Fifty-Five Years of Research on Photosynthesis, Chloroplasts, and Stress Physiology of Plants: 1958–2013

Lichtenthaler, Hartmut K.

doi:10.1007/978-3-319-08807-5_1

Cited by 10 publications

(8 citation statements)

References 83 publications

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“…Determination of leaf pigments was carried out by the method of T.N Godnev and H.K. Lichtenthalers (12,19,20). The obtained samples were dried in a desiccator at 65 0 C and 96% ethanol-soluble pigment solutions were prepared from 1 g of dry annual assimilation twigs and leaves.…”

Section: Methodsmentioning

confidence: 99%

“…Livestock grazing produces more new twigs and leaves to restore the photosynthetic ability of plants as a result of consuming green leaves and twigs of plants cause an increase in physiological processes (11). In particular, changes in the amount of photosynthetic pigments are observed (12). Currently, the stress of livestock grazing in semi-desert, rangeland ecosystems has led to changes in the physiological parameters (amount of photosynthetic pigments) of palatable Artemsia diffusa (13).…”

Section: Introductionmentioning

confidence: 99%

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Changes of photosynthetic pigments of Artemisia diffusa under the influence of grazing stress of livestock grazing in Karnabchul semi-desert, Uzbekistan

et al. 2023

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On the transformed natural rangelands of Karnabchul desert, the natural Artemisia diffusa studied four different grazing intensities the change in the amount of photosynthetic pigments (chlorophyll a, chlorophyll b, carotenoids). It was found that the amount of A. diffusa pigments also increased with increasing stress levels in livestock grazing. In general, different grazing intensities had a different impact on the morphological and physiological traits of plants, especially their photosynthetic pigments.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Changes of photosynthetic pigments of Artemisia diffusa under the influence of grazing stress of livestock grazing in Karnabchul semi-desert, Uzbekistan

et al. 2023

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“…Hartmut has contributed in many ways to photosynthesis as it is now taught (for his own account of many of the topics covered here, see Lichtenthaler 2015). In addition to our better understanding of the process of photosynthesis that is essential for life as we know it, Hartmut has addressed important applied questions.…”

Section: Resultsmentioning

confidence: 98%

Hartmut Lichtenthaler: an authority on chloroplast structure and isoprenoid biochemistry

Sharkey

2015

Photosynth Res

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We pay tribute to Hartmut Lichtenthaler for making important contributions to the field of photosynthesis research. He was recently recognized for ground-breaking discoveries in chloroplast structure and isoprenoid biochemistry by the Rebeiz Foundation for Basic Research (RFBR; http://vlpbp.org/ ), receiving a 2014 Lifetime Achievement Award for Photosynthesis. The ceremony, held in Champaign, Illinois, was attended by many prominent researchers in the photosynthesis field. We provide below a brief note on his education, and then describe some of the areas in which Hartmut Lichtenthaler has been a pioneer.

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“…Chlorophyls a and b absorb light for maximum utilization under non-saturating conditions, but they can act as protective pigments under over-saturating light conditions, when absorbed light is dissipated as heat (Nishio, 2000). Carotenoids are involved in photoprotection and photorepair, transfering energy to the photosynthetic reaction centers as accessory pigments to chlorophylls (Takahashi and Badger, 2011;Lichtenthaler, 2015).…”

Section: Methodsmentioning

confidence: 99%

Effects of spine-shading on aspects of photosynthesis for three cactus species

2016

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We evaluated the effect of spine removal on three cactus species varying in spine-shading of stems. Turbinicarpus schmiedickeanus showed the greater spine shading (c. 61 %), followed by Mammillaria zephyranthoides (43 %), and Echinocactus platyacanthus (17 %). We evaluated photosynthetic activity [titratable acidity, electron transport rate, potential quantum yield of Photosystem II, effective quantum yield of Photosystem II, and non-photochemical quenching], as well as pigment content (chlorophylls a and b, total chlorophyll, chlorophyll a/b, carotenoids, and total chlorophyll/carotenoids ratio). For T. schmiedickeanus, the species having the higher spine shading, spine removal increased the CAM activity (acidity level) and the effective quantum yield of Photosystem II and diminished both electron transport rate and non-photochemical quenching at 15:00 hours. For M. zephyranthoides, the species having intermediate spine shading, spine removal also increased the acidity level but diminished effective quantum yield of Photosystem II at midday, as well as chlorophyll a, total chlorophyll, and carotenoids, although there was higher non-photochemical quenching (heat quenching) as an adaptation to avoid photosynthetic damage. Spine removal did not affect acidity level or pigment content from E. platyacanthus, the species having the lower spine shading; however, at midday this species without spines showed a decrease of effective quantum yield of Photosystem II, as well as an increase of non-photochemical quenching and electron transport rate. We suggest that a main function of cactus spines is reduction of sun exposure to avoid damage to the photosynthetic apparatus.

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Fifty-Five Years of Research on Photosynthesis, Chloroplasts, and Stress Physiology of Plants: 1958–2013

Cited by 10 publications

References 83 publications

Changes of photosynthetic pigments of Artemisia diffusa under the influence of grazing stress of livestock grazing in Karnabchul semi-desert, Uzbekistan

Changes of photosynthetic pigments of Artemisia diffusa under the influence of grazing stress of livestock grazing in Karnabchul semi-desert, Uzbekistan

Hartmut Lichtenthaler: an authority on chloroplast structure and isoprenoid biochemistry

Effects of spine-shading on aspects of photosynthesis for three cactus species

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