Glucose-induced morphological variation inSelenomonas ruminantium

Evolution of morphological integration: developmental accommodation of stress-induced variation.

Extreme environmental change during growth often results in an increase in developmental abnormalities in the morphology of an organism. The evolutionary significance of such stress-induced variation depends on the recurrence of a stressor and on the degree to which developmental errors can be accommodated by an organism's ontogeny without significant loss of function. We subjected populations ...

Influence of CH4 production by Methanobacterium ruminantium on the fermentation of glucose and lactate by Selenomonas ruminantium.

A method is described for increasing the production of H2 from glucose or lactate by Selenomonas ruminantium by sequential transfers in media containing pregrown Methanobacterium ruminantium. The methanogen uses the H2 formed by the selenomonad to reduce CO2 to CH4. Analysis of fermentation products from glucose showed that lactate was the major product formed from glucose by S. ruminantium alo...

Genetic Variation within Iranian Iris Species Using Morphological Traits

Iris belongs toIridaceae family and it is monocotyledon. Iris is one of the important ornamental and medicinal plants. 34 iris genotypes (14 species) collected from different provinces of Iran were planted at National Institute of Ornamental Plants (NIOP) Iran. All of the species evaluated for 15 quantitative traits and 30 qualitative traits. Results showed that the highest positive correlation...

Morphological Variation of Arabic Queries

Although it has been shown that in test collection based studies, stemming improves retrieval effectiveness in an information retrieval system, morphological variations of queries searching on the same topic are less well understood. This work examines the broad morphological variation that searchers of an Arabic retrieval system put into their queries. In this study, 15 native Arabic speakers ...

Morphological variation in Stenoderma rufum.