Effects of kinetin on plant growth and chloroplast ultrastructure of two Pteris species under arsenate stress

Li, Qinchun; Wang, Hongbin; Wang, Haijuan; Zheng, Wen; Wu, Dongmo; Wang, Zhongzhen

doi:10.1016/j.ecoenv.2018.04.009

Cited by 14 publications

(7 citation statements)

References 39 publications

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“…In contrast, plants maintained at the correct temperature do not need to increase their rate of photosynthesis and energy production by increasing their chlorophyll content. Exogenous application of BR to cotton seedlings under low-temperature stress increased the Chl a, Chl b, and Chla+b contents and protected chloroplasts (Li et al, 2018), which is similar to our results. However, the Chl a, Chl b, and Chl a+b contents in the control-treated plants were higher than those in the BR-treated plants at 15 DAT under lowtemperature conditions.…”

Section: Discussionsupporting

confidence: 91%

“…As the photosynthetic organs, chloroplasts are vulnerable to stress-induced damages. Early structural changes occur in the chloroplasts when the leaves suffer from abiotic stresses (Li et al, 2018). Therefore, examination of the chloroplast ultrastructure is important to investigate photosynthesis and the effects of abiotic stress on the photosynthetic apparatus (Hu et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

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Effects of Low-Temperature Stress and Brassinolide Application on the Photosynthesis and Leaf Structure of Tung Tree Seedlings

Zhang

Lü

et al. 2020

Front. Plant Sci.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Effects of Low-Temperature Stress and Brassinolide Application on the Photosynthesis and Leaf Structure of Tung Tree Seedlings

Zhang

Lü

et al. 2020

Front. Plant Sci.

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“…Reduced growth and biomass accumulation due to Cd stress has earlier been reported by Ahmad et al [5] in tomato. Kn application has been reported to improve growth in Pteris exposed to arsenic stress [49]. It has been reported that Kn act synergistically with PAs to improve plant growth [50].…”

Section: Discussionmentioning

confidence: 99%

“…Increased photosynthesis directly influences the growth and metabolite production, ultimately increasing the energy status [57]. The exogenous application of Kn has been reported to prevent the structural deformities in chloroplasts under metal stress [49]. Reports discussing the combined effects of Kn and Spd on the chlorophyll synthesis and photosynthesis are not available.…”

Section: Discussionmentioning

confidence: 99%

Combined Kinetin and Spermidine Treatments Ameliorate Growth and Photosynthetic Inhibition in Vigna angularis by Up-Regulating Antioxidant and Nitrogen Metabolism under Cadmium Stress

Ahanger

Aziz

Sahli³

et al. 2020

Biomolecules

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Pot experiments were conducted to investigate the probable beneficial role of the individual as well as combined application of kinetin (50 μM Kn) and spermidine (200 μM Spd) on Vigna angularis under cadmium (Cd) stress. Cd treatment reduced growth by declining the content of chlorophylls and carotenoids, photosynthesis, and gas exchange parameters. Exogenously, Kn and Spd application enhanced the photosynthetic parameters and up-regulated the antioxidant system by improving the activities of antioxidant enzymes and the content of non-enzymatic components. In addition, the application of Kn and Spd resulted in significant improvement in the content of sugars, proline, and glycine betaine, ameliorating the decline in relative water content. Oxidative stress parameters including hydrogen peroxide, superoxide, lipid peroxidation, lipoxygenase activity, and electrolyte leakage increased due to Cd stress; however, the application of Kn and Spd imparted a significant decline in all these parameters. Further, reduced Cd uptake was also observed due to Kn and Spd application. Total phenols and flavonoids also increased due to Kn and Spd treatments under normal as well as Cd stress conditions, which may have further helped with the elimination of reactive oxygen species. Reduction in the activity of nitrate reductase and the content of nitrogen was ameliorated due to the exogenous application of Kn and Spd. Therefore, the exogenous application of Kn and Spd benefited Vigna angularis counteracting the damaging effects of Cd stress by up-regulating the tolerance mechanisms, including antioxidant and osmolyte metabolism.

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“…Количество пигментов изменяется при адаптации к условиям среды и под влиянием различных стрессоров, т. е. отражает реакцию растения на условия произрастания [10,11,12]. Ранние структурные изменения происходят в хлоропластах листьев, испытывающих различные абиотические стрессы [13,14]. В условиях дерново-подзолистых почв главным стрессовым эдафическим фактором является высокое содержание подвижных ионов алюминия.…”

Section: In the Field Studies Of 2018…2019 The Influence Of Macronutunclassified

Reaction of pigment complex in meadow clover leaves to weather conditions and macronutrients

Лыскова

Lisitsyn

Лыскова

2020

Аграрная наука Евро-Северо-Востока

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In the field studies of 2018…2019, the influence of macronutrients and weather conditions on pigment complex of leaves of meadow clover (Trifolium pratense L.) Dymkovsky variety was assessed. The study was carried out in grainfallow-grass crop rotation in the conditions of Kirov region. Leaf samples (fully developed second or third leaf from above) were taken in the flowering phase, and the chlorophyll and carotenoids content were measured spectrophotometrically under laboratory conditions. It has been found that the content of pigments in the leaves of meadow clover depended mostly on weather conditions of the year of cultivation. The concentration of green pigments (Chl a+b) in clover leaves was in the range of 15.34...19.05 in the conditions of warmer and dry 2018 and 11.47...14.10 mg/g dry matter in colder and humid year of 2019. Chl a accounted for 9.64...11.36 and 6.67...7.98 mg/g (2018 and 2019, respectively). Colder conditions promoted an increase in the ratio of Chl a associated with light-harvesting complexes (from 69…78 up to 89…96 %). Weight content of carotenoids was 2.69...3.12 and 1.52…1.88 mg/g in 2018 and 2019, respectively, and correlated with the content of a total chlorophyll (r = 0.53…0.82). The weight ratio of chlorophylls a/b (1.54... 1.75 in 2018 and 1.18... 1.47 in 2019) indicates a lack of insolation in the conditions of mutually shading of leaves of the created phytocenosis. However, the weight ratio of the sum of chlorophylls to carotenoids (5.7... 6.7 in 2018 and 6.86... 9.65 in 2019) suggests that this abiotic factor has not led to disorders in the structure of the photosynthetic leaf apparatus. Weather conditions considerably modified influence of fertilizers on pigment synthesis: in 2018, nitrogen fertilizers reduced the content of chlorophylls by 11…22 %, full mineral fertilizer on acid soil background led to decrease in the content of pigments by 6.7…11.7 %. In colder conditions of 2019 nitrogen fertilizers did not influence the content of pigments, full mineral fertilizer increased the content of Chl a by 14.1…17.8 %, carotinoids – by 18.2…25.4 %. In the conditions of 2019 the content of Chl a significantly depended on nitrogen content in leaves (r = 0.52…0.92) and correlated with phosphorus level in the soil: for Chl a – r = 0.74 and 0.54, for Chl b r = 0.73 and 0.75 (acid soil background and soil background with lime application, respectively).

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Effects of kinetin on plant growth and chloroplast ultrastructure of two Pteris species under arsenate stress

Cited by 14 publications

References 39 publications

Effects of Low-Temperature Stress and Brassinolide Application on the Photosynthesis and Leaf Structure of Tung Tree Seedlings

Effects of Low-Temperature Stress and Brassinolide Application on the Photosynthesis and Leaf Structure of Tung Tree Seedlings

Combined Kinetin and Spermidine Treatments Ameliorate Growth and Photosynthetic Inhibition in Vigna angularis by Up-Regulating Antioxidant and Nitrogen Metabolism under Cadmium Stress

Reaction of pigment complex in meadow clover leaves to weather conditions and macronutrients

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