Morphological and histochemical investigation of the response ofOlea europaealeaves to fungal attack bySpilocaea oleagina

2017 ◽  
Vol 66 (8) ◽  
pp. 1239-1247 ◽  
Author(s):  
B. Lanza ◽  
A. M. Ragnelli ◽  
M. Priore ◽  
P. Aimola
Keyword(s):  
Histochemical Investigation ◽  
Fungal Attack

scholarly journals <i>Cabochonicus,</i> a new genus for species of gemmate megaspores previously referred to <i>Verrutriletes</i>

1987 ◽  
Vol 6 (1) ◽  
pp. 65-75 ◽  
Author(s):  
D. J. Batten ◽  
D. J. P. Ferguson
Keyword(s):  
Type Species ◽  
New Genus ◽  
Ultrastructural Studies ◽  
Fungal Attack ◽  
The Subject

Abstract. Several species of Mesozoic megaspores that are sculptured with globular, often gemmate elements are sufficiently distinct from most verrucate forms to warrant their inclusion in a genus other than Verrutriletes. Cabochonicus is erected to accommodate them with C. (al. Verrutriletes) carbunculus as the type species. The form of the gemmae, which have a glossy appearance, has been the subject of past debate with one interpretation being that they are the manifestation of fungal attack rather than sculpture. Evidence from ultrastructural studies suggests, however, that they are exinal excrescences. The spores are assumed to be the products of heterosporous lycopods and the structure of the wall layers may indicate selaginellalean affinities. The plants are more likely to have been terrestrial than aquatic or semi-aquatic.

Experiments with Cysts of the Potato Eelworm (Heterodera schachtii) of Different Ages

1938 ◽  
Vol 16 (2) ◽  
pp. 67-76 ◽  
Author(s):  
Mary T. Franklin
Keyword(s):  
Host Plant ◽  
Cyst Wall ◽  
Good Yield ◽  
Potato Crop ◽  
Heterodera Schachtii ◽  
Soil Conditions ◽  
Fungal Attack ◽  
Large Numbers ◽  
Different Ages

One of the peculiarities of the eelworm Heterodera schachtii which makes it a very difficult parasite to control is the length of time it can survive in a dormant condition in the soil. In this state the embryonated eggs are protected by the resistant cyst wall, and, in the case of the potato strain of the eelworm, the larvae only hatch in large numbers in the presence of the host plant. On account of this property, land infected with the parasite remains infected even though the host plant is not grown. It is however well known that if “potato sick” land is rested from potatoes for a few years it is then sometimes possible to grow a potato crop giving a fairly good yield and showing little or no sign of sickness in the overground parts. In these cases, however, it is often found that the roots of the plants are heavily infested with eelworm. These and other observations have led to suggestions that other factors may be associated with H. schachtii in giving rise to the condition known as “potato-sickness.” Such factors may be due wholly or in part to soil conditions, climate, fungal attack or the time of attack by the eelworm. In some cases more than one factor may operate in addition to the nematode, and in different cases it is probable that different factors come into play.

Histochemical investigation of cervical intraepithelial neoplasia

1987 ◽  
Vol 240 (2) ◽  
pp. 75-79 ◽  
Author(s):  
B. Nilson ◽  
B. Andersch ◽  
G. Hansson ◽  
G. Heyden
Keyword(s):  
Cervical Intraepithelial Neoplasia ◽  
Intraepithelial Neoplasia ◽  
Histochemical Investigation

Cholinergic and catecholaminergic afferents to the olfactory bulb in the Hamster: A neuroanatomical, biochemical, and histochemical investigation

1981 ◽  
Vol 203 (3) ◽  
pp. 495-514 ◽  
Author(s):  
Foteos Macrides ◽  
Barry J. Davis ◽  
William M. Youngs ◽  
N. Suzan Nadi ◽  
Frank L. Margolis
Keyword(s):  
Olfactory Bulb ◽  
Histochemical Investigation

scholarly journals The Caryopsis of Red-Grained Rice Has Enhanced Resistance to Fungal Attack

2018 ◽  
Vol 4 (2) ◽  
pp. 71 ◽  
Author(s):  
Alberto Gianinetti ◽  
Franca Finocchiaro ◽  
Fabio Maisenti ◽  
Dailly Kouongni Satsap ◽  
Caterina Morcia ◽  
...  
Keyword(s):  
Enhanced Resistance ◽  
Fungal Attack
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