The effect of indole-3-acetic-acid on the photosynthetic apparatus of Sinapis alba

Zerbe, R.; Wild, Aloysius

doi:10.1007/bf00018224

Cited by 12 publications

(3 citation statements)

References 22 publications

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“…In 1977, Buschmann and Lichtenthaler concluded that cytokinin promotes the light-induced formation of the electron transport chain in Raphanus by increasing the Hill activity (oxygen evolution), P700 concentration (reaction-centre chlorophyll of PSI), and the level of plastoquinone (electron acceptor associated with PSII). However, this was not confirmed in Sinapis (Zerbe and Wild, 1980) where neither an effect on Hill activity nor on the non-cyclic phosphorylation was observed after exogenous application of cytokinin. Evaluation of photosynthetic activity in transgenic plants with elevated endogenous cytokinin content showed no or an only slightly improved photosynthetic activity (Šiffel et al, 1992; Čatský et al, 1993).…”

Section: Cytokinin Affects Photosynthesismentioning

confidence: 81%

Regulation of chloroplast development and function by cytokinin

Cortleven

Schmülling

2015

EXBOTJ

189

123

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A role of the plant hormone cytokinin in regulating the development and activity of chloroplasts was described soon after its discovery as a plant growth regulator more than 50 years ago. Its promoting action on chloroplast ultrastructure and chlorophyll synthesis has been reported repeatedly, especially during etioplast-to-chloroplast transition. Recently, a protective role of the hormone for the photosynthetic apparatus during high light stress was shown. Details about the molecular mechanisms of cytokinin action on plastids are accumulating from genetic and transcriptomic studies. The cytokinin receptors AHK2 and AHK3 are mainly responsible for the transduction of the cytokinin signal to B-type response regulators, in particular ARR1, ARR10, and ARR12, which are transcription factors of the two-component system mediating cytokinin functions. Additional transcription factors linking cytokinin and chloroplast development include CGA1, GNC, HY5, GLK2, and CRF2. In this review, we summarize early and more recent findings of the long-known relationship between the hormone and the organelle and describe crosstalk between cytokinin, light, and other hormones during chloroplast development.

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Section: Cytokinin Affects Photosynthesismentioning

confidence: 81%

Regulation of chloroplast development and function by cytokinin

Cortleven

Schmülling

2015

EXBOTJ

189

123

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“…Changes in photosynthetic activity under prolonged action of light of different qualities are often similar to those observed after treatment with phytohormones [35,43,47,48]. However, there are few reports on the influence of blue or red light on gibberellin content.…”

Section: Introductionmentioning

confidence: 73%

The effect of light quality and gibberellic acid (GA3) on photosynthesis and respiration rates of pea seedlings

1984

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CO2 exchange were measured on pea seedlings (Pisum sativum L. var. Bördi) cultivated from seeds imbibed either in water (C-plants) or in gibberellic acid (GA3) at the concentration of 25 μg/1 (GA-plants), and then grown under 17 W/m(2) blue light (B-plants) or 11 W/m(2) red light (R-plants).When measured under the same light conditions as during growth the net photosynthesis (APS) rate in B-plants was about twice higher than that in R-plants. Dark respiration (DR) rate was 70% higher in B- than in R-plants. Red light retarded the development of photosynthetic activity, but GA3 suppressed this effect. The hormone enhanced net photosynthesis and dark respiration to the same extent.When measured under saturating white light net photosynthesis rate of C-plants was also two times higher in B-plants than in R-plants. Growth conditions had only a slight effect on the APS of GA-plants under white light. APS rates of GA-plants grown under red light were higher under white light than those of C-plants, but lower than those of plants grown under blue light.We assume that blue light induced formation of plants that were adapted to higher light intensity: red light had an opposite effect, whereas gibberellic acid induced formation of plants that were adapted to medium light intensity.

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“…It has also been shown that photosynthesis was inhibited in blade meristems of Alaria esculenta treated with IAA (Bugelin and Bal1976). In addition, Zerbe and Wild (1981) reported that dry weight, soluble reducing sugars, soluble protein, chlorophyll, chlorophyll alb ratio, and the rate of CO 2 fixation were lowered by foliar applications of IAA during the development of the primary leaves of Sinapsis alba. A review by Brenner (1987) outlined the possible control points at which plant growth substances may affect photosynthesis and partitioning of sucrose in developing seeds.…”

Section: Indole-3-acetic Acid and Photosynthesismentioning

confidence: 99%

Plant Growth Substances

Arteca¹

1996

166

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The effect of indole-3-acetic-acid on the photosynthetic apparatus of Sinapis alba

Cited by 12 publications

References 22 publications

Regulation of chloroplast development and function by cytokinin

Regulation of chloroplast development and function by cytokinin

The effect of light quality and gibberellic acid (GA3) on photosynthesis and respiration rates of pea seedlings

Plant Growth Substances

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