We investigated the overwintering physiology and behavior of Phyllocnistis populiella Chambers, the aspen leaf miner, which has caused severe and widespread damage to aspen in Alaska over the past 10 yr. Active P. populiella moths caught in spring and summer supercooled to an average temperature of -16°C, whereas dormant moths excavated from hibernacula in the leaf litter during fall and winte...

Leaf exchange is an abrupt phenological event that drastically modifies the morphology and physiology of the aerial portion of the plant. We examined if water and osmolyte differences between old leaves and new organs trigger leaf exchange, and whether the differences are closely linked to the resource resorption process in senescing leaves. We monitored concentrations of osmolyte, water, non-s...

Ferns usually have relatively lower photosynthetic potential than angiosperms. However, it is unclear whether low photosynthetic potential of ferns is linked to leaf water supply. We hypothesized that there is an evolutionary association of leaf water transport capacity with photosynthesis and stomatal density in ferns. In the present study, a series of functional traits relating to leaf anatom...

Free-living animals must make dietary choices in terms of chemical and physical properties, depending on their digestive physiology and availability of food resources. Here we comprehensively evaluated the dietary choices of proboscis monkeys (Nasalis larvatus) consuming young leaves. We analysed the data for leaf toughness and digestibility measured by an in vitro gas production method, in add...

Global warming and shortage of water have been evidenced in the recent past and are predicted for the future. Climate change will inevitably have considerable impact on plant physiology, growth, productivity and forest ecosystem functions. The present study determined the effects of simulated daytime air warming (+1 to 1.5 °C during the growing season), drought (-40% and -57% of mean precipitat...

Widespread mortality of eastern hemlock (Tsuga canadensis [L.] Carr.) has been occurring due to the introduction woolly adelgid (Adelges tsugae Annand) (HWA), threatening millions hectares hemlock-dominated forests in United States. HWA feeds at base needles and removes stored carbohydrates, which can impact leaf-level physiology, contributing decline tree. However, these physiological mechanis...

Kaffir lime is leaf-oriented minor citrus that required extra attention to study. This study aimed (i) comparatively analyze the young and mature leaf morpho-ecophysiological characters; (ii) perform a correlation analysis for revealing relationship among physiological characters. Plants were ten one-year-old kaffir trees cultured under full sun condition. Leaf size was measured by using specif...

Beech leaf disease (BLD) damage is associated with the parasitic nematode Litylenchus crenatae ssp. mccannii . Foliar symptoms manifest as darkened or chlorotic galls in interveinal portions leaf, which become leathery and crinkled under high severity of infection. Though nearly a decade has passed since discovery this disease, little known regarding impact BLD on function physiology. This stud...