Plants absorb light for photosynthesis, but not all is used. Excess light energy may lead to photoinhibition of photosynthesis and irreversible photooxidative damage. Plants have evolved mechanisms for energy dissipation under high light stress. One such response may involve production of ELIP.
It is of interest to know what signal(s) may be involved in ELIP expression. My hypothesis is that redox status of the chloroplast photosynthetic electron transport Chain (PETC) and/or chlororespiration may induce ELIP expression. Using the Arabidopsis thaliana immutans (im) chlororespiratory mutant, this hypothesis was tested. Etiolated seedlings of this variegated mutant were subjected to various light intensities over 0-24 hr period and ELIP mRNA levels were analyzed. These were compared with the wild type plants treated in the same manner.
It was found that mature thylakoids may not be required for ELIP expression, and that both photoreceptor-dependent and independent components may be involved in ELIP expression.
","abstract_html":"<p>Plants absorb light for photosynthesis, but not all is used. Excess light energy may lead to photoinhibition of photosynthesis and irreversible photooxidative damage. Plants have evolved mechanisms for energy dissipation under high light stress. One such response may involve production of <em>ELIP</em>.</p> <p>It is of interest to know what signal(s) may be involved in <em>ELIP</em> expression. My hypothesis is that redox status of the chloroplast photosynthetic electron transport Chain (PETC) and/or chlororespiration may induce <em>ELIP</em> expression. Using the <em>Arabidopsis thaliana immutans (im)</em> chlororespiratory mutant, this hypothesis was tested. Etiolated seedlings of this variegated mutant were subjected to various light intensities over 0-24 hr period and <em>ELIP</em> mRNA levels were analyzed. These were compared with the wild type plants treated in the same manner.</p> <p>It was found that mature thylakoids may not be required for <em>ELIP</em> expression, and that both photoreceptor-dependent and independent components may be involved in <em>ELIP</em> expression.</p>","abstract_has_math":false,"creators":["Oza, Preeti Bhavanishanker"],"institution":null,"degree_name":"MS (Master of Science)","degree_level":"Thesis - restricted","degree_discipline":"Biology","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2001,"date_issued":"2001-12-01T08:00:00Z","date_published":"2001-12-01T08:00:00Z","updated_at":"2026-07-24T02:18:50Z","subjects":["Photoinhibition","Chlororespiration","ELIP","High-light Stress","De-etiolation","Redox","Photoreceptors","Arabidopsis","Biology","Life Sciences"],"languages":[],"rights":["Copyright by the authors."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://dc.etsu.edu/etd/42","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Oza, Preeti Bhavanishanker"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["1900-01-01T08:00:00Z"]},{"key":"dc:date.issued","label":"Date","values":["2001-12-01T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis - restricted"]},{"key":"thesis:degree_name","label":"Degree Name","values":["MS (Master of Science)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Photoinhibition","Chlororespiration","ELIP","High-light Stress","De-etiolation","Redox","Photoreceptors","Arabidopsis","Biology","Life Sciences"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["Copyright by the authors."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://dc.etsu.edu/context/etd/article/1092/viewcontent/ozap120501.pdf","https://dc.etsu.edu/etd/42"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Plants absorb light for photosynthesis, but not all is used. Excess light energy may lead to photoinhibition of photosynthesis and irreversible photooxidative damage. Plants have evolved mechanisms for energy dissipation under high light stress. One such response may involve production of ELIP.
It is of interest to know what signal(s) may be involved in ELIP expression. My hypothesis is that redox status of the chloroplast photosynthetic electron transport Chain (PETC) and/or chlororespiration may induce ELIP expression. Using the Arabidopsis thaliana immutans (im) chlororespiratory mutant, this hypothesis was tested. Etiolated seedlings of this variegated mutant were subjected to various light intensities over 0-24 hr period and ELIP mRNA levels were analyzed. These were compared with the wild type plants treated in the same manner.
It was found that mature thylakoids may not be required for ELIP expression, and that both photoreceptor-dependent and independent components may be involved in ELIP expression.
"]},{"key":"dc:title","label":"Title","values":["Investigation of mRNA Expression of Early Light Inducible Protein (ELIP) under High Light Stress Arabidopsis thaliana."]}]}],"canonical_facts":{"dc:creator":["Oza, Preeti Bhavanishanker"],"dc:date.available":["1900-01-01T08:00:00Z"],"dc:date.issued":["2001-12-01T08:00:00Z"],"dc:description.abstract":["Plants absorb light for photosynthesis, but not all is used. Excess light energy may lead to photoinhibition of photosynthesis and irreversible photooxidative damage. Plants have evolved mechanisms for energy dissipation under high light stress. One such response may involve production of ELIP.
It is of interest to know what signal(s) may be involved in ELIP expression. My hypothesis is that redox status of the chloroplast photosynthetic electron transport Chain (PETC) and/or chlororespiration may induce ELIP expression. Using the Arabidopsis thaliana immutans (im) chlororespiratory mutant, this hypothesis was tested. Etiolated seedlings of this variegated mutant were subjected to various light intensities over 0-24 hr period and ELIP mRNA levels were analyzed. These were compared with the wild type plants treated in the same manner.
It was found that mature thylakoids may not be required for ELIP expression, and that both photoreceptor-dependent and independent components may be involved in ELIP expression.
"],"dc:identifier":["https://dc.etsu.edu/context/etd/article/1092/viewcontent/ozap120501.pdf","https://dc.etsu.edu/etd/42"],"dc:rights":["Copyright by the authors."],"dc:subject":["Photoinhibition","Chlororespiration","ELIP","High-light Stress","De-etiolation","Redox","Photoreceptors","Arabidopsis","Biology","Life Sciences"],"dc:title":["Investigation of mRNA Expression of Early Light Inducible Protein (ELIP) under High Light Stress Arabidopsis thaliana."],"thesis:degree_discipline":["Biology"],"thesis:degree_level":["Thesis - restricted"],"thesis:degree_name":["MS (Master of Science)"]},"updated_at":"2026-07-24T02:18:50Z"}