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ADVENTITIOUS ROOT INITIATION AND GROWTH IN RELATION TO OXYGEN SUPPLY IN GERMINATING RICE SEEDLINGS
Author(s) -
KORDAN H. A.
Publication year - 1976
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1976.tb01440.x
Subject(s) - primordium , germination , biology , oxygen , botany , lateral root , oxygen deficiency , rice plant , horticulture , chemistry , biochemistry , organic chemistry , arabidopsis , gene , mutant
SUMMARY Adventitious root initiation and root growth occur in rice seedlings germinating under favourable environmental oxygen concentrations whereas rice seedlings germinating at low oxygen concentrations or under anaerobiosis form adventitious root primordia but show no visible adventitious root growth. Transferring the seedlings from unfavourable to favourable oxygen environments results in root growth. Thus the phenomena of adventitious root primordia initiation and of root growth differ profoundly with respect to their oxygen requirements.