Sökning: "phytohormones"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet phytohormones.

1. 1. Analysis of plant growth regulating substances

   Författare :Barbro Andersson; Bo Jansson; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant regulators; phytohormones; pine; spruce; anther; abscisic acid; 3-indoleacetic acid; gibberellin Ag; N- 3-indoleacetyl -aspartic acid; dichlorophene; Amberlite XAD-7; identification; quantification; GC; HPLC; GC-MS; GC-MID; Hormoner;

   Sammanfattning : Natural plant growth regulators (phytohormones) are a group of organic compounds which, in very small amounts, act as regulators of physiological processes in plants.Methods were developed for the analysis of phytohormones in samples from Norway spruce (Picea abies (L.) Karst.) and Scots pine (Pinus sylvestris (L. LÄS MER

3. 2. Genome-wide analyses of Bacillus amyloliquefaciens strains provide insights into their beneficial role on plants

   Författare :Adnan Niazi; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : The innate immunity system of plants provides a basal defence barrier to most microorganisms. However, many plant pathogens have evolved to overcome this defence. Certain bacteria in the PGPB (plant growth promoting bacteria) category that improve plant growth have also been found to improve plant defence against insect pests and pathogens. LÄS MER

4. 3. Genomics and transcriptomics of plant beneficial Serratia spp

   Författare :Saraswoti Neupane; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Plant growth stimulation and antagonism against phytopathogens by rhizobacteria are widely recognised phenomena, but the variation in the underlying causal mechanisms between and within different bacterial taxa is still poorly understood. Some bacteria of the genus Serratia are known to be associated with plant roots, and have potential as possible biocontrol agents in agriculture. LÄS MER

5. 4. Jasmonates in root nodule development

   Författare :Anna Maria Zdyb; Katharina Pawlowski; Sofie Goormachtig; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lotus japonicus; jasmonic acid; actinorhizal; rhizobia; Frankia; root nodule; lipoxygenase; allene oxide cyclase; allene oxide synthase; Casuarina; Datisca; Medicago; Plant physiology; Växtfysiologi; växtfysiologi; Plant Physiology;

   Sammanfattning : Jasmonic acid (JA), its derivatives and its precursor form a group of phytohormones, the jasmonates, representing signal molecules involved in plant stress responses, in the defense against pathogens as well as in development. Elevated levels of JA have been shown to play a role in arbuscular mycorrhiza and in the induction of nitrogen-fixing root nodules. LÄS MER

7. 5. The actinorhizal plant Datisca glomerata : interpreting its symbiotic adaptations by omics-based comparisons with model and non-model organisms

   Författare :Marco Salgado; Katharina Pawlowski; Daniel Lundin; Rene Geurts; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Root nodule symbiosis; nitrogen fixation; actinorhizal; Datisca glomer-ata; Frankia; nodule development; defensin; antimicrobial; carboxylate transporter; phylogenomics; transcriptomics; Plant Physiology; växtfysiologi;

   Sammanfattning : Nitrogen is the element that most often limits plant growth and development. Common agricultural practices rely on the application of large quantities of industrially-produced nitrogen fertilizer, which poses a worldwide environmental threat. Sustainable agriculture encourages the use of biologically fixed nitrogen. LÄS MER