Results 31 to 40 of about 2,306,257 (312)

Mosses are Important for Soil Carbon Sequestration in Forested Peatlands

Frontiers in Environmental Science, 2021
Nutrient-rich peat soils have previously been demonstrated to lose carbon despite higher photosynthesis and litter production compared to nutrient-poor soils, where instead carbon accumulates.
Å. Kasimir, H. He, P.-E. Jansson, A. Lohila, A. Lohila, K. Minkkinen   +5 more
doaj   +1 more source

Caspase inhibitors affect the kinetics and dimensions of tracheary elements in xylogenic Zinnia (Zinnia elegans) cell cultures [PDF]

, 2010
Background The xylem vascular system is composed of fused dead, hollow cells called tracheary elements (TEs) that originate through trans-differentiation of root and shoot cambium cells. TEs undergo autolysis as they differentiate and mature.
Elena T Iakimova, Ernst J Woltering, Qian Tian, Twumasi, P., Schel Jan HN, Emons, A.M.C., Wim van Ieperen, Olaf van Kooten, van Ieperen Wim, van Kooten, O., van Ieperen, W., Iakimova, E.T., van Kooten Olaf, Qian, T., Emons Anne, Schel, J.H.N., Peter Twumasi, Tian Qian, Iakimova Elena T, Woltering, E.J., Anne Emons, Kooten, O., van, Ieperen, W., van, Anne MieC Emons, Twumasi Peter, Woltering Ernst J, Jan HN Schel   +26 more
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Functional imaging of plants: A nuclear magnetic resonance study of a cucumber plant [PDF]

, 2002
Functional magnetic resonance imaging was used to study transients of biophysical parameters in a cucumber plant in response to environmental changes. Detailed flow imaging experiments showed the location of xylem and phloem in the stem and the response ...
As, H., van, Scheenen, T., Heemskerk, A., Vergeldt, F.J., Jager, A., de   +4 more
core   +1 more source

Influence of GdVO₄:Eu³⁺ Nanocrystals on Growth, Germination, Root Cell Viability and Oxidative Stress of Wheat (Triticum aestivum L.) Seedlings

Plants, 2021
The increasing application of lanthanide-doped nanocrystals (LDNCs) entails the risk of a harmful impact on the natural environment. Therefore, in the presented study the influence of gadolinium orthovanadates doped with Eu3+ (GdVO4:Eu3) nanocrystals on ...
Anna Ekner-Grzyb, Jagna Chmielowska-Bąk, Agata Szczeszak   +2 more
doaj   +1 more source

EVIDENCE OF VASCULAR PLANTS IN THE CAMBRIAN [PDF]

Evolution, 1956
During the last two decades attention has been focused on spore discoveries in Early Palaeozoic rocks, and several varied types of spores have been distinguished. While the information given by palynology agrees with the flora known in Upper and Middle Devonian, the assemblage of spores found in Lower Devonian, Silurian and Cambrian plead in favor of a
openaire   +1 more source

Role of nutritional indices in predicting outcomes of vascular surgery [PDF]

, 2019
Background: Malnutrition is frequent among vascular surgery patients, given their age, chronic comorbidities, and poor functional status, and it is believed to increase their operative risk.
Rabeh, Wissam, Jabbour, Jana, Abou Ali, Adham N., Al-Shaar, Laila, Avgerinos, Efthymios D., Habib, Robert H.   +5 more
core   +1 more source

Distribution, ecology and conservation of the Potamogeton alpinus Balb. (Potamogetonaceae Bercht. & J. Presl) on the southern border of range in European Russia

Трансформация экосистем
Potamogeton alpinus Balb. is a Holarctic arctoboreal aquatic plant species. In European Russia, it is a common species in the tundra and taiga. We have found that the southern border of the main part of the range of P.
E.V. Ershkova, I.G. Esina, O.G. Grishutkin, A.V. Chkalov   +3 more
doaj   +1 more source

Nitrogen Deposition Enhances Photosynthesis in Moso Bamboo but Increases Susceptibility to Other Stress Factors

Frontiers in Plant Science, 2017
Atmospheric nitrogen (N) deposition can increase the susceptibility of vascular plants to other stresses, but the physiological basis of such a response remains poorly understood.
Rui Zhang, Jiasheng Wu, Quan Li, Quan Li, Heikki Hänninen, Chunju Peng, Chunju Peng, Hang Yao, Xinzhang Song, Xinzhang Song, Yeqing Ying   +10 more
doaj   +1 more source

Chemical interaction between undamaged plants [PDF]

, 2011
Most research on plant–plant chemical interactions has focussed on events following herbivore or pathogen attack. However, undamaged plants also interact chemically as a natural facet of their behaviour, and this may have consequences for insects that ...
Glinwood, Robert, Robert Glinwood, Ninkovic, Velemir, Velemir Ninkovic, Pettersson, Jan, Jan Pettersson, Pettersson, Jan,, Sveriges lantbruksuniversitet., Glinwood, Robert,, Ninkovic, Velemir,   +9 more
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Embolia arterial periférica por projétil de arma de fogo em civis: diagnóstico confirmado pelo ultrassom vascular Peripheral arterial emboli due to bullet projectile: diagnosis confirmed by vascular ultrasound [PDF]

, 2012
Descrevemos um caso de oclusão arterial aguda por projétil de arma de fogo. Devido à raridade do caso (23 relatos em 20 anos) e a importância do diagnóstico diferencial precoce, uma revisão bibliográfica foi realizada.
Silvestre, José Manuel Silva, Wander Eduardo Sardinha, Ramires, Eduardo Durante, Silvestre,José Manuel Silva, Schimit,Gustavo Teixeira Fulton, Ramires,Eduardo Durante, Eduardo Durante Ramires, José Manuel Silva Silvestre, Sardinha,Wander Eduardo, Morais Filho, Domingos De [UNIFESP], Domingos de Morais Filho, Guilon Otávio Santos Tenório, Gustavo Teixeira Fulton Schimit, Morais Filho,Domingos de, Sardinha, Wander Eduardo, Schimit, Gustavo Teixeira Fulton, Tenório, Guilon Otávio Santos, Tenório,Guilon Otávio Santos   +17 more
core   +1 more source