Chlorophyll fluorescence as a selection tool for cold tolerance of photosynthesis in maize (Zea mays L.)

Fracheboud, Yvan; Haldimann, Pierre; Leipner, Jörg; Stamp, P.

doi:10.1093/jxb/50.338.1533

Cited by 198 publications

(139 citation statements)

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“…Chlorophyll fluorescence analysis is an efficient, rapid, and sensitive method used to investigate the photosynthetic performance of plants, non-destructively, under various abiotic stresses (Fracheboud et al 1999). This method provides insight into the plant's ability to tolerate environmental stresses, and into the extent of damage caused by stresses to the photosynthetic apparatus (Maxwell and Johnson 2000).…”

Section: Discussionmentioning

confidence: 99%

Functional analysis of the 1-aminocyclopropane-1-carboxylate deaminase gene of the biocontrol fungus Trichoderma asperellum ACCC30536

et al. 2016

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1-aminocyclopropane-1-carboxylate (ACC) deaminase (ACCD) cleaves ACC, the immediate precursor of the ethylene, decreasing the level of ethylene and inhibition of plant growth resulted by environmental stresses. Here, TaACCD was cloned from the biocontrol agent Trichoderma asperellum ACCC30536. Its open reading frame was 1047 bp long encoding a 37 kD protein of 348 aa, and a pI of 5.77. Phylogenetic analysis demonstrated this protein to be closely related to ACCD from T. asperellum T203 (ACX94231). Transformation of Populus davidiana × P. bolleana with TaACCD, increased salinity tolerance of transgenic plants Pdb-ACCD3 and Pdb-ACCD5. Transgenic plants could survive at salinity of 200 mM NaCl, whereas untransformed control poplar Pdb-NT could withstand salinity to 150 mM NaCl. Transformed plants accumulated higher amounts of chlorophyll compared to Pdb-NT plants. Accumulation of reactive oxygen species (ROS) was regulated by TaACCD under salt stress, as shown from higher superoxide dismutase (SOD) and peroxidase (POD) activities, as well as NBT and DAB staining. Evans blue staining showed that TaACCD maintained membrane integrity in Populus under salt stress conditions. Additionally, TaACCD expression decreased ethylene content of transgenic plants compared to nontransgenic plants, but salt content in plant leaves didnt show obvious difference under same salt concentration. To the best of our knowledge, the current study is the first demonstration that the TaACCD gene from T. asperellum ACCC30536 can enhance tolerance of Populus to salt stress.Key words: Trichoderma asperellum, 1-aminocyclopropane-1-carboxylate deaminase, transgenic poplar, salinity tolerance.Résumé : La 1-aminocyclopropane-1-carboxylate (ACC) désaminase (ACCD) scinde l'ACC, précurseur immédiat de l'éthylène, ce qui réduit la concentration de ce gaz et l'effet inhibiteur qu'il a sur la croissance des plantes soumises à un stress environnemental. Dans le cadre de cette étude, les auteurs ont cloné le gène TaACCD de l'agent de lutte biologique Trichoderma asperellum ACCC30536. Son cadre de lecture ouvert mesure 1 047 pb de longueur et code une protéine de 37 kD composée de 348 acides aminés et d'un pI de 5,77. L'analyse phylogénétique révèle que la protéine est étroitement apparentée à l'ACCD de T. asperellum T203 (ACX94231). La modification de Populus davidiana × P. bolleana avec le gène TaACCD augmente la tolérance des plants transgéniques Pdb-ACCD3 et Pdb-ACCD5 à la salinité. Ces plants survivent à une salinité de 200 mM de NaCl, contre 150 mM de NaCl pour le peuplier témoin non modifié Pdb-NT. Les plants modifiés accumulent plus de chlorophylle que les plants de Pdb-NT. Le gène TaACCD régule l'accumulation des espèces réactives d'oxygène résultant du stress dû au sel, comme l'indique la plus grande activité de la superoxyde dismutase (SOD) et de la peroxydase (POD), de même que la coloration au NBT et au DAB. La coloration au bleu d'Evans révèle que le gène TaACCD aide la membrane cellulaire à garder son intégrité chez Populus, dans de...

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Section: Discussionmentioning

confidence: 99%

Functional analysis of the 1-aminocyclopropane-1-carboxylate deaminase gene of the biocontrol fungus Trichoderma asperellum ACCC30536

et al. 2016

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“…Strains of Porphyra can be selected for temperature tolerance on the basis of their growth ability (Yan and Lv 2010) or chlorophyll fluorescence when cultured in different temperature environments. The measurement of chlorophyll a fluorescence has the advantage that this method is nondestructive to the plant tissue and takes only a few seconds to record, and portable measuring equipment is available commercially (Smillie and Nott 1982;Fracheboud et al 1999;Sayed 2003). This paper has shown that two strains of Porphyra, selected under different temperature environments, had totally different photophysiological characteristics.…”

Section: Discussionmentioning

confidence: 99%

Analysis of photosynthetic pigments and chlorophyll fluorescence characteristics of different strains of Porphyra yezoensis

Tao

Shen

et al. 2011

J Appl Phycol

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The levels of photosynthetic pigments and chlorophyll fluorescence of Porphyra yezoensis strains selected from high-light environments were investigated. Sutong and Sulian strains originated from the same high-light environment but were selected from different sites on the Yellow Sea coast of Jiangsu Province, China. In January (a low temperature period), the Sulian strain and the WT (a widely cultivated strain) had higher levels of chlorophyll a, phycoerythrin, phycocyanin, and allophycocyanin, and higher actual photochemical efficiency of PSII (ΔF/F m ′) than the Sutong strain. This indicated that Sulian and the WT may have better adaptation to low temperature. In March (an optimal temperature period), Sutong had higher levels of photosynthetic pigments and higher ΔF/F m ′ than the WT and Sulian strains. This suggested that Sutong had higher light use efficiency at optimal temperatures and that most energy absorbed by PSII was used for photosynthetic electron transport. The differing areas of origin of these strains may have resulted in these differences in temperature adaptation.

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“…Under suboptimal temperatures, corn is prone to physiological damages such as photosynthesis, one of the processes most sensitive to cold temperature. Prior studies on corn seedlings grown under low temperatures were reported to reduce photosynthetic capacity, impair chloroplast function, and lower quantum efficiency of electron transfer at PSII than seedlings developed under more optimum temperature conditions (Nie et al 1992;Fracheboud et al 1999;Leipner et al 1999). Reduction of leaf carbon exchange rate (Tollenaar 1989), stomatal conductance (Massacci et al 1995), Rubisco activity (Janda et al 1999), and chlorophyll content ) has also been reported for plants grown at cold temperatures.…”

Section: Introductionmentioning

confidence: 89%

Growth and physiological trait variation among corn hybrids for cold tolerance

et al. 2016

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Global food demand has risen continuously because of increasing population with greater food and energy needs. Corn production, however, is constrained by current and possible increased future variability in the weather. Earlier planting is a strategy for U.S. Mid-South corn producers to avoid typical summer droughts. However, planting early will increase the likelihood of seedlings exposure to cold temperatures. The objectives of this study were to evaluate corn hybrids planted when the conditions are desirable followed by low and moderately low temperatures to assess the variability among the vegetative and physiological parameters and to classify hybrids into different cold tolerant groups. Twenty one commercially-grown hybrids were subjected to three day/night temperature treatments; 29/21°C (optimum), 25/17°C (moderately low), and 21/13°C (low) from 15 d after planting (DAP) for plants grown at optimum temperature. Shoot, root, and physiological parameters were measured, 32-34 DAP. Significant differences and interactions were observed among the temperature treatments and hybrids for most of the traits measured. Based on relative scores, developed in this study, AR1262 and P1636YHR were classified as cold tolerant and H68B and ST11504VT3 as cold sensitive. Cold tolerant hybrids and their associated morpho-physiological characteristics may be useful for breeders to develop new hybrids that could withstand low and variable temperatures during seedling growth and developmental period.Key words: cold tolerance, maize, fluorescence, growth indices, photosynthesis, stomatal conductance.Résumé : La demande mondiale d'aliments ne cesse d'augmenter en raison de la croissance démographique, qui accentue les besoins en nourriture et en énergie. Malheureusement, la production de maïs est affectée par la variabilité actuelle du climat, laquelle pourrait s'intensifier dans l'avenir. Les producteurs du centre-sud des États-Unis sèment le maïs hâtivement pour éviter les sécheresses usuelles de l'été. Cependant, les semis précoces augmentent la probabilité que les plantules soient exposées au froid. La présente étude devait évaluer des hybrides plantés à un moment où les conditions étaient favorables, avant une période de fléchissement important ou modéré des températures, cela en vue d'établir la variabilité des paramètres végétatifs et physiologiques de ces hybrides et de les classer en différents groupes en fonction de leur tolérance au froid. Vingt-et-un hybrides commerciaux ont été soumis à trois régimes de températures diurnes/ nocturnes : 29/21°C (régime optimal), 25/17°C (régime modérément bas) et 21/13°C (régime bas), 15 jours après repiquage des plants cultivés à température optimale. Les auteurs ont évalué les pousses, les racines et les paramètres physiologiques entre le 32 e et le 34 e jour suivant la plantation. D'importantes variations et interactions ont été relevées pour la plupart des caractères examinés entre les différents traitements et hybrides. Selon les notes relatives établies dans le cadr...

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Chlorophyll fluorescence as a selection tool for cold tolerance of photosynthesis in maize (Zea mays L.)

Cited by 198 publications

References 2 publications

Functional analysis of the 1-aminocyclopropane-1-carboxylate deaminase gene of the biocontrol fungus Trichoderma asperellum ACCC30536

Functional analysis of the 1-aminocyclopropane-1-carboxylate deaminase gene of the biocontrol fungus Trichoderma asperellum ACCC30536

Analysis of photosynthetic pigments and chlorophyll fluorescence characteristics of different strains of Porphyra yezoensis

Growth and physiological trait variation among corn hybrids for cold tolerance

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