THE ROLE OF ANTIOXIDANTS IN DROUGHT TOLERANCE OF TWO NON-SUCCULENT XEROPHYTIC SPECIES , Launaea spinosa (FORSSK.) SCH. BIP. EX KUNTZE AND Leptadenia pyrotechnica (FORSSK.) DECNE.

Document Type : Original Article

Authors

1 Botany Dept., Faculty of Science, (Girls Branch) Al-Azhar University, Cairo, Egypt.

2 Desert Research Center, Mataria, Cairo, Egypt.

Abstract

Enzymatic and non-enzymatic antioxidants effect were studied in two non-succulent xerophytes, Launaea spinosa and Leptadenia pyrotechinca growing naturally at wadi Hagul eastern desert of Egypt .The data revealed that catalase, peroxidase, polyphenol oxidase as well as ᾳ-tocopherol were higher during dry than wet season. The reverse was true for ascorbic acid.