Photosynthetic Physiological Response of Radix Isatidis (Isatis indigotica Fort.) Seedlings to Nicosulfuron

Yuan, Xiangyang; Zhang, Liguang; Na, Ning; Wen, Yinyuan; Dong, Shuqi; Yin, Meiqiang; Guo, Meijun; Wang, Binqiang; Feng, Lei; Guo, Peng

doi:10.1371/journal.pone.0105310

Cited by 18 publications

(8 citation statements)

References 20 publications

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“…Frankart et al (2003) studied the effects of paraquat and norflurazon on Chl fluorescence parameters in Lemna minor, and found significant reductions in F v /F m , q P , and Φ PSII , but increased NPQ. Conversely, terbutryn, flumioxazin, and nicosulfuron decrease the NPQ in grape, Vicia faba, and Radix isatidis, respectively (Frankart et al 2003, Murata et al 2007, Yuan et al 2014. A lower proportion of opened PSII centers results from the reduction of q P .…”

Section: Discussionmentioning

confidence: 96%

“…After 7 DAT, P N and E of SN509-S significantly decreased, while C i and L s of SN509-S significantly increased, indicating that the decrease of P N could be mainly attributed to stomatal limitation. We inferred that the chloroplast structure of the maize seedling leaf was destroyed due to the action of nicosulfuron, leading to a reduction in the thylakoid stacking level (Liu et al 2007, Yuan et al 2014. Thus, the light energy conversion efficiency of the photosynthetic apparatus was affected, and the normal growth and development of the plant were inhibited.…”

Section: Discussionmentioning

confidence: 99%

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Photosynthesis and physiology responses of paired near-isogenic lines in waxy maize (Zea mays L.) to nicosulfuron

Wang¹,

Zhong²,

Lv³

et al. 2018

Photosynt.

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Nicosulfuron is a post-emergence herbicide used for weed control in fields of maize (Zea mays L.). We used a pair of nearly isogenic inbred lines, SN509-R (nicosulfuron-resistant) and SN509-S (nicosulfuron-sensitive), to study the effect of nicosulfuron on waxy maize seedling. After the nicosulfuron treatment, net photosynthetic rate, stomatal conductance, transpiration rate, leaf maximum photochemical efficiency of PSII, photochemical quenching of chlorophyll fluorescence, and the actual photochemical efficiency of PSII were significantly lower in SN509-S than those of SN509-R, contrary to intercellular CO 2 concentration, stomatal limitation, and nonphotochemical quenching. Compared to SN509-R, antioxidant enzyme activities in SN509-S decreased significantly in response to the nicosulfuron treatment, while SN509-S exhibited an increased malondialdehyde content, which was associated with lower antioxidant enzyme activities. These results collectively suggest that the nicosulfuron-resistance mechanism was associated with photosynthetic rate, reactive oxygen species metabolism, and protective mechanisms.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Photosynthesis and physiology responses of paired near-isogenic lines in waxy maize (Zea mays L.) to nicosulfuron

Wang¹,

Zhong²,

Lv³

et al. 2018

Photosynt.

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“…The changes in foxtail millet grain yield and quality were remarkable under herbicide TBM stress. The safety of herbicides on crops can be assessed by measuring grain yield, quality, and agronomic traits [ 28 , 29 ]. In this study, TBM treatment inhibited the growth of foxtail millet, which was reflected by reduced root and shoot biomass (Figs 1 and 2 ).…”

Section: Discussionmentioning

confidence: 99%

Grain Yield and Quality of Foxtail Millet (Setaria italica L.) in Response to Tribenuron-Methyl

Yuan

Dong

et al. 2015

PLoS ONE

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Foxtail millet (Setaria italica L.) is cultivated around the world for human and animal consumption. There is no suitable herbicide available for weed control in foxtail millet fields during the post-emergence stage. In this study, we investigated the effect and safety of the post-emergence herbicide tribenuron-methyl (TBM) on foxtail millet in terms of grain yield and quality using a split-plot field design. Field experiments were conducted using two varieties in 2013 and 2014, i.e., high-yielding hybrid Zhangzagu 10 and high-quality conventional Jingu 21. TBM treatments at 11.25 to 90 g ai ha−1 reduced root and shoot biomass and grain yield to varying degrees. In each of the two years, grain yield declined by 50.2% in Zhangzagu 10 with a herbicide dosage of 45 g ai ha−1 and by 45.2% in Jingu 21 with a herbicide dosage of 22.5 g ai ha−1 (recommended dosage). Yield reduction was due to lower grains per panicle, 1000-grain weight, panicle length, and panicle diameter. Grain yield was positively correlated with grains per panicle and 1000-grain weight, but not with panicles ha−1. With respect to grain protein content at 22.5 g ai ha−1, Zhangzagu 10 was similar to the control, whereas Jingu 21 was markedly lower. An increase in TBM dosage led to a decrease in grain Mn, Cu, Fe, and Zn concentrations. In conclusion, the recommended dosage of TBM was relatively safe for Zhangzagu 10, but not for Jingu 21. Additionally, the hybrid variety Zhangzagu 10 had a greater tolerance to TBM than the conventional variety Jingu 21.

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“…The light-adapted photosynthetic parameters were recorded after exposure to different light intensity (1445,1105,819,592,418,206,69,36,13 μmol photons m − 2 s − 1 ) for 240 s. The chlorophyll fluorescence parameters Fv/Fm, Y(II), Y(NPQ) and Y(NO) were calculated as described in Huang et al [44]. P700 parameters were measured and calculated as described in Yuan et al [45] and Huang et al [46].…”

Section: Measurement Of Gas Exchange Chlorophyll Fluorescence and P7mentioning

confidence: 99%

Interaction of zinc and IAA alleviate aluminum-induced damage on photosystems via promoting proton motive force and reducing proton gradient in alfalfa

Xie

Wen

et al. 2020

BMC Plant Biol

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Background In acidic soils, aluminum (Al) competing with Zn results in Zn deficiency in plants. Zn is essential for auxin biosynthesis. Zn-mediated alleviation of Al toxicity has been rarely studied, the mechanism of Zn alleviation on Al-induced photoinhibition in photosystems remains unclear. The objective of this study was to investigate the effects of Zn and IAA on photosystems of Al-stressed alfalfa. Alfalfa seedlings with or without apical buds were exposed to 0 or100 μM AlCl3 combined with 0 or 50 μM ZnCl2, and then foliar spray with water or 6 mg L− 1 IAA. Results Our results showed that Al stress significantly decreased plant growth rate, net photosynthetic rate (Pn), quantum yields and electron transfer rates of PSI and PSII. Exogenous application of Zn and IAA significantly alleviated the Al-induced negative effects on photosynthetic machinery, and an interaction of Zn and IAA played an important role in the alleviative effects. After removing apical buds of Al-stressed alfalfa seedlings, the values of pmf, gH+ and Y(II) under exogenous spraying IAA were significantly higher, and ΔpHpmf was significantly lower in Zn addition than Al treatment alone, but the changes did not occur under none spraying IAA. The interaction of Zn and IAA directly increased Y(I), Y(II), ETRI and ETRII, and decreased O2− content of Al-stressed seedlings. In addition, the transcriptome analysis showed that fourteen functionally noted genes classified into functional category of energy production and conversion were differentially expressed in leaves of alfalfa seedlings with and without apical buds. Conclusion Our results suggest that the interaction of zinc and IAA alleviate aluminum-induced damage on photosystems via increasing pmf and decreasing ΔpHpmf between lumen and stroma.

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Photosynthetic Physiological Response of Radix Isatidis (Isatis indigotica Fort.) Seedlings to Nicosulfuron

Cited by 18 publications

References 20 publications

Photosynthesis and physiology responses of paired near-isogenic lines in waxy maize (Zea mays L.) to nicosulfuron

Photosynthesis and physiology responses of paired near-isogenic lines in waxy maize (Zea mays L.) to nicosulfuron

Grain Yield and Quality of Foxtail Millet (Setaria italica L.) in Response to Tribenuron-Methyl

Interaction of zinc and IAA alleviate aluminum-induced damage on photosystems via promoting proton motive force and reducing proton gradient in alfalfa

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