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Journal articles on the topic 'Hakea – Physiology'

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Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

SHANE, M. W., C. SZOTA, and H. LAMBERS. "A root trait accounting for the extreme phosphorus sensitivity of Hakea prostrata (Proteaceae)." Plant, Cell and Environment 27, no. 8 (August 2004): 991–1004. http://dx.doi.org/10.1111/j.1365-3040.2004.01204.x.

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2

Shane, Michael W., Michael D. Cramer, Sachiko Funayama-Noguchi, Gregory R. Cawthray, A. Harvey Millar, David A. Day, and Hans Lambers. "Developmental Physiology of Cluster-Root Carboxylate Synthesis and Exudation in Harsh Hakea. Expression of Phosphoenolpyruvate Carboxylase and the Alternative Oxidase." Plant Physiology 135, no. 1 (April 30, 2004): 549–60. http://dx.doi.org/10.1104/pp.103.035659.

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3

Morais, M. C., J. A. Cabral, and B. Gonçalves. "Seasonal variation in the leaf physiology of co-occurring invasive (Hakea sericea) and native (Pinus pinaster) woody species in a Mediterranean-type ecosystem." Forest Ecology and Management 480 (January 2021): 118662. http://dx.doi.org/10.1016/j.foreco.2020.118662.

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4

Shane, Michael W., Eric T. Fedosejevs, and William C. Plaxton. "Reciprocal Control of Anaplerotic Phosphoenolpyruvate Carboxylase by in Vivo Monoubiquitination and Phosphorylation in Developing Proteoid Roots of Phosphate-Deficient Harsh Hakea." Plant Physiology 161, no. 4 (February 13, 2013): 1634–44. http://dx.doi.org/10.1104/pp.112.213496.

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5

Henderson, Mark J., and John K. Horne. "Comparison of in situ, ex situ, and backscatter model estimates of Pacific hake (Merluccius productus) target strength." Canadian Journal of Fisheries and Aquatic Sciences 64, no. 12 (December 1, 2007): 1781–94. http://dx.doi.org/10.1139/f07-134.

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To convert acoustic energy into estimates of fish density, the target strength (TS) of a representative fish must be known. TS is a measure of the acoustic reflectivity of a fish, which is variable depending on the presence of a swimbladder, the size of the fish, its behavior, morphology, and physiology. The most common method used to estimate the TS of a fish is a TS-to-length empirical regression, with TS values increasing with fish length. This study uses in situ and ex situ TS measurements and a backscatter model to develop TS-to-length conversions for Pacific hake (Merluccius productus). Results from in situ and ex situ measurements had regression intercepts 4–6 dB lower than the previous Pacific hake TS-to-length regression. These differences suggest that an individual hake reflects 2.5–4 times less acoustic energy than was previously estimated.

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6

Hanley, Mick E., Byron B. Lamont, and W. Scott Armbruster. "Pollination and plant defence traits co-vary in Western Australian Hakeas." New Phytologist 182, no. 1 (December 9, 2008): 251–60. http://dx.doi.org/10.1111/j.1469-8137.2008.02709.x.

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7

Wilhelm, Margit R., Coleen L. Moloney, Sarah C. Paulus, Suama Kashava, Faye R. V. Brinkman, Anja K. van der Plas, Wendy M. West, Astrid Jarre, and Jean-Paul Roux. "Biannual otolith zonation of Cape hake (Merluccius capensis) in response to fish physiology and environment in the northern Benguela." Journal of Marine Systems 188 (December 2018): 98–108. http://dx.doi.org/10.1016/j.jmarsys.2017.08.001.

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8

ALA-LAURILA, PETRI, RAULI-JAN ALBERT, PIA SAARINEN, ARI KOSKELAINEN, and KRISTIAN DONNER. "The thermal contribution to photoactivation in A2 visual pigments studied by temperature effects on spectral properties." Visual Neuroscience 20, no. 4 (July 2003): 411–19. http://dx.doi.org/10.1017/s0952523803204065.

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Effects of temperature on the spectral properties of visual pigments were measured in the physiological range (5–28°C) in photoreceptor cells of bullfrog (Rana catesbeiana) and crucian carp (Carassius carassius). Absorbance spectra recorded by microspectrophotometry (MSP) in single cells and sensitivity spectra recorded by electroretinography (ERG) across the isolated retina were combined to yield accurate composite spectra fromca. 400 nm to 800 nm. The four photoreceptor types selected for study allowed three comparisons illuminating the properties of pigments using the dehydroretinal (A2) chromophore: (1) the two members of an A1/A2 pigment pair with the same opsin (porphyropsinvs.rhodopsin in bullfrog “red” rods); (2) two A2 pigments with similar spectra (porphyropsin rods of bullfrog and crucian carp); and (3) two A2 pigments with different spectra (rodsvs.long-wavelength-sensitive (L-) cones of crucian carp). Qualitatively, the temperature effects on A2 pigments were similar to those described previously for the A1 pigment of toad “red” rods. Warming caused an increase in relative sensitivities at very long wavelengths but additionally a small shift of λmaxtoward shorter wavelengths. The former effect was used for estimating the minimum energy required for photoactivation (Ea) of the pigment. Bullfrog rod opsin with A2 chromophore hadEa= 44.2 ± 0.9 kcal/mol, significantly lower (one-tailedP< 0.05) than the valueEa= 46.5 ± 0.8 kcal/mol for the same opsin coupled to A1. The A2 rod pigment of crucian carp hadEa= 42.3 ± 0.6 kcal/mol, which is significantly higher (one-tailedP< 0.01) than that of the L-cones in the same retina (Ea= 38.3 ± 0.4 kcal/mol), whereas the difference compared with the bullfrog A2 rod pigment is not statistically significant (two-tailedP= 0.13). No strict connection between λmaxandEaappears to exist among A2 pigments any more than among A1 pigments. Still, the A1 → A2 chromophore substitution in bullfrog opsin causes three changes correlated as originally hypothesized by Barlow (1957): a red-shift of λmax, a decrease inEa, and an increase in thermal noise.

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9

Alvarado, Manuel, Edison Serrano, Juan Carlos Sánchez, and Luis Valladares. "Changes in plasma steroid hormones and gonadal histology associated with sexual maturation in wild southern hake (Merluccius australis)." Latin American Journal of Aquatic Research 43, no. 4 (February 28, 2017): 632–40. http://dx.doi.org/10.3856/vol43-issue4-fulltext-2.

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A detailed study of gametes development and characterization of plasma sex steroid hormones during the maturation cycle was performed for the first time in the southern hake (Merluccius australis). Fish were caught in the inland waters of the Reloncaví Sound, Interior Sea of Chiloé, Chile. Samples of gonads and blood were collected for histology and sex steroid hormone (17 β-estradiol, 11-ketotestosterone and 17,20 βdihydroxy-4-pregnen-3-one) analysis, respectively. Sex steroid hormone quantification was performed using enzyme-immunoassay (ELISA). Results showed that M. australis males and females have asynchronous development of testicles and ovaries, in all stages of maturation. Most spawning fish were found during the spring months. Regarding the sex steroid hormones, serological fluctuations of 17 β-estradiol and 11- ketotestosterone were found during gonadal maturation of M. australis. These hormones are the main hormones responsible for vitelogenesis and spermatogenesis processes, respectively. Conversely, 17,20 β-dihydroxy-4- pregnen-3-one did not show any serological fluctuation in females and males. Further studies involving gonadotropins, 17,20 β,21-trihydroxy-4-pregnen-3-one and vitellogenin quantification are required in order to obtain a more complete description of the reproductive physiology of wild and farmed M. australis.

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10

Roura, Sara I., Jorge Pecci Saavedra, Raúl E. Trucco, and Marcos Crupkin. "Electron microscopical and biochemical studies of actomyosin from pre- and post-spawned hake." Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 101, no. 3 (March 1992): 361–65. http://dx.doi.org/10.1016/0305-0491(92)90013-h.

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11

Bonk, Devin, Chloé Leprince, Katherine A. Tamminen, and Julie Doron. "Collective rituals in team sports: Implications for team resilience and communal coping." Movement & Sport Sciences - Science & Motricité, no. 105 (2019): 27–36. http://dx.doi.org/10.1051/sm/2019007.

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Many sports teams engage in collective rituals (e.g., the New Zealand All Blacks’ haka). While the concept has been studied extensively in other fields (e.g., social psychology and cultural anthropology), literature on collective rituals specific to sport is limited. Leveraging theoretical positions and empirical findings from across the human and social sciences, the application of an existing definition of collective ritual in team sports is explored. Complementary research is suggestive of a potential link between collective rituals and two growing topics of interest in group dynamics, namely, team resilience and communal coping. Collective rituals can bolster team resilience by strengthening the group structure and increasing a team’s social capital. They can also serve as communal coping strategies, helping to manage team stressors as they arise. However, at the extremes, collective rituals can become problematic. Over-reliance and abusive rites of passage (i.e., hazing) are considered. Potential applied implications and future research directions in sport psychology are then discussed.

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12

Roura, Sara I., Adriana L. Goldemberg, Raúl E. Trucco, and Marcos Crupkin. "Action of Triton X-100 on the biochemical and functional properties of hake (Merluccius hubbsi) myofibrils." Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 102, no. 4 (August 1992): 923–27. http://dx.doi.org/10.1016/0305-0491(92)90103-x.

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13

Pagano, Mariana Romina, Maria Elida Paredi, and Marcos Crupkin. "Cytoskeletal ultrastructure and lipid composition of I-Z-I fraction in muscle from pre- and post-spawned female hake (Merluccius hubbsi)." Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology 141, no. 1 (May 2005): 13–21. http://dx.doi.org/10.1016/j.cbpc.2004.11.019.

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14

Crovetto, Cecilia Alejandra, and Osvaldo León Córdoba. "Structural and biochemical characterization and evolutionary relationships of the fatty acid-binding protein 10 (Fabp10) of hake (Merluccius hubbsi)." Fish Physiology and Biochemistry 42, no. 1 (September 14, 2015): 149–65. http://dx.doi.org/10.1007/s10695-015-0126-x.

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15

Roura, Sara I., Hugo Roldán, Adriana L. Goldemberg, Raúl E. Trucco, and Marcos Crupkin. "Effect of triton X-100 treatment on the lipid composition, biochemical and functional properties of hake (Merluccius hubbsi) myofibrils purified from pre- and post-spawned fish." Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 106, no. 1 (September 1993): 191–97. http://dx.doi.org/10.1016/0305-0491(93)90026-2.

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16

Kotula, Lukasz, Peta L. Clode, Kosala Ranathunge, and Hans Lambers. "Role of roots in adaptation of soil-indifferent Proteaceae to calcareous soils in south-western Australia." Journal of Experimental Botany, November 11, 2020. http://dx.doi.org/10.1093/jxb/eraa515.

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Abstract Very few of the >650 Proteaceae species in south-western Australia cope with the high calcium (Ca) levels in young, calcareous soils (soil indifferent); most are Ca sensitive and occur on nutrient-impoverished, acidic soils (calcifuge). We assessed possible control points for Ca transport across roots of two soil-indifferent (Hakea prostrata and Banksia prionotes) and two calcifuge (H. incrassata and B. menziesii) Proteaceae. Using quantitative X-ray microanalysis, we investigated cell-specific elemental Ca concentrations at two positions behind the apex in relation to development of apoplastic barriers in roots of plants grown in nutrient solution with low or high Ca supply. In H. prostrata, Ca accumulated in outer cortical cells at 20 mm behind the apex, but [Ca] was low in other cell types. In H. incrassata, [Ca] was low in all cells. Accumulation of Ca in roots of H. prostrata corresponded to development of apoplastic barriers in the endodermis. We found similar [Ca] profiles in roots and similar [Ca] in leaves of two contrasting Banksia species. Soil-indifferent Hakea and Banksia species show different strategies to inhabit calcareous soils: H. prostrata intercepts Ca in roots, reducing transport to shoots, whereas B. prionotes allocates Ca to specific leaf cells.

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17

Annand, Colin T., Sheila M. Fleming, and John G. Holden. "Farey Trees Explain Sequential Effects in Choice Response Time." Frontiers in Physiology 12 (March 17, 2021). http://dx.doi.org/10.3389/fphys.2021.611145.

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The latencies of successive two-alternative, forced-choice response times display intricately patterned sequential effects, or dependencies. They vary as a function of particular trial-histories, and in terms of the order and identity of previously presented stimuli and registered responses. This article tests a novel hypothesis that sequential effects are governed by dynamic principles, such as those entailed by a discrete sine-circle map adaptation of the Haken Kelso Bunz (HKB) bimanual coordination model. The model explained the sequential effects expressed in two classic sequential dependency data sets. It explained the rise of a repetition advantage, the acceleration of repeated affirmative responses, in tasks with faster paces. Likewise, the model successfully predicted an alternation advantage, the acceleration of interleaved affirmative and negative responses, when a task’s pace slows and becomes more variable. Detailed analyses of five studies established oscillatory influences on sequential effects in the context of balanced and biased trial presentation rates, variable pacing, progressive and differential cognitive loads, and dyadic performance. Overall, the empirical patterns revealed lawful oscillatory constraints governing sequential effects in the time-course and accuracy of performance across a broad continuum of recognition and decision activities.

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