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Full-Text Articles in Life Sciences

Prothoracicotropic Hormone-Producing Neurosecretory Neurons And Antioxidative Defense In Midgut Of Lymantria Dispar In Trophic Stress, Vesna Peric Mataruga, Milena Vlahovic, Marija Mrdakovic, Dajana Todorovic, Dragana Matic, Anja Gavrilovic, Larisa Ilijin Jan 2014

Prothoracicotropic Hormone-Producing Neurosecretory Neurons And Antioxidative Defense In Midgut Of Lymantria Dispar In Trophic Stress, Vesna Peric Mataruga, Milena Vlahovic, Marija Mrdakovic, Dajana Todorovic, Dragana Matic, Anja Gavrilovic, Larisa Ilijin

Turkish Journal of Biology

As a very invasive insect species, Lymantria dispar is adaptable and sensitive to a changing environment. In insects the neuroendocrine system first reacts to stress by production of prothoracicotropic neurohormones (PTTH) that control ecdysteroid synthesis (morphogenetic and stress hormones). In this article, we report changes in the L2' brain neurosecretory neurons that synthesize PTTH in L. dispar larvae after feeding on locust tree leaves (Robinia pseudoacacia), an unsuitable host plant. Groups of larvae (n = 20 per experimental group) were offered this in comparison with oak leaves (Quercus robur), a suitable control diet, for 3 days after molting into the …


Characterization For Drought Resistance At Early Stages Of Wheat Genotypes Based On Survival, Coleoptile Length, And Seedling Vigor, Ali̇ Öztürk, Si̇nan Bayram, Kami̇l Hali̇loğlu, Murat Aydin, Özcan Çağlar, Sancar Bulut Jan 2014

Characterization For Drought Resistance At Early Stages Of Wheat Genotypes Based On Survival, Coleoptile Length, And Seedling Vigor, Ali̇ Öztürk, Si̇nan Bayram, Kami̇l Hali̇loğlu, Murat Aydin, Özcan Çağlar, Sancar Bulut

Turkish Journal of Agriculture and Forestry

In order to develop genotypes having a stable higher yield, it is necessary to characterize genetic resources based on drought adaptation, determine the suitable genotypes, and use them in breeding programs. This study was carried out in greenhouses, plant growth chambers, and research farms of the Faculty of Agriculture at Atatürk University. A total of 64 certified and local bread wheat genotypes were used to test survival after drought, coleoptile length, and seedling vigor. There were significant differences with respect to the selection parameters in this study. Seedling survival ranged from 18.5% to 51.1% and coleoptile lengths were 39–74 mm. …