Results 131 to 140 of about 538 (167)
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Water-Wisteria as an ideal plant to study heterophylly in higher aquatic plants

Plant Cell Reports, 2017
The semi-aquatic plant Water-Wisteria is suggested as a new model to study heterophylly due to its many advantages and typical leaf phenotypic plasticity in response to environmental factors and phytohormones. Water-Wisteria, Hygrophila difformis (Acanthaceae), is a fast growing semi-aquatic plant that exhibits a variety of leaf shapes, from simple ...
Jingjing Yang, Gaojie Li, Hongwei Hou
exaly   +3 more sources

The Functional Significance and Fitness Consequences of Heterophylly

International Journal of Plant Sciences, 1999
Asymmetry along the longitudinal axis of a plant can be created by heterophylly, the production of leaves of different size or shape by an individual. Heterophylly is a widespread phenomenon ranging in degree from subtle variation in leaf size to striking differences in the size and shape of leaves produced by a single plant.
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Heterophylly in Ranunculus flabellaris Raf.: The Effect of Abscisic Acid [PDF]

open access: yesAnnals of Botany, 1985
Ranunculus flabellaris Raf., the yellow water crowfoot, exhibits striking heterophylly between submerged and terrestrial leaves. Leaves produced under water are highly divided with numerous narrow lobes and deep sinuses, whereas terrestrial leaves have few broad lobes and shallow sinuses.
Roger F Horton
exaly   +2 more sources

CYCLIC HETEROPHYLLY IN SYNGONIUM (ARACEAE)

American Journal of Botany, 1987
Species in the genus Syngonium germinate on the ground and mature on the trunks of the trees. These vines consist of relatively unbranched shoots which grow through the forest for considerable distances both horizontally and vertically. In the three species of this study, the shape of the segment, measured as internode diam/length, falls into two ...
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Photosynthetic implications of heterophylly in Batrachium peltatum (Schrank) Presl

Aquatic Botany, 1993
Abstract We examined the photosynthetic performance of the three leafs forms (filamentous aerial, laminar floating and filamentous submersed leaves) of the amphibious stream macrophyte Batrachium peltatum (Schrank) Presl in relation to differences in morphology/anatomy and chemical composition of the leaves.
Nielsen, S.L., Sand-Jensen, Kaj
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The Concept of Hormonal Heterophylly

1974
The idea that hormones elaborated in invertebrates have measurable effects on the function and appearance of tissues in vertebrates originated during the time when crude extracts containing invertebrate hormones were first available. The extractions of active material were made possible through identification of fractions by a number of respective ...
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BIOCHEMICAL HETEROPHYLLY AND FLAVONOID EVOLUTION IN NORTH AMERICAN POTAMOGETON (POTAMOGETONACEAE)

American Journal of Botany, 1990
Morphologically heterophyllous species of Potamogeton also commonly display biochemical heterophylly with respect to flavonoid compounds. Generally, floating leaves contain an assortment of flavonoids, whereas submersed leaves often exhibit reduced flavonoid profiles. In strictly submersed (homophyllous) species, two patterns occur.
Donald H, Les, Donna J, Sheridan
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Shoot Growth and Heterophylly in Ginkgo biloba

Botanical Gazette, 1970
Ginkgo biloba resembles other woody plants with long and short shoots in having variable leaves, and this variability in shape and other characteristics is closely related to the specialization of the shoots. The unlobed or bilobed early leaves of short shoots are preformed in the winter bud, and their nearly synchronous expansion in the spring is not ...
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Developmental heterophylly in the genus Heteranthera (Pontederiaceae)

Aquatic Botany, 1988
Abstract Plants of 8 species were grown from seed in 2 water depths to investigate heterophylly within the genus Heteranthera . All species developed submersed sessile leaves. Subsequent development varied among species in: (1) the number of sessile leaves; (2) petiole length, blade length, blade width and length to width ratio of petiolate leaves; (
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Effects of ethylene and abscisic acid upon heterophylly in Ludwigia arcuata (Onagraceae)

Planta, 2003
In this study, we examined the effects of ethylene and abscisic acid (ABA) upon heterophyllous leaf formation of Ludwigia arcuata Walt. Treatment with ethylene gas resulted in the formation of submerged-type leaves on terrestrial shoots of L. arcuata, while treatments with ABA induced the formation of terrestrial-type leaves on submerged shoots ...
Asuka, Kuwabara   +3 more
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