Effect of different temperature regimes on ethylene production and endogenous levels of IAA, ABA, ACC of tomato El Abd S.O., El Beltagy M.S., Abou-Hadid A.F. in

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in

Choukr-Allah R. (ed.).

Protected cultivation in the Mediterranean region Paris : CIHEAM / IAV Hassan II

Cahiers Options Méditerranéennes; n. 31 1999

pages 161-166

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--- El Abd S.O., El Beltagy M.S., Abou-Hadid A.F. Effect of differen t temperatu re regimes on eth ylen e produ ction an d en dogen ou s levels of IAA, AB A, ACC of tomato. In : Choukr-Allah R. (ed.).

Protected cultivation in the Mediterranean region . Paris : CIHEAM / IAV Hassan II, 1999. p. 161-166 (Cahiers Options Méditerranéennes; n. 31)

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ON

OF ABA, ACC

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'S.O. 2A.F.

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^Giza,^Eupt.

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^Ain

Abstract:

fiom seed sowing in to (5/10"C+1) at the anthesis stage to the endogenous levels of IAA, and ACC. The

the levels of and ACC the of to

The low (lO/l5"C) the levels of

IAA

and ABA and

that of the of 201 16". the

and was an increase of the to the

An indication of changes in the levels of to on the bases of possible of

fiuit set.

'X. ..

an the to

,

does effect and manipulate the possibly via changes in

Lang, 1970).

this to study the effect of at anthesis stage.

15th of July 1994 in the one month fiom

soil mixed with 30% peat

two to

adjusted to (35/24"C), (20/16"C) (10/5"C) 12

incandescent bulb lamps. All sides of the of the

to

two l O m l

10 of tape the at

the stage of fieeze at

-

2OoC, to the endogenous levels of

Cahiers vol. 31 161

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(1 to Lizada and Yang (1979) with modification.

The at the anthesis stage in the the

the same

leaf (0.8-1.20) O m l

The held at 1 h and 1 ml samples of the gas

gas and El-Abd, 1989).

. The 20/16OC and 10/5"C) on endogenous levels of

in of at the

anthesis stage (35124OC)

the level of

IAA

to the (20/16"6=). On

hand, (10/5"C) the level of in all to

in Castel-long.

ACC has the (fig. 2) high the endogenous

to low

the to

to that endogenous level. ABA endogenous level is in

(3). is that the the

niAlicante mCold-set UFloradel EIUC 82 mCaStle long

Figure 1. Effect of three temperature regimes on the endogenous level of in five tomato varieties

Cahiers options VOL 31 162

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2

ci

.

Q

Y

BAlicante meold-set OUC 82 mCastle long

2. Effect of on the endogenous level of ACC in five tomato

On the endogenous level of ABA to

the the in the

it may be evident that Alicante, Cold set

of ABA to

35124OC 2011

OAlicante BCold-set UFloradel 82 mCastle long

Figure 3. Effect of three temperature on the endogenous level of ABA in five tomato

Cahiers Optioms vol. 31 163

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to the to that

35124OC 2011 lo15°c

EIAlicante .Cold-set OFloradel UUC 82 WCastie long

Figure 4. Effkct of three temperature regimes on the endogenous level of Ethylene in fwe tomato varieties

Changes in in plant tissue can to changes in synthesis,

is

that

the effect of

of C14 with a minimum

of (2-7°C) and an in

suggesting a Auxin system 1979). An

level of endogenous Auxin in tomato to high to 40°C given 0-3 days

an indication of a the level of &e

level). Although data the effmt on

endogenous ABA et al., 198l), in should be mentioned

no 'is the goWh

as ?elated to set G u o et al., 1978).

of ACC to et al.,

198 1). by

and found that ACC level, ACC all

at

to in this work a

to the level of ACC in a with and synthesis and

such component in a An belwen the thee of

(I& ABA and ACC) may have an

Auxin biosynthesis, abscisic acid was found to of cellulose

(Abeles, 1973).

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formed of the status and balance of

will be to study

the status in pollinated and Unpohated udtx

A~~~~~ F.B., (1973). 302p.

law

A.; AC. Burgson; erson; T. Solomos and (1981). Some

the acid to ethylene.

80-84.

m e , J.C. and (1968). on growth

in the “Bing” Soc. 9 2 1 13-1 18.

aie, J.; W.F.

cam .

^Seeelg,^(1981).

cool J. Soc.

106: 11-13.

W.P. and Sachs, (1967). of

90: 361-364.

S., (1967). Auxin tomato fiuit at stages of its development with special

to and cell physiol. 8: 15-22.

C.G.; B.W. Chen; Chou; Tsai and T.S. Tsay, (1978). Tomato h i t set at high

1st P. 94-108.

A.,

(1970). and metabolism. Ann.

570.

A; Adv. Chem., 28: 71-79.

S.F. Yang, (1979). A sipple l-

1

&tumba, (19

.

Studies on the on (1979). The effect of

chilling- sensitive and chilliig- 146: 603-605.

(1947)* of growth development. Natl.

Acad. Sci. U.$. 33: 303-312.

J. Bukovac, (1966).

l). of seasomal in

contootn Dou@

.

thesis, Univ. College of

165

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L.) Plant Physiol. 66: 841-843.

Wang, C.Y.; Adams (1982) Chilling-induced ethylene production cucumbers (Cucumis satins Plant Physiol. 69: 424-427.

Cahiers @tìom VOL 31 166