___

• Abrams MD (1994). Genotypic and phenotypic variation as stress adaptations in temperate tree species: a review of several case studies. Tree Physiol 14: 833-842.
• Araus JL, Slafer GA, Reynolds MP & Royo C (2002). Plant breeding and drought in C3 cereals: What should we breed for? Ann Bot 89: 925-940.
• Arnon DI (1949). Copper enzymes in isolated chloroplasts. Polyphenoloxidase in Beta vulgaris. Plant Physiol 24: 1-15.
• Canne-Hilliker J & Kampny C (1990). Taxonomic signifi cance of leaf and stem anatomy of Agalinis (Scrophulariaceae) from the USA and Canada. Can J Bot 69: 1935-1950.
• Chaves M (2002). Water stress in the regulation of photosynthesis in the fi eld. Ann Bot 89: 907-916.
• Child RD, Summers JE, Babij J, Farrent JW & Bruce DM (2003). Increased resistance to pod chatter is associated with changes in the vascular structure in pods of a resynthesized Brassica napus line. J Exp Bot 54: 1919-1930.
• Fu J & Huang B (2001). Involvement of antioxidants and lipid peroxidation in the adaptation of two cool-season grasses to localized drought stress. Environ Exp Bot 45: 105-114.
• Giorio P, Sorrentino G & d’Andria R (1999). Stomatal behaviour, leaf water status and photosynthetic response in fi eld-grown olive trees under water defi cit. Environ Exp Bot 42: 95-104.
• Gonzales L & Gonzales-Vilar M (2001). Determination of relative water content. In: Reigosa MJ (ed.) Handbook of Plant Ecophysiology Techniques, Dordrecht: Kluwer Academic Publishers, p. 207-212.
• Guerfel M, Baccouri O, Boujnah D, Chaibi W & Zarrouk M (2009). Impacts of water stress on gas exchange, water relations, chlorophyll content and leaf structure in the two main Tunisian olive (Olea europaea L.) cultivars. Sci Hortic 119: 257-263.
• Güvenç A & Duman H (2010). Morphological and anatomical studies of annual taxa of Sideritis L. (Lamiaceae), with notes on chorology in Turkey. Turk J Bot 34: 83-104.
• Jones HG (1998). Stomatal control of photosynthesis and transpiration. J Exp Bot 49: 387-398.
• Karabourniotis G & Bornman J (1999). Penetration of UV-A, UV-B and blue light through the leaf trichome layers of two xeromorphic plants, olive and oak, measured by optical fi bre micropropes. Physiol Plantarum 105: 655-661.
• Kutlu N, Terzi R, Tekeli C, Senel G, Battal P & Kadioglu A (2009). Changes in anatomical structure and levels of endogenous phytohormones during leaf rolling in Ctenanthe setosa. Turk J Biol 33: 115-122.
• Ladjal M, Epron D & Ducrey M (2000). Eff ects of drought preconditioning on thermo tolerance of photosystem II and susceptibility of photosynthesis to heat stress in cedar seedlings. Tree Physiol 20: 1235-1241.
• Larcher W (1995). Physiological Plant Ecology. Springer- Verlag, Berlin, p. 506.
• Lersten NR & Curtis JD (2001). Idioblasts and other unusual internal foliar secretary structures in Scrophulariaceae. Plant Syst Evol 227: 63-73.
• Makbul S, Coşkunçelebi K, Türkmen Z & Beyazoğlu O (2006). Morphology and anatomy of Scrophularia L. (Scrophulariaceae) taxa from NE anatolia. Acta Biol Cracov Bot 48: 33-43.
• Makbul S, Türkmen Z, Coşkunçelebi K & Beyazoğlu O (2008). Anatomical and pollen characters in the genus Epilobium L. (Onagraceae) from northeast anatolia. Acta Biol Cracov Bot 50: 57-67.
• Matsuda K & Rayan A (1990). Anatomy: A key factor regulating plant tissue response to water stress. In: Kaft ernan F (ed.) Environment Injury to Plants, San Diego: Academic Press, p. 290.
• Olmos E, Sanchez-Blanco MJ, Fernandez T & Alarcon JJ (2007). Subcellular eff ects of drought stress in Rosmarinus offi cinalis. Plant Biology 9: 77-84.
• Özörgücü B, Gemici Y & Türkan İ (1991). Karşılaştırmalı Bitki Anatomisi. Ege Üniversitesi, Fen Fakültesi Yayını, No:129, İzmir (in Turkish).
• Pennypacker BW, Leath KL, Stout WL & Hill RR (1990). Technique for simulating fi eld drought stress in greenhouse. Agron J 82: 951-957.
• Pitman WD, Holte C, Conrad BE & Bashaw EC (1983). Histological diff erences in moisture stressed and non-stressed kleingrass forage. Crop Sci 23: 793-795.
• Reddy TY, Reddy VR & Anbumozhi V (2003). Physiological responses to groundnut (Arachis hypogea L.) to drought stress and its amelioration: A critical review. Plant Growth Regul 41: 75-88.
• Reddy AR, Chiatanya KV & Vivekanandan M (2004). Drought- induced responses of photosynthesis and antioxidant metabolism in higher plants. J Plant Physiol 161: 1189-1202.
• Ristic Z & Cass DD (1991). Leaf anatomy of Zea mays L. in response to water shortage and high temperature: A comparison of drought-resistant and drought-sensitive lines. Bot Gaz 152: 173-185.
• Shao HB, Chu LY, Jaleel CA & Zhao CX (2008). Water defi cit stress- induced anatomical changes in higher plants. CR Biol 331: 215- 225.
• Shaw B, Th omas TH & Cooke DT (2002). Responses of sugar beet (Beta vulgaris L.) to drought and nutrient defi ciency stress. Plant Growth Regul 37: 77-83.
• Siddique MRB, Hamid A & Islam MS (2000). Drought stress eff ects on water relations of wheat. Bot Bull Acad Sin 41: 35-39.
• Tardieu F, Lafarge T & Simonneau T (1996). Stomatal control by fed endogenous xylem ABA in sunfl ower: interpretation of correlations between leaf water potential and stomatal conductance in anisohydric species. Plant Cell Environ 19: 75- 84.
• Terzi R, Sağlam A, Kutlu N, Nar H & Kadıoğlu A (2010). Impact of soil drought stress on photochemical effi ciency of photosystem II and antioxidant enzyme activities of Phaseolus vulgaris cultivars. Turk J Bot 34: 1-10.
• Vardar Y (1987). Botanikte Preperasyon Tekniği. Ege Üniversitesi, Fen Fakültesi Yayınları, İzmir (in Turkish).
• Wu Y & Cosgrove DJ (2000). Adaptation of roots to low water potentials by changes in cell wall extensibility and cell wall proteins. J Exp Bot 51: 1543-1553.
• Yentür S (2003). Bitki Anatomisi. İstanbul Üniversitesi, Fen Fakültesi, Biyoloji Bölümü, No: 227, İstanbul (in Turkish),
• Younis ME, El-Shahaby OA, Abo-Hamed SA & Ibrahim AH (2000). Eff ects of water stress on growth, pigments and 14CO2 assimilation in three sorghum cultivars. J Agron Crop Sci 185: 73-82.