Results 171 to 180 of about 2,622 (194)
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EMBRYOLOGY AND DEVELOPMENT OF THE ENDOSPERM HAUSTORIUM OF ARCEUTHOBIUM DOUGLASII

American Journal of Botany, 1965
Arceuthobium douglasii develops a dome‐like structure, the ovarian papilla, in which 2 megasporocytes are formed. The papilla is not a true ovule, for no integuments are formed, and it is forced aside by the developing endosperm. Megasporocytes are differentiated in the spring, but meiosis does not occur until the following spring. A tetrasporic embryo
B. L. Jones, C. C. Gordon
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Functional Structure of the Mature Haustorium

2013
The morphology and functional anatomy of lateral and terminal haustoria are described in this chapter, with emphasis on the patterns of tissue connection with both the host and the parasite, while discussing the possible role of each tissue within the haustorium.
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Haustorium Invasion into Host Tissues

2013
The invasive phase of haustorium development starts when the young haustorium adheres to host roots by means of specialized attachment devices employing adhesive substances. A group of intrusive cells then enzymatically and mechanically penetrate host tissues.
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The Haustorium and the Life Cycles of Parasitic Orobanchaceae

2013
The haustorium is a key organ of all parasitic plants. It penetrates host tissues and serves as the bridge facilitating the withdrawal of part or all of the parasite’s nutritional needs from the conductive systems of host plants. This chapter presents a general description of the haustorium and its functions, and the life cycles of obligate and ...
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MODE OF ATTACHMENT, HAUSTORIUM STRUCTURE, AND HOSTS OF PEDICULARIS CANADENSIS

American Journal of Botany, 1963
Piehl, Martin A. (Botanic Garden, Santa Barbara, Calif.) Mode of attachment, haustorium structure, and hosts of Pedicularis canadensis. Amer. Jour. Bot. 50(10): 978–985. Illus. 1963.—Although long known for European members of the genus, parasitism is documented for the first time for the North American Pedicularis canadensis (Scrophulariaceae) from ...
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Polyploidization of endosperm chalazal haustorium of Rhinanthus serotinus (Scrophulariaceae) [PDF]

open access: possibleActa Biologica Cracoviensia Series Botanica, 2005
The paper reports a study of karyological differentiation of the chalazal endosperm haustorium of Rhinanthus serotinus (Schönheit) Oborny. Polyploidization began soon after the formation of the haustorium cell. The fully differentiated chalazal haustorium is a large elongated cell containing two huge nuclei.
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