Limiting Factors in Photosynthesis

Spiller, Susan; Terry, Norman

doi:10.1104/pp.65.1.121

Cited by 196 publications

(59 citation statements)

References 20 publications

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“…The rapid chlorophyll content and photosynthetic efficiency reduction indicates that these parameters require sustained GB03 activation. The biogenesis of the photosynthetic apparatus makes heavy demands on iron availability, 23 consistent with the increase of chlorophyll content and photosynthetic efficiency, total iron content increases over the two and three week time interval (Fig. 3E and F).…”

Section: Resultsmentioning

confidence: 85%

Sustained growth promotion in Arabidopsis with long-term exposure to the beneficial soil bacteriumBacillus subtilis(GB03)

Xie

Zhang

Paré

2009

Plant Signaling & Behavior

134

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Volatile emissions from the commercial growth promoting soil bacterium Bacillus subtilis (GB03) are effective in augmenting short-term growth, photosynthetic capacity and salt tolerance in Petri-dish grown arabidopsis seedlings. In contrast, the impact sustained GB03 volatile exposure on plant growth and development has yet to be examined. here is provided physical and physiological data establishing that bacterial volatiles induce long-term growth promotion, elevated photosynthetic capacity and iron accumulation, as well as delayed albeit higher seed count compared with water-treated control plants. Plants were grown unrestricted in double Magenta boxes containing solid MS media for up to twelve weeks with GB03 volatiles introduced in separate containers within the chamber so that plant bacterial interactions were only by airborne transmission. These results establish that GB03 volatiles induce sustained beneficial effects on Arabidopsis growth including robust and extended vegetative growth followed by elevated seed set.

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Section: Resultsmentioning

confidence: 85%

Sustained growth promotion in Arabidopsis with long-term exposure to the beneficial soil bacteriumBacillus subtilis(GB03)

Xie

Zhang

Paré

2009

Plant Signaling & Behavior

134

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“…Vastly reduced thylakoid systems have been demonstrated in the chloroplasts of Fe-deficient (13,18) and anaerobic (19) tissue.…”

Section: Resultsmentioning

confidence: 99%

Effects of Iron and Oxygen on Chlorophyll Biosynthesis

Spiller¹,

Castelfranco²,

Castelfranco³

1982

Plant Physiol.

124

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“…In this regard, Fe deficiency stress is correlated with changes in chloroplast ultrastructure (Spiller and Terry, 1980) and decreased expression of the small and large subunits of Rubisco, of chlorophyll a/b-binding proteins, and of chlorophyll, among other proteins (Spiller et al, 1987;Winder and Nishio, 1995). When grown under Fe-limiting conditions, plants could compensate for the lack of Fe through an increased Fe uptake capacity.…”

mentioning

confidence: 99%

Response of Arabidopsis to Iron Deficiency Stress as Revealed by Microarray Analysis

et al. 2001

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Gene expression in response to Fe deficiency was analyzed in Arabidopsis roots and shoots through the use of a cDNA collection representing at least 6,000 individual gene sequences. Arabidopsis seedlings were grown 1, 3, and 7 d in the absence of Fe, and gene expression in roots and shoots was investigated. Following confirmation of data and normalization methods, expression of several sequences encoding enzymes known to be affected by Fe deficiency was investigated by microarray analysis. Confirmation of literature reports, particularly for changes in enzyme activity, was not always possible, but changes in gene expression could be confirmed. An expression analysis of genes in glycolysis, the tricarboxylic acid cycle, and oxidative pentose phosphate pathway revealed an induction of several enzymes within 3 d of Fe-deficient growth, indicating an increase in respiration in response to Fe deficiency. In roots, transcription of sequences corresponding to enzymes of anaerobic respiration was also induced, whereas in shoots, the induction of several genes in gluconeogenesis, starch degradation, and phloem loading was observed. Thus, it seemed likely that the energy demand in roots required for the Fe deficiency response exceeded the capacity of oxidative phosphorylation, and an increase in carbon import and anaerobic respiration were required to maintain metabolism.

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Limiting Factors in Photosynthesis

Abstract: It has been proposed that Fe stress may be used in the study of limiting factors in photosynthesis as an expermental means of varying photochemical capacity in vivo (Plant Physiol 1980 65: 114-120

Cited by 196 publications

References 20 publications

Sustained growth promotion in Arabidopsis with long-term exposure to the beneficial soil bacteriumBacillus subtilis(GB03)

Sustained growth promotion in Arabidopsis with long-term exposure to the beneficial soil bacteriumBacillus subtilis(GB03)

Effects of Iron and Oxygen on Chlorophyll Biosynthesis

Response of Arabidopsis to Iron Deficiency Stress as Revealed by Microarray Analysis

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