ULTRASTRUCTURAL CHANGES IN ORIZA SATIVA, Echinochloa colonum AND Echinochloa crus-galli TREATED WITH FENOXAPROP-P-ETHYL AND PENOXSULAM HERBICIDES.

El-Nady, M F.; Zein, A.; Ashry, M. A.; Abdel-dayem, Sh.

doi:10.21608/jppp.2012.83794

ULTRASTRUCTURAL CHANGES IN ORIZA SATIVA, Echinochloa colonum AND Echinochloa crus-galli TREATED WITH FENOXAPROP-P-ETHYL AND PENOXSULAM HERBICIDES.

Document Type : Original Article

Authors

¹ Dept. of Agric. Botany, Fac. of Agric., Kafrelsheikh Univ., Egypt

² Dept. of Pesticides Fac. of Agric., Kafrelsheikh Univ., Egypt

10.21608/jppp.2012.83794

Abstract

Cytological changes in rice Oriza sativa (L.) cv. Sakha 104, and two different rice weeds i.e. Echinochloa colonum (L.) and Echinochoa crus-galli (L.) after foliar application with fenoxaprop-P-ethyl at rate of 26.25 g a.i /fed. and penoxsulamat rate of 10 g a.i/fed. were investigated. Mesophyll cell plasmolysis and unevenly thickened cell walls were showed in O. sativa after foliar application with fenoxaprop-P-ethyl. Mitochondria multi- fission and increasing in mitochondria number per cell were found in rice and E. crus-galli mesophyll cells. Thylakoid membrane reduction and plastoglubule were noticed in chloroplast of mesophyll cells in E. colonum were recorded. Furthermore, re-growth of E. crus-galli and E. colonum occurred after foliar application with fenoxaprop-P-ethyl. These findings will improve our understanding for the tested herbicides mode of action in wanted and unwanted plants at ultrastructural levels.

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