Abstract:
:The differences between two maize (Zea mays L.) inbred lines and their F1 hybrids in their response to chilling periods of various duration (1, 2, 3 or 4 weeks) and subsequent return to optimum temperatures were analysed by the measurement of the photosystem (PS) 1 and 2 activity, the photosynthetic pigments' content and the activity of antioxidant enzymes. The PS2 activity and the chlorophyll content decreased in plants subjected to 3 or 4 weeks of chilling, but not in those subjected to 1 or 2 weeks of chilling. This decrease was more pronounced in inbreds compared to their hybrids. The activity of superoxide dismutase did not much change with the increasing length of chilling period in the inbreds but decreased in the hybrids, the glutathione reductase activity increased in both types of genotypes but more in the inbred lines, while for ascorbate peroxidase and catalase the changes in parents-hybrids relationship did not show any specific trend. The PS1 activity and the carotenoids' content was not much affected.
journal_name
J Plant Physioljournal_title
Journal of plant physiologyauthors
Holá D,Kocová M,Rothová O,Wilhelmová N,Benesová Mdoi
10.1016/j.jplph.2006.04.016subject
Has Abstractpub_date
2007-07-01 00:00:00pages
868-77issue
7eissn
0176-1617issn
1618-1328pii
S0176-1617(06)00161-1journal_volume
164pub_type
杂志文章abstract::Pokkah boeng disease (PBD) is a foliar disease causing severe losses in sugarcane crop production. Research into resistance mechanisms against the causal agent, Fusarium verticillioides, is particularly important for farmers and researchers. This work based on the comprehensive analysis of metabolic, proteomic, and bi...
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journal_title:Journal of plant physiology
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journal_title:Journal of plant physiology
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journal_title:Journal of plant physiology
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journal_title:Journal of plant physiology
pub_type: 杂志文章
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journal_title:Journal of plant physiology
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journal_title:Journal of plant physiology
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journal_title:Journal of plant physiology
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journal_title:Journal of plant physiology
pub_type: 杂志文章
doi:10.1016/j.jplph.2007.03.008
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journal_title:Journal of plant physiology
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