Search for dissertations about: "jasmonic acid"

Showing result 1 - 5 of 12 swedish dissertations containing the words jasmonic acid.

  2. 1. Novel Fatty Acid Dioxygenases of Human and Plant Pathogenic Fungi : Studies by Gene Deletion and Expression

    Author : Fredrik Jernerén; Ernst Oliw; Ivo Feussner; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; aspergilli; dioxygenase; oxygenase; Magnaporthe oryzae; Gaeumannomyces graminis; Lasiodiplodia theobromae; jasmonic acid; linoleate diol synthase; cyclooxygenase; prostaglandin H synthase; cytochrome P450; oxylipin; hydroperoxide isomerase; allene oxide synthase; Pharmaceutical pharmacology; Farmaceutisk farmakologi; Biochemical Pharmacology; Biokemisk farmakologi;

    Abstract : The dioxygenase-cytochrome P450 fusion proteins (DOX-CYP) comprise a heme-containing enzyme family that shares structural and catalytic properties with mammalian prostaglandin H (PGH) synthases. 7,8-Linoleate diol synthase (7,8-LDS) of Gaeumannomyces graminis was first characterized, and DOX-CYP enzymes are of mechanistic and biological interest. READ MORE

  4. 2. Jasmonates in root nodule development

    Author : Anna Maria Zdyb; Katharina Pawlowski; Sofie Goormachtig; Stockholms universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

  5. 3. Induced defence responses in Picea abies triggered by Heterobasidion annosum s.l

    Author : Jenny Arnerup Christiansson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Norway spruce [Picea abies (L.)Karst.] is a key tree species for forest industry in Europe and stem and butt rot caused by Heterobasidion parviporum (Fr.) Niemelä & Korhonen is one of its major disease problems. READ MORE

  6. 4. Stress responses of Arabidopsis plants with a varying level of non-photochemical quenching

    Author : Hanna Johansson Jänkänpää; Stefan Jansson; Barbara Demmig-Adams; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis; NPQ; PsbS; photosynthesis; field experiment; metabolomics; Physiological Botany; fysiologisk botanik; molekylärbiologi; Molecular Biology;

    Abstract : When light energy input exceeds the capacity for photosynthesis the plant need to dissipate the excess energy and this is done through non-photo-chemical quenching (NPQ). Photochemical quenching (photosynthesis), NPQ and fluorescence are three alternative faiths of excited chlorophylls. PsbS associates to photosystem II and is involved in NPQ. READ MORE

  7. 5. Resistance to early blight in potato and genetic structure of the pathogen population in Southeast Sweden

    Author : Firuz Odilbekov; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Potato early blight caused by the necrotrophic fungus Alternaria solani is a common foliar disease in many potato-growing regions. Application of fungicides is commonly used to effectively control the disease, although they are undesirable due to environmental consequences. READ MORE