Microsphaeran.

Brit.

/ˈmʌɪkrə(ʊ)ˌsfɪərə/, U.S.

/ˈmaɪkroʊˌsfɪrə/

Origin: A borrowing from French. Etymon: French microsphaera.

Etymology: < French microsphaera (in sense 1, L. H. Léveillé 1851, in Ann. des Sci. Nat.: Bot. 15 381; in sense 2, E. Metchnikoff Leçons sur la pathol. comparée de l'inflammation (1892) ii. 21) < micro- micro- comb. form + classical Latin sphaera (see sphere n.).

1. A genus of plant-parasitic fungi (family Erysiphaceae) that includes the causative agents of European gooseberry mildew, oak mildew, and various other powdery mildews.

ΘΚΠ

the world > plants > particular plants > plants perceived as weeds or harmful plants > poisonous or harmful plants > harmful or parasitic fungi > [noun] > causing disease in plants

bunt1800

Sclerotium1813

Alternaria1834

oidium1836

Septoria1836

conk1851

Rhizopus1854

snow-mould1855

vine-mildew1855

vine-fungus1857

bramble-brand1867

Microsphaera1871

wood-fungus1876

sphacelia1879

blue mould1882

orange fungus1882

cluster-cup1883

hop-mildew1883

powdery mildew1886

cladosporium1887

shot-hole fungus1897

verdet1897

wound-fungus1897

fusarium1907

verticillium1916

rhynchosporium1918

coral-spot1923

blind-seed fungus1939

sclerotinia1950

1871 M. C. Cooke Handbk. Brit. Fungi II. 648 Gen. 281. Microsphæria [sic], Lev.

1887 Amer. Naturalist 21 264 Possibly Mucor may come into common use, but Entomophthora never will; nor will Phytophthora,..Microsphæra, Erysiphe, etc.

1900 Science 30 Nov. 852/2 The fifty-eight names under Microsphæra, are reduced to nineteen.

1924 Trans. Royal Scot. Arboricult. Soc. 36 92 Perithecia..proved, on examination, to belong to the genus Microsphaera.

1939 E. A. Bessey Text-bk. Mycol. (new ed.) ix. 223 From the outer cells of the cortex arise the characteristic appendages..straight and once or more dichotomously forked at the apex in Microsphaera and Podosphaera.

1953 F. T. Brooks Plant Dis. (ed. 2) ix. 133 Blumer considers that oak mildew in the United States is caused by a different species of Microsphaera.

1988 I. M. Smith et al. European Handbk. Plant Dis. x. 262/2 A number of other Microsphaera species occur on woody plants.

†2. A tiny round organism thought to infect amoebae. Obsolete. rare.

ΚΠ

1896 T. C. Allbutt et al. Syst. Med. I. 57 Metschnikoff has observed..the amoebae, which ingests and becomes the host of a minute rounded form, the Microsphæra.

This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022).

单词	microsphaera
释义	Microsphaeran. Brit. /ˈmʌɪkrə(ʊ)ˌsfɪərə/, U.S. /ˈmaɪkroʊˌsfɪrə/ Origin: A borrowing from French. Etymon: French microsphaera. Etymology: < French microsphaera (in sense 1, L. H. Léveillé 1851, in Ann. des Sci. Nat.: Bot. 15 381; in sense 2, E. Metchnikoff Leçons sur la pathol. comparée de l'inflammation (1892) ii. 21) < micro- micro- comb. form + classical Latin sphaera (see sphere n.). 1. A genus of plant-parasitic fungi (family Erysiphaceae) that includes the causative agents of European gooseberry mildew, oak mildew, and various other powdery mildews. ΘΚΠ the world > plants > particular plants > plants perceived as weeds or harmful plants > poisonous or harmful plants > harmful or parasitic fungi > [noun] > causing disease in plants bunt1800 Sclerotium1813 Alternaria1834 oidium1836 Septoria1836 conk1851 Rhizopus1854 snow-mould1855 vine-mildew1855 vine-fungus1857 bramble-brand1867 Microsphaera1871 wood-fungus1876 sphacelia1879 blue mould1882 orange fungus1882 cluster-cup1883 hop-mildew1883 powdery mildew1886 cladosporium1887 shot-hole fungus1897 verdet1897 wound-fungus1897 fusarium1907 verticillium1916 rhynchosporium1918 coral-spot1923 blind-seed fungus1939 sclerotinia1950 1871 M. C. Cooke Handbk. Brit. Fungi II. 648 Gen. 281. Microsphæria [sic], Lev. 1887 Amer. Naturalist 21 264 Possibly Mucor may come into common use, but Entomophthora never will; nor will Phytophthora,..Microsphæra, Erysiphe, etc. 1900 Science 30 Nov. 852/2 The fifty-eight names under Microsphæra, are reduced to nineteen. 1924 Trans. Royal Scot. Arboricult. Soc. 36 92 Perithecia..proved, on examination, to belong to the genus Microsphaera. 1939 E. A. Bessey Text-bk. Mycol. (new ed.) ix. 223 From the outer cells of the cortex arise the characteristic appendages..straight and once or more dichotomously forked at the apex in Microsphaera and Podosphaera. 1953 F. T. Brooks Plant Dis. (ed. 2) ix. 133 Blumer considers that oak mildew in the United States is caused by a different species of Microsphaera. 1988 I. M. Smith et al. European Handbk. Plant Dis. x. 262/2 A number of other Microsphaera species occur on woody plants. †2. A tiny round organism thought to infect amoebae. Obsolete. rare. ΚΠ 1896 T. C. Allbutt et al. Syst. Med. I. 57 Metschnikoff has observed..the amoebae, which ingests and becomes the host of a minute rounded form, the Microsphæra. This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022). < n.1871
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