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M Coraiola - One of the best experts on this subject based on the ideXlab platform.

  • seed production of a subalpine festuca nigrescens agrostis capillaris semi natural grassland in the eastern italian alps
    Plant Biosystems, 2015
    Co-Authors: Michele Scotton, Lisa Piccinin, M Coraiola
    Abstract:

    Studying the seed production of semi-natural grasslands helps to understand their regeneration processes and to evaluate the possibility of collecting seed useful for ecological restoration. In a subalpine Festuca nigrescens–Agrostis capillaris meadow, the development of the main grasses' seed production and the standing seed yield at meadow maturity were studied. The inflorescence size was in the lower part of the variation range reported in previous studies. The seed viability was average to high and durable. The biological floret site utilization was mostly above 50%. With 458 fertile stems m− 2, the seeds produced (all seeds produced up to the time of the meadow maturity) by the main grasses were 21,000 m− 2, of which 77% were of A. capillaris and 81% were viable. On a 3-year average, the standing seed yield (seeds present on the plants, i.e. produced minus shed seeds) at meadow maturity was 6953 seeds m− 2. Amount and composition of the produced seeds were affected mainly by the variability among yea...

  • Seed production of a subalpineFestuca nigrescens-Agrostis capillaris semi-natural grassland in the eastern Italian Alps
    'Informa UK Limited', 2015
    Co-Authors: Scotton Michele, Lisa Piccinin, M Coraiola
    Abstract:

    Studying the seed production of semi-natural grasslands helps to understand their regeneration processes and to evaluate the possibility of collecting seed useful for ecological restoration. In a subalpine Festuca nigrescens \u2013 Agrostis capillaris meadow, the development of the main grasses\u2019 seed production and the standing seed yield at meadow maturity were studied. The inflorescence size was in the lower part of the variation range reported in previous studies. The seed viability was average to high and durable. The biological floret site utilization was mostly above 50%. With 458 fertile stems m22, the seeds produced (all seeds produced up to the time of the meadow maturity) by the main grasses were 21,000m22, of which 77% were of A. capillaris and 81% were viable.On a 3-year average, the standing seed yield (seeds present on the plants, i.e. produced minus shed seeds) at meadow maturity was 6953 seedsm22. Amount and composition of the produced seeds were affected mainly by the variability among years of the fertile stems density of the perennial grasses and the annual hemiparasite Rhinanthus freynii. The percentage of produced seeds which formed the standing seed yield was affected mainly by the collecting date

Michael S Davis - One of the best experts on this subject based on the ideXlab platform.

  • acylcarnitine profile in alaskan Sled dogs during submaximal multiday exercise points out metabolic flexibility and liver role in energy metabolism
    PLOS ONE, 2021
    Co-Authors: Irene Tosi, Tatiana Art, Francois Boemer, D Votion, Michael S Davis
    Abstract:

    Alaskan Sled dogs develop a particular metabolic strategy during multiday submaximal exercise, allowing them to switch from intra-muscular to extra-muscular energy substrates thus postponing fatigue. Specifically, a progressively increasing stimulus for hepatic glycogenolysis and gluconeogenesis provides glucose for both fueling exercise and replenishing the depleted muscle glycogen. Moreover, recent studies have shown that with continuation of exercise Sled dogs increase their insulin-sensitivity and their capacity to transport and oxidize glucose and carbohydrates rather than oxidizing fatty acids. Carnitine and acylcarnitines (AC) play an essential role as metabolic regulators in both fat and glucose metabolism; they serve as biomarkers in different species in both physiologic and pathologic conditions. We assessed the effect of multiday exercise in conditioned Sled dogs on plasma short (SC), medium (MC) and long (LC) chain AC by tandem mass spectrometry (MS/MS). Our results show chain-specific modification of AC profiles during the exercise challenge: LCACs maintained a steady increase throughout exercise, some SCACs increased during the last phase of exercise and acetylcarnitine (C2) initially increased before decreasing during the later phase of exercise. We speculated that SCACs kinetics could reflect an increased protein catabolism and C2 pattern could reflect its hepatic uptake for energy-generating purposes to sustain gluconeogenesis. LCACs may be exported by muscle to avoid their accumulation to preserve glucose oxidation and insulin-sensitivity or they could be distributed by liver as energy substrates. These findings, although representing a "snapshot" of blood as a crossing point between different organs, shed further light on Sled dogs metabolism that is liver-centric and more carbohydrate-dependent than fat-dependent and during prolonged submaximal exercise.

Michele Scotton - One of the best experts on this subject based on the ideXlab platform.

  • seed production of a subalpine festuca nigrescens agrostis capillaris semi natural grassland in the eastern italian alps
    Plant Biosystems, 2015
    Co-Authors: Michele Scotton, Lisa Piccinin, M Coraiola
    Abstract:

    Studying the seed production of semi-natural grasslands helps to understand their regeneration processes and to evaluate the possibility of collecting seed useful for ecological restoration. In a subalpine Festuca nigrescens–Agrostis capillaris meadow, the development of the main grasses' seed production and the standing seed yield at meadow maturity were studied. The inflorescence size was in the lower part of the variation range reported in previous studies. The seed viability was average to high and durable. The biological floret site utilization was mostly above 50%. With 458 fertile stems m− 2, the seeds produced (all seeds produced up to the time of the meadow maturity) by the main grasses were 21,000 m− 2, of which 77% were of A. capillaris and 81% were viable. On a 3-year average, the standing seed yield (seeds present on the plants, i.e. produced minus shed seeds) at meadow maturity was 6953 seeds m− 2. Amount and composition of the produced seeds were affected mainly by the variability among yea...

Irene Tosi - One of the best experts on this subject based on the ideXlab platform.

  • acylcarnitine profile in alaskan Sled dogs during submaximal multiday exercise points out metabolic flexibility and liver role in energy metabolism
    PLOS ONE, 2021
    Co-Authors: Irene Tosi, Tatiana Art, Francois Boemer, D Votion, Michael S Davis
    Abstract:

    Alaskan Sled dogs develop a particular metabolic strategy during multiday submaximal exercise, allowing them to switch from intra-muscular to extra-muscular energy substrates thus postponing fatigue. Specifically, a progressively increasing stimulus for hepatic glycogenolysis and gluconeogenesis provides glucose for both fueling exercise and replenishing the depleted muscle glycogen. Moreover, recent studies have shown that with continuation of exercise Sled dogs increase their insulin-sensitivity and their capacity to transport and oxidize glucose and carbohydrates rather than oxidizing fatty acids. Carnitine and acylcarnitines (AC) play an essential role as metabolic regulators in both fat and glucose metabolism; they serve as biomarkers in different species in both physiologic and pathologic conditions. We assessed the effect of multiday exercise in conditioned Sled dogs on plasma short (SC), medium (MC) and long (LC) chain AC by tandem mass spectrometry (MS/MS). Our results show chain-specific modification of AC profiles during the exercise challenge: LCACs maintained a steady increase throughout exercise, some SCACs increased during the last phase of exercise and acetylcarnitine (C2) initially increased before decreasing during the later phase of exercise. We speculated that SCACs kinetics could reflect an increased protein catabolism and C2 pattern could reflect its hepatic uptake for energy-generating purposes to sustain gluconeogenesis. LCACs may be exported by muscle to avoid their accumulation to preserve glucose oxidation and insulin-sensitivity or they could be distributed by liver as energy substrates. These findings, although representing a "snapshot" of blood as a crossing point between different organs, shed further light on Sled dogs metabolism that is liver-centric and more carbohydrate-dependent than fat-dependent and during prolonged submaximal exercise.

Lisa Piccinin - One of the best experts on this subject based on the ideXlab platform.

  • seed production of a subalpine festuca nigrescens agrostis capillaris semi natural grassland in the eastern italian alps
    Plant Biosystems, 2015
    Co-Authors: Michele Scotton, Lisa Piccinin, M Coraiola
    Abstract:

    Studying the seed production of semi-natural grasslands helps to understand their regeneration processes and to evaluate the possibility of collecting seed useful for ecological restoration. In a subalpine Festuca nigrescens–Agrostis capillaris meadow, the development of the main grasses' seed production and the standing seed yield at meadow maturity were studied. The inflorescence size was in the lower part of the variation range reported in previous studies. The seed viability was average to high and durable. The biological floret site utilization was mostly above 50%. With 458 fertile stems m− 2, the seeds produced (all seeds produced up to the time of the meadow maturity) by the main grasses were 21,000 m− 2, of which 77% were of A. capillaris and 81% were viable. On a 3-year average, the standing seed yield (seeds present on the plants, i.e. produced minus shed seeds) at meadow maturity was 6953 seeds m− 2. Amount and composition of the produced seeds were affected mainly by the variability among yea...

  • Seed production of a subalpineFestuca nigrescens-Agrostis capillaris semi-natural grassland in the eastern Italian Alps
    'Informa UK Limited', 2015
    Co-Authors: Scotton Michele, Lisa Piccinin, M Coraiola
    Abstract:

    Studying the seed production of semi-natural grasslands helps to understand their regeneration processes and to evaluate the possibility of collecting seed useful for ecological restoration. In a subalpine Festuca nigrescens \u2013 Agrostis capillaris meadow, the development of the main grasses\u2019 seed production and the standing seed yield at meadow maturity were studied. The inflorescence size was in the lower part of the variation range reported in previous studies. The seed viability was average to high and durable. The biological floret site utilization was mostly above 50%. With 458 fertile stems m22, the seeds produced (all seeds produced up to the time of the meadow maturity) by the main grasses were 21,000m22, of which 77% were of A. capillaris and 81% were viable.On a 3-year average, the standing seed yield (seeds present on the plants, i.e. produced minus shed seeds) at meadow maturity was 6953 seedsm22. Amount and composition of the produced seeds were affected mainly by the variability among years of the fertile stems density of the perennial grasses and the annual hemiparasite Rhinanthus freynii. The percentage of produced seeds which formed the standing seed yield was affected mainly by the collecting date