Abstract:
:Plant organ growth changes under genetic and environmental influences can be observed as altered cell proliferation and volume growth. The two aspects are mutually dependent and intricately related. For comprehensive growth analysis, it is necessary to specify the relationship quantitatively. Here, we develop a simple mathematical model for this purpose. Our model assumes that the biological activity of a given organ is proportional to the cell number of the organ and is allocated into three aspects: cell proliferation, volume growth, and organ maintenance. We analyzed the growth of primary roots of Arabidopsis thaliana (L.) Heynh. in one tetraploid and four diploid strains using this model. The analysis determined various growth parameters, such as specific cost coefficients of cell proliferation and volume growth for each strain. The results provide insight into the basis of interstrain variations and ploidy effects in root growth.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Iwamoto A,Satoh D,Furutani M,Maruyama S,Ohba H,Sugiyama Mdoi
10.1007/s10265-005-0247-xsubject
Has Abstractpub_date
2006-03-01 00:00:00pages
85-93issue
2eissn
0918-9440issn
1618-0860journal_volume
119pub_type
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