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geotropic
geotropic, a. Bot. (dʒiːəʊˈtrɒpɪk) [f. Gr. γεω- geo- + τροπικ-ός, f. τροπή turning.] Pertaining to, characterized by, or of the nature of, geotropism.1875 Bennett & Dyer Sachs' Bot. 756 Internodes with an upward geotropic curvature. 1880 C. & F. Darwin Movem. Pl. 81 As soon as the confluent petioles...
Oxford English Dictionary
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Bulbophyllum rosemarianum
. & Rchb.f., but different in having erect, non-geotropic leaves, truncate-angulate, acute dorsal sepal, broad-based, oblique, falcate-aristate petal and
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-tropic
-tropic, suffix (ˈtrɒpɪk, ˈtrəʊpɪk) [f. Gr. τροπή turning (n.) + -ic.] Forming adjs. with the senses: (a) ‘turning or attracted towards’, as in geotropic, heliotropic, sympathicotropic adjs.; (b) ‘affecting’, as in neurotropic, psychotropic adjs. (in epithets of hormones used interchangeably with -t...
Oxford English Dictionary
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Auriscalpium vulgare
Because the second (cap formation) and third (spine formation) geotropic responses overlap, there is a brief period where two different geotropic responses These geotropic transitions help ensure that the final alignment results in optimum spore dispersal.
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nyctitropic
nyctitropic, a. Bot. (nɪktɪˈtrɒpɪk) [f. nycti- + Gr. τρόπος turn; cf. geotropic, heliotropic.] Turning in a certain direction at night. So nyctitropism. (See quots.)1880 C. & F. Darwin Movem. Pl. 281 Nyctitropism and nyctitropic, i.e. night-turning, may be applied both to leaves and flowers,..but it...
Oxford English Dictionary
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Rhizobium rhizogenes
vitro or under natural conditions, the hairy root phenotype is observed, which typically includes overdevelopment of a root system that is not completely geotropic
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haptotropism
haptotropism Bot. (ˌhæptəʊˈtrəʊpɪz(ə)m, -ˈtrɒpɪz(ə)m, hæpˈtɒtrəpɪz(ə)m) [ad. G. haptotropismus (L. Errera 1884, in Bot. Zeitung 5 Sept. 564), f. Gr. ἅπτειν to fasten: see tropism.] The phenomenon whereby plant organs, as the tendrils of climbing plants, exhibit tropic movements in response to the st...
Oxford English Dictionary
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Asteroxylon
The possibly procumbent aerial stems arose from a leaf-less rhizome which bore smaller-diameter, positively geotropic root-like branches.
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Commelina benghalensis
Commelina benghalensis produces three types of branches - aerial or negatively geotropic ones, subaerial or diageotropic ones, and underground or positively geotropic ones.
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photonegative
photonegative, a. (fəʊtəʊˈnɛgətɪv) Also with hyphen. [f. photo- 1 + negative a.] 1. Zool. Of an animal: tending to move away from light.1914 S. O. Mast in Biol. Zentralblatt XXXIV. 662 In place of positively or negatively phototropic, geotropic, etc., we might use photo-, geo-, negative or positive,...
Oxford English Dictionary
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Echidnophaga gallinacea
Larvae are negatively phototactic or move away from light and are positively geotropic or are pulled towards the earth.
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Secotioid
Secotioid fungi may or may not have opening caps, but in any case they often lack the vertical geotropic orientation of the hymenophore needed to allow
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Fredrik Elfving
It was titled Studier öpver geotropiska växtdelar ("Studies on geotropic plant parts"). Elfving became a Doctor of Philosophy on 3 February 1880. of the gravitational pull – these are called transversely geotropic.
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Arlette Nougarède
Geotropic reaction, Lentil, Corn
The very first data on the mechanism of the geotropic reaction are acquired - after experiments on starch lysis of statenchyma
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Agave gigantensis
This species is also known for having geotropic flowers.
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