Growth and developmental responses of giant duckweed (Spirodela polyrhiza (L.) Schleiden) to external application of abscisic acid, the plant stress hormone

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dc.contributor.advisorMészáros, Ilona
dc.contributor.authorAndonova, Jasna
dc.contributor.departmentDE--Természettudományi és Technológiai Kar--Biológiai és Ökológiai Intézethu_HU
dc.date.accessioned2020-11-20T12:41:18Z
dc.date.available2020-11-20T12:41:18Z
dc.date.created2020-11-20
dc.description.abstractDuckweeds are the model organisms in plant physiology, ecology, ecotoxicology, ecophysiology and are sensitive to various stressful environmental conditions such as heavy metal stress, thermal or heat stress, drought, high salinity, extremely low or high temperature. Abscisic acid is a stress hormone in plants involved in seed dormancy the effect of ABA was tested on two different Spirodela polyrhiza ecotypes (in terms of turion production) in 7-day tests. ABA in larger concentrations induced growth retardation and growth inhibition in both clones. Both clones showed high turion yields (40-60%). Effective concentrations of abscisic acid resulting in 50% growth inhibition (EC50) of the two clones approached 0.1 μmol with a slightly higher value for Clone 2. From time-dose experiments, Clone 2 exhibited slower growth. In correlation to dry matter content, ABA-induced turions and semi-turions of Clone 1 exhibited 2-4 times higher DMC % than the respective fronds in a given treatment between 0.25 and 1 μmol ABA. External ABA-induced significant accumulation of starch in fronds with the highest extent at 1 μmol ABA more significantly in Clone 2.hu_HU
dc.description.correctorSz.G.
dc.description.correctorhbk
dc.description.courseBiochemical Engineeringhu_HU
dc.description.degreeBSc/BAhu_HU
dc.format.extent38hu_HU
dc.identifier.urihttp://hdl.handle.net/2437/298847
dc.language.isoenhu_HU
dc.subjectduckweedhu_HU
dc.subjectabscisic acid
dc.subjectabiotic stress
dc.subject.dspaceDEENK Témalista::Biológiai tudományokhu_HU
dc.titleGrowth and developmental responses of giant duckweed (Spirodela polyrhiza (L.) Schleiden) to external application of abscisic acid, the plant stress hormonehu_HU
dc.title.translatedA Spirodela polyrhiza L.(Schleiden) növekedési és fejlődési válaszai abszcizinsav, növény stresszhormon, kezelésekrehu_HU
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