Evolution of th.e hyphal extension rate for different step decreases in water potenti al : A :-3.1 MPa :-3.5 MPa + :-3 .9 MPa (i nit ial water potent ial va lue was 2.8 Mpa)

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Context 1

... Aqualab CX2 (Decagon Devices Inc., USA) . Four dif- ferent water potential (\jf ) levels of the medium were tested in order to measure th e e volution of the turgor pres- sure (in MPa ) as a function of the external water poten- tial (-0. 3, -2 .8, -4.2 ; -7.0). Petri dishes were partially filled with 4 .5 mL of PDA along a band as shown in Fig. 2 and in oculated with 24 hours old mycel ia Dishes were stored at 27"C in bo xes containing 200 mL of wa- ter-x ylitol sol uti on to co ntrol the relative humidi ty of the atmosphere. The water potential of the water-xylitol so- luti on was the same as that of the dishes, so the surrou nd- ing environment was in equ ilibrium with the so ...

Context 2

... an exampl e of I1P determination, Fig. 2 shows th e evolution of the hyphal ex tension rate for an initia l water Table I -Evaluation of I1P val ues for Aspergillus orizae cultivated at different levels of water potential • Valu es within the parentheses represent confidence intervals at 95% potential value of -2.8 MPa and for three different step decreases in water potential ...