Ultrastructure and functional activity of chloroplasts in wheat leaves under root chilling

Venzhik, Yu. V.; Титов, А. Ф.; Таланова, В. В.; Miroslavov, E. A.

doi:10.1007/s11738-013-1413-8

Cited by 13 publications

(9 citation statements)

References 45 publications

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“…A number of studies have demonstrated that unfavorable RZ temperature depresses photosynthesis under normal air temperature conditions [ 9 , 48 – 51 ]. In this experiment, for the newly unfolded leaf, the photosynthetic activity of S13 seedlings was suppressed mainly due to stomatal limitation ( Table 2 ), rather than metabolic limitation ( V cmax and J sat in Table 2 , Rubisco-related parameters in Table 3 , and S1 and S2 Tables).…”

Section: Discussionmentioning

confidence: 99%

“…Similar acclimation of photosynthesis has been observed in Arabidopsis leaves developing at 5°C and was attributed to increases of available phosphates and the activity of several Calvin-cycle and sucrose-synthesis related enzymes [ 52 ]. A low RZ temperature alone may have also contributed to acclimation in a study by Venzhik et al [ 51 ] in which wheat leaves exhibited decreased leaf area but increased cold tolerance after exposure to 2°C root chilling. Thus we suggest that for newly unfolded leaves during sub-optimal temperature stress, RZ warming benefits photosynthetic ability mainly via stomata opening rather than metabolic processes such as Rubisco carboxylation activity and electron transport rate.…”

Section: Discussionmentioning

confidence: 99%

“…The relatively high Φ NO may lead to excess energy which will stimulate the generation of ROS [ 63 , 64 ]. Venzhik et al [ 51 ] interpreted the reduced rate of electron transport in leaves of root-chilled seedlings as a result of adaptive transformations of the chloroplast membrane complex. This interpretation is consistent with our conditions, in which RZ warming may help mitigate such passive defence.…”

Section: Discussionmentioning

confidence: 99%

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Root-Zone Warming Differently Benefits Mature and Newly Unfolded Leaves of Cucumis sativus L. Seedlings under Sub-Optimal Temperature Stress

et al. 2016

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Sub-optimal temperature extensively suppresses crop growth during cool-season greenhouse production. Root-zone (RZ) warming is considered an economical option to alleviate crop growth reduction. In this study we cultivated cucumber seedlings in nutrient solution under different air-RZ temperature treatments to investigate the effects of RZ warming on seedling growth- and photosynthesis-related parameters in leaves. The air-RZ temperature treatments included sub-optimal RZ temperature 13°C and sub-optimal air temperature 20/12°C (day/night) (S13), RZ warming at 19°C and sub-optimal air temperature (S19), and RZ warming at 19°C and optimal air temperature 26/18°C (day/night) (O19). In addition, for each air-RZ temperature treatment, half of the seedlings were also treated with 2% (m/m) polyethylene glycol (PEG) dissolved in nutrient solution to distinguish the effect of root-sourced water supply from RZ temperature. At the whole-plant level, S19 significantly increased the relative growth rate (RGR) by approximately 18% compared with S13, although the increase was less than in O19 (50%) due to delayed leaf emergence. S19 alleviated both diffusive and metabolic limitation of photosynthesis in mature leaves compared with S13, resulting in a photosynthetic rate similar to that in O19 leaves. In newly unfolded leaves, S19 significantly promoted leaf area expansion and alleviated stomatal limitation of photosynthesis compared with S13. PEG addition had a limited influence on RGR and leaf photosynthesis, but significantly suppressed new leaf expansion. Thus, our results indicate that under sub-optimal temperature conditions, RZ warming promotes cucumber seedling growth by differently benefiting mature and newly unfolded leaves. In addition, RZ warming enhanced root-sourced water supply, mainly promoting new leaf expansion, rather than photosynthesis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Root-Zone Warming Differently Benefits Mature and Newly Unfolded Leaves of Cucumis sativus L. Seedlings under Sub-Optimal Temperature Stress

et al. 2016

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“…У теплолюбних рослин її зміна супроводжується зникненням крист, що розглядається як симптом пошкодження (Krasch & Wise, 2000). У холодостійких рослин, таких як арабідопсис або пшениця, зміна форми мітохондрій на витягнену «гантелеподібну» та «чашоподібну» має обернений характер (Yu et al, 2011;Vella et al, 2012). Передбачається, що така форма органел сприяє збільшенню площі їх поверхні та полегшує обмін метаболітами з цитоплазмою (Yu et al, 2011;Vella et al, 2012).…”

Section: генетичне різноманіття біологічні та господарсько-цінні ознunclassified

“…У холодостійких рослин, таких як арабідопсис або пшениця, зміна форми мітохондрій на витягнену «гантелеподібну» та «чашоподібну» має обернений характер (Yu et al, 2011;Vella et al, 2012). Передбачається, що така форма органел сприяє збільшенню площі їх поверхні та полегшує обмін метаболітами з цитоплазмою (Yu et al, 2011;Vella et al, 2012). У працях інших учених показано, що збільшення розмірів мітохондрій за короткочасного стресу свідчить про підвищення дихальної здатності клітини (Armstrong et al, 2006;Venzhik et al, 2017).…”

Section: генетичне різноманіття біологічні та господарсько-цінні ознunclassified

Triticum spelta: Origin, biological characteristics and perspectives for use in breeding and agriculture

Бабенко

Hospodarenko

Rozhkov

et al. 2018

Regul. Mech. Biosyst.

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In today’s wheat production, the trends focused on the revival, selection and implementation of forgotten regional grain crops, the so-called "antique" cereals, have been clearly identified. One of these is the ancient hexaploid species of wheat – spelt (Triticum spelta). One of the main reasons that have contributed to the revival of this type of wheat in recent years is its tolerance to growing conditions and capacity to endure the natural and climatic factors of the environment, which allows it to be grown without an excessive use of plant protection products. It is precisely because of this feature that hulled wheat is referred to as "environmentally friendly”. Spelt is capable of yielding stable crops without strict adherence to the production technology and may be a great alternative to soft wheat. The growth in demand for this crop is also due to a complex of economic and valuable traits inherited from its wild ancestors. This review analyzes and summarizes the information about the origin of spelt, presents biological characteristics, discusses the perspectives for using the species in breeding work when implementing interspecific hybridization and compares the structure and genome evolution. The achievements on the revival of spelt as an independent species and its use as a source of economic and valuable traits in breeding programs of crosses with soft wheat are highlighted, examples of successful use of the economic and valuable traits of spelt for the improvement and creation of new high-quality wheat varieties are presented. Data on this superiority of grain from this species over that of genetically close wheat species are presented. The varietals’ characteristics for spelt varieties of Ukrainian selection are given. Such important spelt characteristics as resistance to biotic and abiotic stressors, high quality grain composition and yield have been analyzed.

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AP2/ERF transcription factors regulate salt-induced chloroplast division in the moss Physcomitrella patens

et al. 2020

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Ultrastructure and functional activity of chloroplasts in wheat leaves under root chilling

Cited by 13 publications

References 45 publications

Root-Zone Warming Differently Benefits Mature and Newly Unfolded Leaves of Cucumis sativus L. Seedlings under Sub-Optimal Temperature Stress

Root-Zone Warming Differently Benefits Mature and Newly Unfolded Leaves of Cucumis sativus L. Seedlings under Sub-Optimal Temperature Stress

Triticum spelta: Origin, biological characteristics and perspectives for use in breeding and agriculture

AP2/ERF transcription factors regulate salt-induced chloroplast division in the moss Physcomitrella patens

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