The role of cell wall peroxidase in the inhibition of leaf and fruit growth
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The aim of the work presented was to investigate the role of cell wall bound peroxidase in the inhibition of leaf and fruit growth during unfavorable environmental conditions. In the first experiment, plants of two maize genotypes, differing in drought resistance and growth dynamics, were subjected to drought in order to observe leaf growth parameters (LER and SER)
in parallel with bulk and segmental peroxidase activity in the growth zone.
The results obtained indicated that drought significantly reduced LER, length
of elongation zone and local growth rates within it in both genotypes.
Bulk peroxidase activity was increased in both genotypes to different degrees
(143% in low-LER and susceptible genotype and 238% in high-LER and resistant
genotype) while segmental peroxidase activity also increased in almost
every segment of the elongation zone with notable peaks in some regions.
In the second experiment the same maize genotypes were subjected to nitrogen
deficiency, where gr...owth parameters and peroxidase activity were observed
in the division and elongation zone separately. Nitrogen deficiency also
caused a reduction of LER, cell division and elongation rate and shortening
of the growth zone. This was followed by a significant increase in peroxidase
activity in both regions of growth zones: in the low LER genotype this increase
was expressed most in division zone, while in all other regions investigated
the values were almost the same.
The third experiment includes the effect of a partial root drying (PRD) treatment
on tomato fruit growth and peroxidase activity in cell walls of fruit epidermis.
Results obtained in all experiments allowed us to confirm that under
stress conditions cell wall associated peroxidase plays an important role in
biochemical inhibition of leaf and fruit growth.
Кључне речи:
growth / maize / tomato / leaf / fruit / LER / SER / cell wall / peroxidase activityИзвор:
Proceeding of the European workshop on environmental stress and sustainable agriculture, Varna, Bulgaria, 2002, Bulgarian Journal of Plant Physiology, Special issues, 2003, 264-272URI
http://www.bio21.bas.bg/ipp/gapbfiles/essa-03/03_essa_264-272.pdfhttp://aspace.agrif.bg.ac.rs/handle/123456789/6525
Институција/група
Poljoprivredni fakultetTY - JOUR AU - Djaković, T. AU - Jovanović, Z. PY - 2003 UR - http://www.bio21.bas.bg/ipp/gapbfiles/essa-03/03_essa_264-272.pdf UR - http://aspace.agrif.bg.ac.rs/handle/123456789/6525 AB - The aim of the work presented was to investigate the role of cell wall bound peroxidase in the inhibition of leaf and fruit growth during unfavorable environmental conditions. In the first experiment, plants of two maize genotypes, differing in drought resistance and growth dynamics, were subjected to drought in order to observe leaf growth parameters (LER and SER) in parallel with bulk and segmental peroxidase activity in the growth zone. The results obtained indicated that drought significantly reduced LER, length of elongation zone and local growth rates within it in both genotypes. Bulk peroxidase activity was increased in both genotypes to different degrees (143% in low-LER and susceptible genotype and 238% in high-LER and resistant genotype) while segmental peroxidase activity also increased in almost every segment of the elongation zone with notable peaks in some regions. In the second experiment the same maize genotypes were subjected to nitrogen deficiency, where growth parameters and peroxidase activity were observed in the division and elongation zone separately. Nitrogen deficiency also caused a reduction of LER, cell division and elongation rate and shortening of the growth zone. This was followed by a significant increase in peroxidase activity in both regions of growth zones: in the low LER genotype this increase was expressed most in division zone, while in all other regions investigated the values were almost the same. The third experiment includes the effect of a partial root drying (PRD) treatment on tomato fruit growth and peroxidase activity in cell walls of fruit epidermis. Results obtained in all experiments allowed us to confirm that under stress conditions cell wall associated peroxidase plays an important role in biochemical inhibition of leaf and fruit growth. T2 - Proceeding of the European workshop on environmental stress and sustainable agriculture, Varna, Bulgaria, 2002, Bulgarian Journal of Plant Physiology, Special issues T1 - The role of cell wall peroxidase in the inhibition of leaf and fruit growth EP - 272 SP - 264 UR - https://hdl.handle.net/21.15107/rcub_agrospace_6525 ER -
@article{ author = "Djaković, T. and Jovanović, Z.", year = "2003", abstract = "The aim of the work presented was to investigate the role of cell wall bound peroxidase in the inhibition of leaf and fruit growth during unfavorable environmental conditions. In the first experiment, plants of two maize genotypes, differing in drought resistance and growth dynamics, were subjected to drought in order to observe leaf growth parameters (LER and SER) in parallel with bulk and segmental peroxidase activity in the growth zone. The results obtained indicated that drought significantly reduced LER, length of elongation zone and local growth rates within it in both genotypes. Bulk peroxidase activity was increased in both genotypes to different degrees (143% in low-LER and susceptible genotype and 238% in high-LER and resistant genotype) while segmental peroxidase activity also increased in almost every segment of the elongation zone with notable peaks in some regions. In the second experiment the same maize genotypes were subjected to nitrogen deficiency, where growth parameters and peroxidase activity were observed in the division and elongation zone separately. Nitrogen deficiency also caused a reduction of LER, cell division and elongation rate and shortening of the growth zone. This was followed by a significant increase in peroxidase activity in both regions of growth zones: in the low LER genotype this increase was expressed most in division zone, while in all other regions investigated the values were almost the same. The third experiment includes the effect of a partial root drying (PRD) treatment on tomato fruit growth and peroxidase activity in cell walls of fruit epidermis. Results obtained in all experiments allowed us to confirm that under stress conditions cell wall associated peroxidase plays an important role in biochemical inhibition of leaf and fruit growth.", journal = "Proceeding of the European workshop on environmental stress and sustainable agriculture, Varna, Bulgaria, 2002, Bulgarian Journal of Plant Physiology, Special issues", title = "The role of cell wall peroxidase in the inhibition of leaf and fruit growth", pages = "272-264", url = "https://hdl.handle.net/21.15107/rcub_agrospace_6525" }
Djaković, T.,& Jovanović, Z.. (2003). The role of cell wall peroxidase in the inhibition of leaf and fruit growth. in Proceeding of the European workshop on environmental stress and sustainable agriculture, Varna, Bulgaria, 2002, Bulgarian Journal of Plant Physiology, Special issues, 264-272. https://hdl.handle.net/21.15107/rcub_agrospace_6525
Djaković T, Jovanović Z. The role of cell wall peroxidase in the inhibition of leaf and fruit growth. in Proceeding of the European workshop on environmental stress and sustainable agriculture, Varna, Bulgaria, 2002, Bulgarian Journal of Plant Physiology, Special issues. 2003;:264-272. https://hdl.handle.net/21.15107/rcub_agrospace_6525 .
Djaković, T., Jovanović, Z., "The role of cell wall peroxidase in the inhibition of leaf and fruit growth" in Proceeding of the European workshop on environmental stress and sustainable agriculture, Varna, Bulgaria, 2002, Bulgarian Journal of Plant Physiology, Special issues (2003):264-272, https://hdl.handle.net/21.15107/rcub_agrospace_6525 .