Search Results - "Verhoeven, Amy S"

Sustained zeaxanthin‐dependent thermal dissipation is induced by desiccation and low temperatures in the fern Polypodium virginianum by Putzier, Catherine C., Polich, Sidney B., Verhoeven, Amy S.

“…Desiccation and low temperatures inhibit photosynthetic carbon reduction and, in combination with light, result in severe oxidative stress, thus, tolerant…”
Get full text

Recovery kinetics of photochemical efficiency in winter stressed conifers: the effects of growth light environment, extent of the season and species by Verhoeven, Amy S.

“…Evergreens undergo reductions in maximal photochemical efficiency (Fv/Fm) during winter due to increases in sustained thermal energy dissipation. Upon removing…”
Get full text

Characterization of light-dependent regulation of state transitions in gymnosperms by Verhoeven, Amy S, Kertho, Albert, Nguyen, Mary

“…The goal of this study was to characterize the light-dependent regulation of state transitions in gymnosperms. Two species of conifer were examined: eastern…”
Get full text

Is zeaxanthin needed for desiccation tolerance? Sustained forms of thermal dissipation in tolerant versus sensitive bryophytes by Verhoeven, Amy S., Berkowitz, Jennifer M., Walton, Brenna N., Berube, Brandt K., Willour, Jerry J., Polich, Sidney B.

“…Desiccation tolerant (DT) plants engage and disengage sustained forms of energy dissipation in response to desiccation and rehydration. This project sought to…”
Get full text

Xanthophyll cycle pigment localization and dynamics during exposure to low temperatures and light stress in Vinca major by Verhoeven, A.S, Adams, W.W. III, Demmig-Adams, B, Croce, R, Bassi, R

“…The distribution of xanthophyll cycle pigments (violaxanthin plus antheraxanthin plus zeaxanthin [VAZ]) among photosynthetic pigment-protein complexes was…”
Get full text

Could seasonally deteriorating environments favour the evolution of autogamous selfing and a drought escape physiology through indirect selection? A test of the time limitation hypothesis using artificial selection in Clarkia by Emms, Simon K, Hove, Alisa A, Dudley, Leah S, Mazer, Susan J, Verhoeven, Amy S

“…The evolution of selfing from outcrossing may be the most common transition in plant reproductive systems and is associated with a variety of ecological…”
Get full text

Overexpression of violaxanthin de-epoxidase: properties of C-terminal deletions on activity and pH-dependent lipid binding by Hieber, David A, Bugos, Robert C, Verhoeven, Amy S, Yamamoto, Harry Y

“…Violaxanthin de-epoxidase (VDE) is localized in the thylakoid lumen and catalyzes the de-epoxidation of violaxanthin to form antheraxanthin and zeaxanthin. VDE…”
Get full text

Seasonal changes in physiological performance in wild Clarkia xantiana populations: Implications for the evolution of a compressed life cycle and self-fertilization by Dudley, Leah S., Hove, Alisa A., Verhoeven, Amy S., Mazer, Susan J.

“…• Premise of the study: One explanation for the evolution of selfing, the drought escape hypothesis, proposes that self-fertilization may evolve under…”
Get full text

Physiological performance in Clarkia sister taxa with contrasting mating systems: Do early-flowering autogamous taxa avoid water stress relative to their pollinator-dependent counterparts? by Mazer, Susan J, Dudley, Leah S, Hove, Alisa A, Emms, Simon K, Verhoeven, Amy S

“…Consistent differences in the physiological performance of wild populations of closely related plant taxa may be the result of environmentally induced…”
Get full text

Calcium-Induced Interactions of Calmodulin Domains Revealed by Quantitative Thrombin Footprinting of Arg37 and Arg106 by Shea, Madeline A, Verhoeven, Amy S, Pedigo, Susan

“…Calcium-dependent conformational states of calmodulin (CaM) were probed by thrombin to determine quantitative differences in the susceptibility of two bonds: …”
Get full text

Proteolytic footprinting titrations for estimating ligand-binding constants and detecting pathways of conformational switching of calmodulin by Shea, M A, Sorensen, B R, Pedigo, S, Verhoeven, A S

“…To dissect the chemical basis for interactions controlling regulatory properties of macromolecular assemblies, it is essential to explore experimentally the…”
Get more information

Enhanced employment of the xanthophyll cycle and thermal energy dissipation in spinach exposed to high light and N stress by Verhoeven, A.S. (University of Colorado, Boulder, CO.), Demmig-Adams, B, Adams, W.W. III

“…The involvement of the xanthophyll cycle in photoprotection of N-deficient spinach (Spinacia oleracea L. cv Nobel) was investigated. Spinach plants were…”
Get full text

Transgenic tobacco with suppressed zeaxanthin formation is susceptible to stress-induced photoinhibition by Verhoeven, A S, Bugos, R C, Yamamoto, H Y

“…Tobacco (Nicotiana tabacum cv. Xanthi) transformed with the antisense construct of tobacco violaxanthin de-epoxidase was analyzed for responses in growth…”
Get full text

Suppression of zeaxanthin formation does not reduce photosynthesis and growth of transgenic tobacco under field conditions by Sun, W H, Verhoeven, A S, Bugos, R C, Yamamoto, H Y

“…Tobacco (Nicotiana tabacum cv. Xanthi) transformed with an antisense cDNA construct of violaxanthin de-epoxidase (VDE) was examined for the effects of…”
Get full text

Seasonal changes in leaf antioxidant systems and xanthophyll cycle characteristics in Taxus x media growing in sun and shade environments by Verhoeven, Amy S., Swanberg, Annie, Thao, Mai, Whiteman, John

“…We examined differences between summer and winter in xanthophyll cycle‐dependent energy dissipation and leaf antioxidant systems in needles of the…”
Get full text

Physiological Performance inClarkiaSister Taxa with Contrasting Mating Systems: Do Early-Flowering Autogamous Taxa Avoid Water Stress Relative to Their Pollinator-Dependent Counterparts? by Mazer, Susan J., Dudley, Leah S., Hove, Alisa A., Emms, Simon K., Verhoeven, Amy S.

“…Consistent differences in the physiological performance of wild populations of closely related plant taxa may be the result of environmentally induced…”
Get full text

Seasonal changes in leaf antioxidant systems and xanthophyll cycle characteristics in Taxus x media growing in sun and shade environments: Plant proteases by VERHOEVEN, Amy S, SWANBERG, Annie, MAI THAO, WHITEMAN, John

Get full text

The xanthophyll cycle and acclimation of plants to environmental stress by Verhoeven, Amy S

“…The carotenoids of the xanthophyll cycle are involved in an important photoprotective mechanism in plants whereby excessive absorbed excitation energy is…”
Get full text

Xanthophyll Cycle Pigment Localization and Dynamics during Exposure to Low Temperatures and Light Stress in Vinca major 1 by Verhoeven, Amy S., Adams, William W., Demmig-Adams, Barbara, Croce, Roberta, Bassi, Roberto

“…Abstract The distribution of xanthophyll cycle pigments (violaxanthin plus antheraxanthin plus zeaxanthin [VAZ]) among photosynthetic pigment-protein complexes…”
Get full text

Xanthophyll Cycle Pigment Localization and Dynamics during Exposure to Low Temperatures and Light Stress in Vinca major1 by Verhoeven, Amy S., Adams, William W., Demmig-Adams, Barbara, Croce, Roberta, Bassi, Roberto

“…The distribution of xanthophyll cycle pigments (violaxanthin plus antheraxanthin plus zeaxanthin [VAZ]) among photosynthetic pigment-protein complexes was…”
Get full text