Bursaphelenchus xylophilus– phytosanitäre Einfuhrkontrollen an Holz von Coniferales im Land Brandenburg     

Wolfram Pohl 《Gesunde Pflanzen》2003,55(1):13-20

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Morphological characterization and immunohistochemical detection of the proinflammatory cytokines IL-1β, IL-17A,and TNF-α in lung lesions associated with contagious bovine pleuropneumonia     

Anja Sterner-Kock  Wolfram Haider  Flavio Sacchini  Anne Liljander  Jochen Meens  Jane Poole  Maria Guschlbauer  Martin Heller  Jan Naessens  Joerg Jores 《Tropical animal health and production》2016,48(3):569-576

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Zur Einstäubung von Getreide mit Kontaktinsektiziden     

Dr. Rosemarie Wolfram 《Journal of pest science》1952,25(5):73-75

Ohne Zusammenfassung  相似文献   

Rate of stomatal opening, shoot hydraulic conductance and photosynthetic characteristics in relation to leaf abscisic acid concentration in six temperate deciduous trees     

Aasamaa K  Sõber A  Hartung W  Niinemets U 《Tree physiology》2002,22(4):267-276

Correlations between leaf abscisic acid concentration ([ABA]), stomatal conductance (gs), rate of stomatal opening in response to an increase in leaf water potential (si), shoot hydraulic conductance (L) and photosynthetic characteristics were examined in saplings of six temperate deciduous tree species: Acer platanoides L., Padus avium Mill., Populus tremula L., Quercus robur L., Salix caprea L. and Tilia cordata Mill. Species-specific values of foliar [ABA] were negatively related to the mean values of gs, si, L and light- and CO2- saturated net photosynthesis (P(max)), thus providing strong correlative evidence of a scaling of foliar gas exchange and hydraulic characteristics with leaf endogenous [ABA]. In addition, we suggest that mean gs, si, L and Pmax for mature leaves may partly be determined by the species-specific [ABA] during leaf growth. The most drought-intolerant species had the lowest [ABA] and the highest gs, suggesting that interspecific differences in [ABA] may be linked to differences in species-specific water-use efficiency. Application of high concentrations of exogenous ABA led to large decreases in gs, si and P(max), further underscoring the direct role of ABA in regulating stomatal opening and photosynthetic rate. Exogenous ABA also decreased L, but the decreases were considerably smaller than the decreases in gs, si and Pmax. Thus, exogenous ABA predominantly affected the stomata directly, but modification of L by ABA may also be an important mechanism of ABA action. We conclude that interspecific variability in endogenous [ABA] during foliage growth and in mature leaves provides an important factor explaining observed differences in L, gs, si and Pmax among temperate deciduous tree species.  相似文献   

Dietary conjugated linoleic acid (CLA) intake assessment and possible biomarkers of CLA intake in young women     

Fremann D  Linseisen J  Wolfram G 《Public health nutrition》2002,5(1):73-80

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Harvest maturity specification for mango fruit (Mangifera indica L. ‘Chok Anan’) in regard to long supply chains     

Stefanie Kienzle  Pittaya Sruamsiri  Reinhold Carle  Suparat Sirisakulwat  Wolfram Spreer  Sybille Neidhart   《Postharvest Biology and Technology》2011,61(1):41-55

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Climate trends and global crop production since 1980   总被引：14，自引：0，他引：14  

Lobell DB  Schlenker W  Costa-Roberts J 《Science (New York, N.Y.)》2011,333(6042):616-620

Efforts to anticipate how climate change will affect future food availability can benefit from understanding the impacts of changes to date. We found that in the cropping regions and growing seasons of most countries, with the important exception of the United States, temperature trends from 1980 to 2008 exceeded one standard deviation of historic year-to-year variability. Models that link yields of the four largest commodity crops to weather indicate that global maize and wheat production declined by 3.8 and 5.5%, respectively, relative to a counterfactual without climate trends. For soybeans and rice, winners and losers largely balanced out. Climate trends were large enough in some countries to offset a significant portion of the increases in average yields that arose from technology, carbon dioxide fertilization, and other factors.  相似文献   

Recombination of human mitochondrial DNA   总被引：1，自引：0，他引：1  

Kraytsberg Y  Schwartz M  Brown TA  Ebralidse K  Kunz WS  Clayton DA  Vissing J  Khrapko K 《Science (New York, N.Y.)》2004,304(5673):981

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Atmospheric carbon injection linked to end-Triassic mass extinction     

Ruhl M  Bonis NR  Reichart GJ  Sinninghe Damsté JS  Kürschner WM 《Science (New York, N.Y.)》2011,333(6041):430-434

The end-Triassic mass extinction (~201.4 million years ago), marked by terrestrial ecosystem turnover and up to ~50% loss in marine biodiversity, has been attributed to intensified volcanic activity during the break-up of Pangaea. Here, we present compound-specific carbon-isotope data of long-chain n-alkanes derived from waxes of land plants, showing a ~8.5 per mil negative excursion, coincident with the extinction interval. These data indicate strong carbon-13 depletion of the end-Triassic atmosphere, within only 10,000 to 20,000 years. The magnitude and rate of this carbon-cycle disruption can be explained by the injection of at least ~12 × 10(3) gigatons of isotopically depleted carbon as methane into the atmosphere. Concurrent vegetation changes reflect strong warming and an enhanced hydrological cycle. Hence, end-Triassic events are robustly linked to methane-derived massive carbon release and associated climate change.  相似文献   

Effect of VA Mycorrhiza on Dry Weight and Phosphorus Content in Shoots of Cereal Crops Fertilized with Rock Phosphates at Different Soil pH and Temperature Levels     

BjRn Fabig  Atef M. Moawad  Wolfram Achtnich 《植物养料与土壤学杂志》1989,152(2):255-259

The influence of the VAM fungi Glomus macrocarpum and G. manihotis on shoot dry weight and P contents in the shoots of various graminaceous species was studied in pot culture experiments. The treatments included fertilization with different rock phosphates, four soil pH levels (pH 4.5, 5.5, 6.5, 7.5) and four soil temperatures (20, 25, 30, 35°C). The rock phosphate treatments were compared with soluble phosphate (mono calcium phosphate, MCP) and with a check (no P fertilizer, OP). Increases of shoot dry weight up to 143% could be found with mycorrhizal Triticum aestivum using Kodjari rock phosphate as P source. In the presence of VAM, Sorghum bicolor and T. aestivum fertilized with any of the rock phosphates, except Kola, produced yields comparable with those of plants fertilized with MCP, at soil pH 5.5 to 7.5 and at 25°C soil temperature. As the soil pH increased from 5.5 to 7.5 dry weight declined. Likewise, yields decreased with increasing soil temperature and at 35°C VAM showed no effect in all treatments.  相似文献