (non-European)". OEPP/EPPO Bulletin . 36
^ "Cedar Apple Rust - Plant of the Week" . Archived from the original on 2006-09-26. Retrieved 2006-11-17 .
^ Zhao, P.; Qi, X.; Crous, P.; Duan, W.; Cai, L. (2020). "Gymnosporangium species on Malus: species delineation, diversity and host alternation". Persoonia . 45 1 ): 68–100. doi :10.3767/persoonia.2020.45.03 . hdl :2263/80904
^ Wijayawardene, Nalin; Hyde, Kevin; Al-Ani, Laith Khalil Tawfeeq; Somayeh, Dolatabadi; Stadler, Marc; Haelewaters, Danny; et al. (2020). "Outline of Fungi and fungus-like taxa" . Mycosphere . 11 doi :10.5943/mycosphere/11/1/8 hdl :10481/61998
^ Gymnosporangium cornutum/clavariforme
^ a b c d e f g h FullFungi List , Widely Prevalent Fungi of the United States
^ a b c d Diseases of Pear , APS
^ Gymnosporangium yamadae Archived 2015-06-04 at the Wayback Machine , Data sheets on Quaranteen Pests
Other sources [ edit ]
Phillips, D.H., & Burdekin, D.A. (1992). Diseases of Forest and Ornamental Trees . Macmillan.
Scharpf, R.F., ed. (1993). Diseases of Pacific Coast Conifers. USDA Forest Service Agricultural Handbook 521.
External links [ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Gymnosporangium&oldid=1193759296 " C a t e g o r i e s : ● B a s i d i o m y c o t a g e n e r a ● P u c c i n i a l e s H i d d e n c a t e g o r i e s : ● W e b a r c h i v e t e m p l a t e w a y b a c k l i n k s ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n m a t c h e s W i k i d a t a ● A r t i c l e s w i t h ' s p e c i e s ' m i c r o f o r m a t s ● C o m m o n s c a t e g o r y l i n k f r o m W i k i d a t a ● A r t i c l e s w i t h J 9 U i d e n t i f i e r s ● A r t i c l e s w i t h N D L i d e n t i f i e r s
● T h i s p a g e w a s l a s t e d i t e d o n 5 J a n u a r y 2 0 2 4 , a t 1 3 : 4 2 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
