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Start Over Coverage 62-68

1. A new nematode, Dichelyne alatae sp. n. (Cucullanidae), from Sillaginopsis panijus (Pisces) of West Bengal, India

Creator:
De, N. C. and Maity, R. N.
Format:
print
Type:
model:internalpart and TEXT
Subject:
Dichelyne, Nematoda, Sillaginopsis panijus, and India
Language:
English
Description:
A new nematode, Dichelyne alatae sp. n., is described on the basis of the worms recovered from the intestine of the whiting, Sillaginopsis panijus (Perciformes: Sillaginidae) from the estuary of the river Hooghly at Kalyani, West Bengal, India. Dichelyne alatae differs from congeners in having a small body size, deirids posterior to the oesophagus, short and wide caudal alae at the level of cloacal opening, unequal, alate spicules, a shield-shaped gubemaculum, a different number of caudal papillae and a conical tail with spines in its distal region.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

6. Photosynthetic responses of Populus przewalski subjected to drought stress

Creator:
Yin, C. Y., Berninger, F., and Li, C. Y.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
chlorophyll fluorescence, dark respiration rate, diurnal changes, gas exchange, intercellular CO2 concentration, stomatal conductance, and water use efficiency
Language:
Multiple languages
Description:
Cuttings of P. przewalski were exposed to two different watering regimes which were watered to 100 and 25 % of field capacity (WW and WS, respectively). Drought stress not only significantly decreased net photosynthetic rate (PN), transpiration rate (E), stomatal conductance (gs), efficiency of photosystem 2 (PS2) (Fv/Fm and yield), and increased intrinsic water use efficiency (WUEi) under controlled optimal conditions, but also altered the diurnal changes of gas exchange, chlorophyll fluorescence, and WUEi. On the other hand, WS also affected the PN-photosynthetically active radiation (PAR) response curve. Under drought stress, PN peak appeared earlier (at about 10:30 of local time) than under WW condition (at about 12:30). At midday, there was a depression in PN for WS plants, but not for WW plants, and it could be caused by the whole microclimate, especially high temperature, low relative humidity, and high PAR. There were stomatal and non-stomatal limitations to photosynthesis. Stomatal limitation dominated in the morning, and low PN at midday was caused by both stomatal and non-stomatal limitations, whereas non-stomatal limitation dominated in the afternoon. In addition, drought stress also increased compensation irradiance and dark respiration rate, and decreased saturation irradiance and maximum net photosynthetic rate. Thus drought stress decreased plant assimilation and increased dissimilation through affected gas exchange, the diurnal pattern of gas exchange, and photosynthesis-PAR response curve, thereby reducing plant growth and productivity. and C. Y. Yin, F. Berninger, C. Y. Li.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

7. Přínos Drahomíry Stránské k výzkumu lidové architektury

Creator:
Válka, Miroslav
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
historical ethnography, traditional folk architecture, and field research
Language:
Czech
Description:
Die Abhandlungen über das Volksbauwesen nehmen in der Bibliographie Drahomíra Stránskás eine bedeutende Stelle ein. Die methodischen Grundvorgänge bei der Forschung eignete sie sich während ihres Aufenthaltes bei dr. Cvijič an, Vertreter der kulturell-geographischen Richtung, der die Siedlung und seine einzelnen Bestandteile in breiten kulturellen Zusammenhängen und ausgedehnten Gebieten verfolgte. Drahomíra Stránská war Vertreterin der Konzeption des Ethnographischen Atlasses der Volksbauten; diese Idee setzte sie intensiv durch. Die methodische Anweisung für die Erforschung des Volksbauwesens eröterte sie im "Příručka lidopisného pracovníka" (Handbuch des volkskundlichen Mitarbeiters) (1936); sie ist gültig bis heute. Aufgrund ihrer eigenen Terrainforschungen veröffentlichte sie eine Reihe von Studien über das Volksbauwesen in der Slowakei, in der Umgebung von Těšín (Teschen) und von Jablunkov (Jablunkau). Die letzte, posthum erschienene Studie, ist gewidmet der Problematik der erhöhten Bauten in der Slowakei. Im Rahmen der Zusammenarbeit mit der Tschechoslawischen Gesellschaft für Volkskunde und einem Netz von Korrespondenten organisierte sie mehrere Fragebögen, von denen die wichtigsten dem Volksbauwesen und -wohnen gewidmet wurden. Die erhaltenen Antworten wurden im Archiv des Ethnologischen Instituts der Akademie der Wissenschaften der Tschechischen Republik in Prag (AWTR) aufbewahrt. and Článek zahrnuje seznam literatury a popisků k obrazové příloze (uveden na nečíslovaných stranách [68a - 68c]
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

8. The effects of condensed tannins extracted from different plant species on egg hatching and larval development of Teladorsagia circumcincta (Nematoda: Trichostrongylidae)

Creator:
Molan, Abdul-Lateef and Faraj, Abbas Mohamed
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Teladorsagia circumcincta, egg hatching, larval development, and condensed tannins
Language:
English
Description:
The effects of condensed tannins (CTs) extracted from five species of plants on egg hatching and larval development of Teladorsagia circumcincta (Stadelmann, 1894) (syn. Ostertagia circumcincta) were evaluated using in vitro bioassays. The extracts of CTs were obtained from Lotus pedunculatus (LP), Lotus corniculatus (LC), Dorycnium pentaphyllum (DP), Dorycnium rectum (DR) and Rumex obtusifolius (RO). The results of egg hatching assay showed that about 53%, 68%, 51%, 60% and 46% of the eggs hatched when in vitro incubations contained 900 mg/ml of CTs from LP, LC, DP, DR and RO, respectively (P< 0.001 relative to control incubation), while in control incubations (no CT added) 87% of the eggs hatched. In the larval development assay, development was allowed to proceed for 7 days, by which time 89% of the hatched larvae in control wells (no CTs) had reached the infective third stage (L3). In incubations containing 200 mg CT from LP, LC, DP, DR and RO/ml, about 8%, 15%, 14%, 8% and 4% of the eggs attained full development to L3 larvae, respectively (P< 0.001 relative to control incubation). Only 1% of the eggs were able to develop to L3 larvae in incubations containing 400 mg CT extracted from LC/ml, whilst in the incubations containing the same concentration of other CTs the eggs were not able to develop to L3 larvae. It seems that CTs are not only slowing down the larval development but also kill the undeveloped larvae. At 400 mg/ml, for example, CT from LP, LC, DP, DR and RO killed 67%, 48%, 68%, 93% and 91% of first-stage (L1) and second-stage (L2) larvae, respectively. This study shows that CTs are able to disrupt the life cycle of nematodes.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public