sorus

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so·rus

(sôr′əs)

n. pl. so·ri (sôr′ī)

1. A cluster of sporangia borne on the underside of a fern frond. Also called fruit dot.

2. A reproductive structure in certain fungi and lichens.

[New Latin sōrus, from Greek sōros, heap; see teuə- in Indo-European roots.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sorus

(ˈsɔːrəs)

n, pl -ri (-raɪ)

1. (Botany) a cluster of sporangia on the undersurface of certain fern leaves

2. (Botany) any of various similar spore-producing structures in some lichens and fungi

[C19: via New Latin from Greek sōros a heap]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

so•rus

(ˈsɔr əs, ˈsoʊr-)

n., pl. so•ri (ˈsɔr aɪ, ˈsoʊr aɪ)

1. one of the clusters of sporangia on the back of the fronds of ferns.

2. a similar spore mass in certain fungi and lichens.

[1825–35; < New Latin < Greek sōrós heap]

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Noun	1.	sorus - a spore-producing structure in certain lichens and fungi reproductive structure - the parts of a plant involved in its reproduction
	2.	sorus - cluster of sporangia usually on underside of a fern frond reproductive structure - the parts of a plant involved in its reproduction indusium - a membrane enclosing and protecting the developing spores especially that covering the sori of a fern

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soro

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References in periodicals archive ?

Relationship between nitrogen content and sorus formation in the brown alga Laminaria japonica cultivated in southern Hokkaido, Japan.

DIETARY EFFECT OF KELP (SACCHARINA JAPONICA) ON GONAD QUANTITY AND QUALITY IN SEA URCHINS (MESOCENTROTUS NUDUS) COLLECTED FROM A BARREN BEFORE THE FISHING SEASON

Individual plants at maturity stage were scored for the presence/absence of sorus in either ear or tassels as an indicator for susceptibility/resistance, and the mean percent disease incidence using averaged three replicate data was subjected for further analysis, where 0~5% highly resistant, 5~20% resistant, 20~50% susceptible and over 50% highly susceptible.

Pyramiding Resistance Genes to Northern Leaf Blight and Head Smut in Maize

The stalk supports a round structure called a sorus, and the sorus contains spores.

Slime mold farmers

After these "farmer" amoebae aggregate into a slug, they migrate in search of nourishment-and form a fruiting body, or a stalk of dead amoebae topped by a sorus, a structure containing fertile spores.

Like humans, amoebae too pack a lunch before traveling

The spores are produced in sporangia, and many sporangia are grouped together in a region to make up a sorus. The sori are arranged on the underside of the leaf in varying patterns, as shown in Figure 14-2, depending on the species, and are often mistaken for insect eggs.

Chapter 14: Diversity: vascular plants

It is also useful in abdominal disorders, ben-ben and sorus, head ache, joint pains, leucoderma, liver disorders,paralysis, ulcers etc.

Phytochemical studies on the deeds of Celastrus paniculata, Willd

Dahlen (381-408) beschaftigt sich mit der Methode und Hermeneutik des zeitgenossischen Philosophen 'Abdol-Karim Sorus als Beispiel fur die Auseinandersetzung des Islam mit der 'westlichen Moderne'; und C.

Fereydun Vahman and Claus V. Pedersen (eds.): Religious Texts in Iranian Languages. Symposium held in Copenhagen May 2002

cotyledon damping off direct-seeding emergence etiolation [F.sub.1] hybrid geotropism harden-off hybrid imbibe imbibition mycorrhizae open-pollination pasteurization prothallus radicle scarification sorus (sori) stratification viability

Chapter 3: seed propagation

(15) See, for example, Alina Cala, Asymilacja Zydow w Krolestwie Polskim (1864-1897): Postawy, konflikty, stereotypy (Warsaw: PIW, 1989); Marian Fuchs, Zydzi w Warszawie: Zycie codzienne, wydarzenia, ludzie (Poznan: Sorus, 1992); Jerzy Tomaszewski, Najnowsze dzieje Zydow w Polsce w zarysie (do 1950 roku) (Warsaw: PWN, 1993); Marek Rostworowski, Zydzi w Polsce: Obraz i slowo (Warsaw: Interpress, 1993); Andrzej Zbikowski, Zydzi krakowscy i ich gmina w latah 1869-1919 (Warsaw: DiG, 1994); and Marcin Wodzinski, Haskalah and Hasidism in the Kingdom of Poland: A History of Conflict (Portland, OR: Littman Library of Jewish Civilization, 2005 [orig.

The "Jewish question" in Eastern Europe

Sori in dense groups in congested partial inflorescences (witches' brooms); long cylindrical, curved; 0.7 x 15-40 mm; a single sorus has one central columella of host tissue and an early rupturing peridium.