Nickel toxicity in mycorrhizal bich seedling infected with Lactarius rufus and Scleroderma flavidum. I. Effect on growth, photosynthesis, respiration and transpiration
Does skipping a meal matter to a butterfly’s appearance? Effects of larval food stress on wing morphology and color in monarch butterflies. Spatial patterns of correlated scale size and scale color in relation to color pattern elements in butterfly wings. Transcriptome analysis of the painted lady butterfly, Vanessa cardui during wing color pattern development.
Here, we used a geometrid moth Jankowskia fuscaria to examine i whether a choice of resting orientation by moths depends on the properties of natural background, and ii what sensory cues moths use. We studied moths’ behavior on natural (a tree log and artificial backgrounds, each of which was designed to mimic one of the hypothetical cues that moths may perceive on a tree trunk (visual pattern , directional furrow structure, and curvature. We found that moths mainly used structural cues from the background when choosing their resting position and orientation. Our findings highlight the possibility that moths use information from one type of sensory modality (structure of furrows is probably detected through tactile channel to achieve crypticity in another sensory modality (visual. This study extends our knowledge of how behavior, sensory systems and morphology of animals interact to produce crypsis. Cryptically patterned moths perceive bark structure when choosing body orientations that match wing color pattern to the bark pattern. and the absence of Wolbachia sp.
The reduced photosynthesis and biomass in ECM seedlings compared to NM seedlings under higher Cu conditions were also accompanied by lower phosphorus in needles. There was no marked difference between the two fungal species. Our results indicate that the two ECM fungi studied in our system may not have an ability to selectively eliminate Cu in nutrient absorption and may not act as effective barriers that decrease toxic metal uptake into host plants. In natural environments, tree roots are almost always in intimate, symbiotic association with particular species of fungi through the formation of mycorrhizae.
Changes in ECM communities through primary and secondary succession are reviewed and related to the influence of N availability. The effect of N-related functional traits of ECM fungi on their distribution is discussed. Part II focuses on the ECM plant partners. The influence of ECM fungi on plant N uptake, and effects of N deposition and fertilization are presented. The benefit of ECM inoculation under different disturbance regimes and the benefit of greater ECM diversity are reviewed.
- The angle-dependent peak wavelength of the observed iridescence is in agreement with classical multilayer theory.
- Certain fungi probably retain a considerable amount of nitrogen for their own growth, thus reducing the amount transported to the host plant.
- Effects of larval food stress on wing morphology and color in monarch butterflies.
This study extends our knowledge of how behavior, sensory systems and morphology of animals interact to produce crypsis. on the wings . Furthermore, after landing on a bark moths are able to perceive stimuli that correlate with their crypticity and are able to re-position their bodies to new more cryptic locations and body orientations. However, the proximate mechanisms, i.e. how a moth finds an appropriate resting position and orientation, are poorly studied.
It seems that the latter occurs even without diffusion for heterogeneous enough networks. In extreme cases (of the crosslinking parameters), the spatial correlations display on apparent fractal behavior, of dimensions 2 to 2.5, which is discussed here in terms of random clusters. 200 refs., 95 figs., 21 tabs., 10 appends. but in all cases known female moths possess sex pheromone glands which apparently have been lost in female butterflies .
Some species (e.g. Lecanicillium lecanii) can even be isolated from both infected nematodes and insects. The NEF may also infect other organisms (other fungi and plants) apart from their canonical hosts in a similar or different mode. We will use the term multimodal to describe the mode of action of these biological activities (Fig. 17.1). However, to date, the main emphasis in research has covered their mode of action on their canonical hosts (e.g. nematodes for nematophagous fungi). Many of these fungi are used for biological control of plant-parasitic organisms.
Mycorrhizal Symbiosis is recognized as the definitive work in this area. Since the last edition was published there have been major advances in the field, particularly in the area of molecular biology, and the new edition has been fully revised and updated to incorporate these exciting new developments. Over 50% new material . Includes expanded color plate section .