Research output: Contribution to journal › Article › peer-review
Regulation of sulfur deprivation-induced expression of the ferredoxinencoding FDX5 gene Chlamydomonas reinhardtii in aerobic conditions. / Zalutskaya, Z.; Minaeva, E.; Filina, V.; Ostroukhova, M.; Ermilova, E.
In: Plant Physiology and Biochemistry, Vol. 123, 01.02.2018, p. 18-23.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Regulation of sulfur deprivation-induced expression of the ferredoxinencoding FDX5 gene Chlamydomonas reinhardtii in aerobic conditions
AU - Zalutskaya, Z.
AU - Minaeva, E.
AU - Filina, V.
AU - Ostroukhova, M.
AU - Ermilova, E.
PY - 2018/2/1
Y1 - 2018/2/1
N2 - The unicellular green alga Chlamydomonas reinhardtii reacts to sulfur (S) starvation with the increased expression of numerous genes. One gene which is induced in illuminated anaerobic S-deprived cells is the ferredoxin-5 gene (FDX5). To test FDX5 transcriptional regulation in aerobic cultures, we used a real-time PCR analysis and an artificial microRNA approach. We demonstrated that FDX5 gene is controlled by S deprivation independently of anoxia-treatment. The Ser/Thr kinase SNRK2.1 is necessary for expression of FDX5 during deprivation to S. Copper response regulator 1 (CRR1) is not involved in FDX5 up-regulation in S-deficient cells under aerobic conditions. Furthermore, expression of FDX5 is negatively regulated by nitric oxide (NO). Moreover, truncated hemoglobin 1 (THB1) underexpression resulted in the decrease in FDX5 transcript abundance in S-deficient cells under aerobic conditions. Together, our results imply that the FDX5 gene is controlled by NO in THB1-dependent pathway under conditions of depleted S supply.
AB - The unicellular green alga Chlamydomonas reinhardtii reacts to sulfur (S) starvation with the increased expression of numerous genes. One gene which is induced in illuminated anaerobic S-deprived cells is the ferredoxin-5 gene (FDX5). To test FDX5 transcriptional regulation in aerobic cultures, we used a real-time PCR analysis and an artificial microRNA approach. We demonstrated that FDX5 gene is controlled by S deprivation independently of anoxia-treatment. The Ser/Thr kinase SNRK2.1 is necessary for expression of FDX5 during deprivation to S. Copper response regulator 1 (CRR1) is not involved in FDX5 up-regulation in S-deficient cells under aerobic conditions. Furthermore, expression of FDX5 is negatively regulated by nitric oxide (NO). Moreover, truncated hemoglobin 1 (THB1) underexpression resulted in the decrease in FDX5 transcript abundance in S-deficient cells under aerobic conditions. Together, our results imply that the FDX5 gene is controlled by NO in THB1-dependent pathway under conditions of depleted S supply.
KW - Chlamydomonas reinhardtii
KW - Copper response regulator 1
KW - Ferredoxin-5
KW - Nitric oxide
KW - Sulfur deprivation
KW - Truncated hemoglobin 1
UR - http://www.scopus.com/inward/record.url?scp=85036650414&partnerID=8YFLogxK
U2 - 10.1016/j.plaphy.2017.11.024
DO - 10.1016/j.plaphy.2017.11.024
M3 - Article
VL - 123
SP - 18
EP - 23
JO - Plant Physiology and Biochemistry
JF - Plant Physiology and Biochemistry
SN - 0981-9428
ER -
ID: 35775183