Results 151 to 160 of about 2,886 (191)

Induction of Haustorium Development by Sphaeropsidones in Radicles of the Parasitic WeedsStrigaandOrobanche. A Structure–Activity Relationship Study

Journal of Agricultural and Food Chemistry, 2016
Crop attack by parasitic weeds such as Striga and Orobanche occurs through developmental processes triggered by host chemodetection. Seeds of those weed species remain dormant in the soil until germination is triggered by host root exudates.
Antonio Evidente, Diego Rubiales, Mónica Fernández-Aparicio   +2 more
exaly   +2 more sources

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Studies on the haustorium of Castilleja (Scrophulariaceae). I. The upper haustorium

Canadian Journal of Botany, 1973
The portion of the Castilleja secondary haustorium external to host tissues was investigated at the light- and electron-microscopic levels. One or more haustoria may be present along a single lateral root; however, primary roots of Castilleja may also have haustoria. A localized development of root hairs usually precedes haustorial formation.
David R. Dobbins, Job Kuijt
openaire   +1 more source

Microbiome associated with the Haustorium of Epifagus virginiana.

Proceedings of the West Virginia Academy of Science, 2021
Epifagus virginana is a holoparsitic plant whose only host is the American Beech tree, Fagus grandifolia. Currently, little is known about the specific mechanism used by Epifagus to colonize the tree. It is thought that lignin-like or lignin degradation by-products are needed to signal the colonization process for other members of Orobanchaceae ...
Jasmine Lafferty, Aida Jimenez Esquilin, Desiree Evans   +2 more
openaire   +1 more source

The Initiation of the Secondary Haustorium in Alectra vogelii Benth

Annals of Botany, 1982
F I O Nwoke
exaly   +2 more sources

Graniferous tracheary elements in the haustorium of the santalaceae

Planta, 1978
Haustoria of santalaceous root parasites examined have unusual tracheary elements containing granules within their lumina. Benson (1910) thought the granules were starch and that the cells also contained an enucleate protoplast. She believed the cells combined the functions of phloem and xylem conduits and so named them "phloeotracheides" (sic).
B A, Fineran, B E, Juniper, S, Bullock
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ANATOMY AND FINE STRUCTURE OF THE MISTLETOE HAUSTORIUM (PHTHIRUSA PYRIFOLIA). I. DEVELOPMENT OF THE YOUNG HAUSTORIUM

American Journal of Botany, 1974
The anatomy and fine structure of the young primary haustorium of Phthirusa pyrifolia (H.B.K.) Eichl. were studied before penetration into the host. The simple internal organization (epidermis, hypodermis, and core parenchyma) which characterizes the radicular disc at germination becomes ...
David R. Dobbins, Job Kuijt
openaire   +1 more source

The Haustorium, a Specialized Invasive Organ in Parasitic Plants

Annual Review of Plant Biology, 2016
Parasitic plants thrive by infecting other plants. Flowering plants evolved parasitism independently at least 12 times, in all cases developing a unique multicellular organ called the haustorium that forms upon detection of haustorium-inducing factors derived from the host plant.
Satoko, Yoshida, Songkui, Cui, Yasunori, Ichihashi, Ken, Shirasu   +3 more
openaire   +2 more sources

The haustorium and the chemistry of host recognition in parasitic angiosperms

Journal of Chemical Ecology, 1986
Two parasitic angiosperms,Agalinis purpurea (Scrophulariaceae) andStriga asiatica (Scrophulariaceae), are compared as to the chemical recognition events involved in host selection.Agalinis is a hemiparasite which can mature to seed-set without a host, whereasStriga is a holoparasite and survives for only a very limited time without a host.
M, Chang, D G, Lynn
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Anatomical Studies of Haustorium Ontogeny and the Remarkable Mode of Penetration of the Haustorium inNuytsiafloribunda(Labill.) R. Br.

Botanica Acta, 1989
AbstractThe development and structure of secondary haustoria ofNuytsia floribundaare described and compared with other Santalalean haustoria.After establishing contact with the host root, cortical folds of the haustorium grow around the root in separate directions and fuse forming a ring around it.
Christine Beyer, W. Forstreuter, H. Chr Weber   +2 more
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Haustorium Initiation and Early Development

2013
The haustoria of the Orobanchaceae are formed in response to chemical and physical stimuli provided by host roots. Several quinones and phenols have been identified that induce haustorium development, suggesting that parasites recognise a multiplicity of molecules in the rhizosphere associated with host roots.
Pradeepa C. G. Bandaranayake, John I. Yoder   +1 more
openaire   +1 more source