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Abstract
A positive [MATTER UNCLEAR IN PDF FILE]atalase reaction, using a modification of the Graham & [MATTER UNCLEAR IN PDF FILE]arnovsky method, was obtained from the microbodies of [MATTER UNCLEAR IN PDF FILE]pore cells at both developmental stages, as well as from [MATTER UNCLEAR IN PDF FILE]it-membrane-bounded outgrowths from the chloroplasts. The outgrowths showed other morphological similarities with microbodies. This cytochemical finding supports our [MATTER UNCLEAR IN PDF FILE]revious opinion that microbodies may bud off from the [MATTER UNCLEAR IN PDF FILE]hloroplasts, as well as developing from the endoplasmic [MATTER UNCLEAR IN PDF FILE]eticulum. A positive catalase reaction was obtained only within the cell cytoplasm. Other peroxidases are present within the cell wall matrix however.