Results 161 to 170 of about 2,622 (194)

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
openaire   +2 more sources

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

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
openaire   +1 more source

The structure and development of the haustorium in parasitic Scrophulariaceae*

Botanical Journal of the Linnean Society, 1975
The structure and development of roots and haustoria in 37 species of parasitic Scrophulariaceae was studied using light microscopy. The mature haustorium consists of two regions: the swollen “body” and the parent root, which resembles non-haustorial roots in structure. The body arises from the parent root and is composed of an epidermis, cortex,
LYTTON J. MUSSELMAN, WILLIAM C. DICKISON
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

Anatomy of the haustorium of Jodina rhombifolia (Santalaceae)

Nordic Journal of Botany, 2004
The structure of the haustorium of Jodina rhombifolia in material from Argentina was analysed. Self‐haustoria and interespeciñc haustoria, the latter on Celtis tala and Scutia buxifolia , were detected.
María Luján Luna, Gabriela Elena Giudice   +1 more
openaire   +1 more source

Phloem in the haustorium of Castilleja (Scrophulariaceae)

Canadian Journal of Botany, 1971
This note documents for the first time the presence of phloem in the haustorium of Castilleja sulphurea Rydb. From electron microscope studies the phloem was found to occur in the internal portion of the endophyte and on the periphery adjacent to cortical cells of the host.
Job Kuijt, David R. Dobbins
openaire   +1 more source

The Host-Haustorium Interface in Powdery Mildews

Australian Journal of Plant Physiology, 1989
The powdery mildew fungi have proven to be a useful model system for studies of the host-parasite interface in biotrophic parasitism. Investigation of the interface has requrred the development of novel experimental approaches, for example the isolation of populations of haustoria in association with other interface components and the chemical and ...
openaire   +1 more source

Permeability of the haustorium-host interface in powdery mildews

Physiological and Molecular Plant Pathology, 1987
Abstract The extent to which uranyl ions and peroxidase permeated haustorial complexes isolated from Pisum sativum infected with Erysiphe pisi was determined by transmission electron microscopy (TEM). Freshly isolated complexes were treated with uranyl acetate, either directly, or after treatment with cell wall degrading enzymes, or with Triton ...
J.L. Gay, J.M. Manners
openaire   +1 more source