Mesophyll conductance, photoprotective process and optimal N partitioning are essential to the maintenance of photosynthesis at N deficient condition in a wheat yellow-green mutant (Triticum aestivum L.)

Li, Hongxia; Li, Junjie; Zhang, Xuhui; Shi, Tingrui; Xinyu, Chai; Hou, Peijia

doi:10.1016/j.jplph.2021.153469

Cited by 7 publications

(11 citation statements)

References 75 publications

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“…N-deficiency caused a decrease in Fv/Fm in many species, such as tea, Panax notoginseng, maize, A. thaliana, and rice (Lin et al 2016, Honoki et al 2018, Zhang et al 2020. Though a study of wheat indicated that Fv/Fm parameter was insensitive to N treatment, Gao et al (2018) and our previous study showed a decrease in Fv/Fm for wheat seedlings when N was deficient (Li et al 2021). In this study, Fv/Fm was lower in the N120 condition for two genotypes at anthesis (Table 3).…”

Section: Discussionmentioning

confidence: 65%

“…The photosynthetic rate was more likely to be influenced by N treatments during the seedling stage (Li et al 2021). However, we observed a few differences in PN between N treatments for both genotypes at anthesis (Table 1).…”

Section: Discussionmentioning

confidence: 99%

“…Our previous study showed that Jimai5265yg had higher CET than the wild type under the N-deficient condition at the seedling stage. The nonphotochemical energy dissipation was enhanced in Jimai5265yg due to the increase of oxidized P700 (ΦND) (Li et al 2021). The increase in the CET rate provided efficient protection against oxidative stress, such as heat, high light, and drought (Zivcak et al 2014a,b).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the photosynthetic advantage was maintained in response to the N-deficient treatment in hydroponic culture. In addition to the enhanced CO2 diffusion, the N-deficient mutant has a higher cyclic electron transport and photochemical activity of PSI, coping with photodamage (Li et al 2021). N deficiency induced the increase of relative N content of the photosynthetic system in both wheat and rice (Hou et al 2019).…”

Section: Introductionmentioning

confidence: 99%

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Improvement in the photoprotective capability benefits the productivity of a yellow-green wheat mutant in N-deficient conditions

ZHANG¹,

LI²,

ZHUO³

et al. 2022

Photosynt.

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Cc -CO2 concentration inside the chloroplast; Ci -intercellular CO2 concentration; ETRI -electron transport rate of PSI; ETRII -electron transport rate of PSII; F0 -minimum fluorescence; F0'-minimum fluorescence in the actinic light; Fm -maximum fluorescence; Fm' -maximum fluorescence in the actinic light; Fv/Fm -maximum quantum efficiency of PSII photochemistry; gmmesophyll conductance; gs -stomatal conductance; Ja -alternative electron flux; Je(PCO) -electron flux to photorespiratory carbon oxidation; Je(PCR) -electron flux to photosynthetic carbon reduction; Jmax -light-saturated potential rate of electron transport; Jtelectron transport rate; Lb -limitation of biochemical capacity; Lm -limitation of mesophyll diffusion; LMA -leaf mass per area; Ls -limitation of stomatal diffusion; Narea -nitrogen content per unit area; Nmass -nitrogen content per unit mass; NO -nonregulated heat dissipation; NPQ -nonphotochemical quenching; P700 -primary electron donor of PSI; PIB -post-illumination burst; Pm or Pm' -maximum P700 signal measured using saturation light pulse following short far-red pre-illumination in dark or light-adapted state; PN -net photosynthetic rate; PNUE -photosynthetic N-use efficiency; qP -PSII efficiency factor (the fraction of open centers); Rd -mitochondrial CO2 release in the dark; RL -light respiration rate; ROS -reactive oxygen species; Vc,max -maximum carboxylation rate limited by Rubisco; Γ* -CO2-compensation point; ΦNA -oxidation status of PSI acceptor site; ΦND -oxidation status of PSI donor site; ΦNO -quantum yield nonregulated heat dissipation; ΦNPQ -quantum yield of nonphotochemical quenching; ΦPSI -quantum yield of PSI photochemistry; ΦPSII -PSII operating efficiency (quantum yield of PSII photochemistry); ΦqP -quantum yield of open centers.

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Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improvement in the photoprotective capability benefits the productivity of a yellow-green wheat mutant in N-deficient conditions

ZHANG¹,

LI²,

ZHUO³

et al. 2022

Photosynt.

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show abstract

“…These results indicate that the donor side limitation-induced superoxide anions are generated at the PSI receptor side under LN, which leads to excessive reduction of the PSI receptor side, thereby causing PSI photoinhibition. Moreover, it has been observed that the excitation of CEF might maintain the low reduction state of the PSI receptor side and the high oxidation state of P700 to prevent PSI from damage in P. vulgaris , Triticum aestivum , and C. sinensis grown under N deficient ( Antal et al, 2010 ; Lin et al, 2016 ; Li H. et al, 2021 ). The size of PQ pool in LN plants was reduced, and the CEF was increased, and there were no significant differences in PQ pool size between MV-treated and H 2 O-treated plants ( Figures 4C , 8D ).…”

Section: Discussionmentioning

confidence: 99%

Responses of Linear and Cyclic Electron Flow to Nitrogen Stress in an N-Sensitive Species Panax notoginseng

Zhang

Shuang

et al. 2022

Front. Plant Sci.

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Nitrogen (N) is a primary factor limiting leaf photosynthesis. However, the mechanism of N-stress-driven photoinhibition of the photosystem I (PSI) and photosystem II (PSII) is still unclear in the N-sensitive species such as Panax notoginseng, and thus the role of electron transport in PSII and PSI photoinhibition needs to be further understood. We comparatively analyzed photosystem activity, photosynthetic rate, excitation energy distribution, electron transport, OJIP kinetic curve, P700 dark reduction, and antioxidant enzyme activities in low N (LN), moderate N (MN), and high N (HN) leaves treated with linear electron flow (LEF) inhibitor [3-(3,4-dichlorophenyl)-1,1-dimethyl urea (DCMU)] and cyclic electron flow (CEF) inhibitor (methyl viologen, MV). The results showed that the increased application of N fertilizer significantly enhance leaf N contents and specific leaf N (SLN). Net photosynthetic rate (Pn) was lower in HN and LN plants than in MN ones. Maximum photochemistry efficiency of PSII (Fv/Fm), maximum photo-oxidation P700+ (Pm), electron transport rate of PSI (ETRI), electron transport rate of PSII (ETRII), and plastoquinone (PQ) pool size were lower in the LN plants. More importantly, K phase and CEF were higher in the LN plants. Additionally, there was not a significant difference in the activity of antioxidant enzyme between the MV- and H2O-treated plants. The results obtained suggest that the lower LEF leads to the hindrance of the formation of ΔpH and ATP in LN plants, thereby damaging the donor side of the PSII oxygen-evolving complex (OEC). The over-reduction of PSI acceptor side is the main cause of PSI photoinhibition under LN condition. Higher CEF and antioxidant enzyme activity not only protected PSI from photodamage but also slowed down the damage rate of PSII in P. notoginseng grown under LN.

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Sustainable production of bread wheat under terminal heat stress: an investigation of foliar selenium-mediated biochemical regulations in association with yield

Shahid

Saleem

et al. 2023

CEREAL RESEARCH COMMUNICATIONS

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Mesophyll conductance, photoprotective process and optimal N partitioning are essential to the maintenance of photosynthesis at N deficient condition in a wheat yellow-green mutant (Triticum aestivum L.)

Cited by 7 publications

References 75 publications

Improvement in the photoprotective capability benefits the productivity of a yellow-green wheat mutant in N-deficient conditions

Improvement in the photoprotective capability benefits the productivity of a yellow-green wheat mutant in N-deficient conditions

Responses of Linear and Cyclic Electron Flow to Nitrogen Stress in an N-Sensitive Species Panax notoginseng

Sustainable production of bread wheat under terminal heat stress: an investigation of foliar selenium-mediated biochemical regulations in association with yield

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