Photosynthesis Under Stress

Biswal, U. C.; Biswal, Basanti

doi:10.1201/9780824746728.ch13

Cited by 11 publications

(2 citation statements)

References 95 publications

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“…These changes often include chloroplast swelling, depletion of starch, formation of peripheral reticulum, thylakoid dilatation, and reduction of thylakoid granal stacks (their three-dimensional structure is still a matter of debate, see Arvidsson andSundby 1999, Mustárdy andGarab 2003), and increase in the number and size of plastoglobuli (e.g. Mostowska 1997, Biswal and Biswal 1999, Čiamporová and Trgiňová 1999, Hudák and Salaj 1999, Kratsch and Wise 2000.…”

Section: Introductionmentioning

confidence: 99%

Ultrastructure and Dimensions of Chloroplasts in Leaves of Three Maize (Zea mays L.) Inbred Lines and their F<sub>1</sub> Hybrids Grown Under Moderate Chilling Stress

Kutík¹,

Holá²,

Kočová³

et al. 2004

Photosynt.

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Influence of moderate chilling stress on vascular bundle sheath cell (BSC) and especially mesophyll cell (MC) chloroplasts of mature maize leaves was studied by electron microscopy and stereology. Plants of two inbred lines of maize, differing in their photosynthetic activity, and their F 1 hybrids were cultivated during autumn in heated or unheated glasshouse. Generally, chilling temperatures resulted mainly in the decrease in stereological volume density (VD) of both granal and intergranal thylakoids of MC chloroplasts, while the ratio of granal to all thylakoids (granality) was less affected. The VD of peripheral reticulum and plastoglobuli usually increased after cold treatment of plants. The volume of MC chloroplasts usually increased under chilling stress, the shape of the chloroplasts changed only slightly. The ultrastructure of chloroplasts differed between individual genotypes; chilling-stressed hybrid plants showed positive heterosis particularly in the granal thylakoids' VD of MC chloroplasts.

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Section: Introductionmentioning

confidence: 99%

Ultrastructure and Dimensions of Chloroplasts in Leaves of Three Maize (Zea mays L.) Inbred Lines and their F<sub>1</sub> Hybrids Grown Under Moderate Chilling Stress

Kutík¹,

Holá²,

Kočová³

et al. 2004

Photosynt.

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“…Among the studied isolates, chlorophyll accumulation was significantly high in Dunaliella salina (50030) ( p < .05). Chla is the main active phytochemical pigment in photosynthetic organisms (Biswal & Biswal, 1999 ). In many phytogenic groups, the light accumulation rate increases due to other active pigments (Wood, 1979 ).…”

Section: Resultsmentioning

confidence: 99%

Biochemical profile of Dunaliella isolates from different regions of Iran with a focus on pharmaceutical and nutraceutical potential applications

Araj‐Shirvani,

Honarvar,

Jahadi

et al. 2024

Food Science & Nutrition

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This study was conducted to evaluate three species of Dunaliella microalgae (Dunaliella salina, Dunaliella viridis, and Dunaliella sp.) indigenous to Iran as new sources of natural chemical and bioactive compounds for exploring pharmaceutical and nutraceutical potential applications. The results showed that the fat, carbohydrate (mono‐ and di‐saccharide), dietary fiber, and protein content of Dunaliella were in the range of 13.19–25.02, 7.59–12.37, 42.10–48.82, and 17.68–22.50 (%), respectively. Dunaliella salina contained a pigment fraction of 11.50%, which was largely composed of carotenoid (7.41%) and chlorophyll (4.09%). Antioxidant capacity and inhibition of 2,2‐diphenyl‐1‐1‐picrylhydrazyl (DPPH) of Dunaliella salina were 34.54 mg/1000 g and 55.63%, respectively. The lipid profile also revealed that three isolated Dunaliella are remarkable sources of polyunsaturated fatty acids (25.42%–40.13%). Further, the ratios of ∑n‐3/∑n‐6 (2.79%), docosahexaenoic acid (6.15%), and eicosapentaenoic acid (11.26%) were the highest in Dunaliella salina. The results, thus, proved that Dunaliella spp., especially Dunaliella salina (IBRC‐M 50030), which originates from a lake in Semnan province, Iran, has potential applications in the food and pharmaceutical industries due to its appropriate biopigment, protein, lipid, antioxidant activity, long‐chain polyunsaturated fatty acids, docosahexaenoic acid, and eicosapentaenoic acid.

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Response of Mature, Developing and Senescing Chloroplasts to Environmental Stress

Joshi¹,

Nayak²,

Misra

et al. 2013

Plastid Development in Leaves During Growth and Senescence

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Photosynthesis Under Stress

Cited by 11 publications

References 95 publications

Ultrastructure and Dimensions of Chloroplasts in Leaves of Three Maize (Zea mays L.) Inbred Lines and their F<sub>1</sub> Hybrids Grown Under Moderate Chilling Stress

Ultrastructure and Dimensions of Chloroplasts in Leaves of Three Maize (Zea mays L.) Inbred Lines and their F<sub>1</sub> Hybrids Grown Under Moderate Chilling Stress

Biochemical profile of Dunaliella isolates from different regions of Iran with a focus on pharmaceutical and nutraceutical potential applications

Response of Mature, Developing and Senescing Chloroplasts to Environmental Stress

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