Effects of uniconazole on the lignin metabolism and lodging resistance of culm in common buckwheat (Fagopyrum esculentum M.)

Wang, Can; Hu, Dong; Liu, Xingbei; She, Hengzhi; Ruan, Renwu; Yang, Hao; Yi, Zelin; Wu, D.Y.

doi:10.1016/j.fcr.2015.05.009

Cited by 106 publications

(55 citation statements)

References 36 publications

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“…Various workers also reported that lignin is an important factor for lodging resistance of wheat (Berry & Spink, ; Ma, ; Peng et al., ), rice (Ookawa & Ishihara, , ) and Arabidopsis (Jones, Ennos, & Turner, ). In the present study, our results suggested that the lignin accumulation is closely related to the lodging resistance of common buckwheat, and higher lignin accumulation could strengthen the lodging‐resistant ability of common buckwheat, which was consistent with the previous study (Wang, Hu, et al., ; Wang, Ruan, et al., ).…”

Section: Discussionsupporting

confidence: 93%

“…S‐3307 positively regulated and GA3 negatively regulated the lignin metabolism. The same results were reported in other studies in common buckwheat (Liu et al., , ; Wang et al., ; Wang, Hu, et al., ). In addition, Peng et al.…”

Section: Discussionsupporting

confidence: 90%

“…It was also reported that the lignin content and its related enzymes activities were significantly related to lodging resistance of culm in common buckwheat and buckwheat cultivars with high lodging resistance usually have large culm quality and short second internode length (Wang, et al. ; Wang, Hu, et al., ; Wang, Ruan, et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…() reported that uniconazole significantly decreased the risk of lodging occurred by increasing the lignin content and its related enzymes activities of culm in common buckwheat. The treatment of seed dressing with 200 mg/kg uniconazole powder or foliar spraying with 75 mg/L uniconazole solution could optimize the culm structure, improve the culm quality, reduce the lodging risk and enhance the yield of common buckwheat (Liu et al., , ; Wang, Hu, et al., ). However, little is known about the treatment of spraying with uniconazole or gibberellic acid on lignin biosynthesis and accumulation related to lodging resistance of culms in common buckwheat.…”

Section: Introductionmentioning

confidence: 99%

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Effects of uniconazole or gibberellic acid application on the lignin metabolism in relation to lodging resistance of culm in common buckwheat (Fagopyrum esculentum M.)

Fang

Liu

Zhang

et al. 2018

J Agronomy Crop Science

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Lignin plays an important role in increasing the mechanical intensity of culm and improving lodging resistance of culm. In this study, three common buckwheat, Youqiao2 (lodging‐tolerant cultivar; YQ2), Ningqiao1 (middle lodging‐tolerant cultivar; NQ1) and Ukraine daliqiao (lodging‐susceptible cultivar; UD), were used to investigate the effects of spraying exogenous hormones uniconazole (S‐3307) or gibberellic acid (GA3) on lignin metabolism and its relation to lodging resistance in the three common buckwheat cultivars. Results showed that application of S‐3307 significantly increased lignin content and its related enzymes activities of phenylalanine ammonia‐lyase (PAL), 4‐hydroxy cinnamoyl CoA ligase (4CL), cinnamyl alcohol dehydrogenase (CAD) and peroxidase (POD). The major genes involved in lignin synthesis, PAL, CCR (cinnamyl CoA reductase), C4H (cinnamate4‐hydroxylase), 4CL and CCoAOMT (caffeoyl CoA O‐methyltransferase), were all upregulated expression, and COMT (catechol‐O‐methyltransferase) was downregulated. What is more, application of S‐3307 significantly improved the resistance of common buckwheat stem to lodging and increased yield. Whereas, spraying with GA3 caused opposite effect on those characteristics. These results suggested that application of exogenous S‐3307 or GA3 significantly changed the risk of lodging occurred by regulating the lignin metabolism in culms of common buckwheat.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of uniconazole or gibberellic acid application on the lignin metabolism in relation to lodging resistance of culm in common buckwheat (Fagopyrum esculentum M.)

Fang

Liu

Zhang

et al. 2018

J Agronomy Crop Science

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“…It is not only associated with plant growth and development, but it also provides the plant body with mechanical strength (Peng et al, 2014). Lignin content is closely related to the lodging resistance of common buckwheat, and higher lignin content could strengthen this crop's lodging resistance (Wang et al, 2015). Lodging control in wheat is mainly determined by genetic factors, but it can also be regulated by plant density (Jin‐Cai et al, 2005, Ling et al, 2007) In Wang et al (2015), lignin content increased with increasing plant density.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Planting Density on Lodging Resistance, Related Enzyme Activities, and Grain Yield in Different Genotypes of Oilseed Flax

Gao

Jiang

et al. 2018

Crop Science

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Knowledge of planting density and lodging resistance is essential to developing effective cropping systems. This study determined (i) the lodging resistance of different genotypes of oilseed flax (Linum usitatissimum L.) under different planting densities, and (ii) the effect of density on lignin content and related enzyme activities in different genotypes in Northwest China. We hypothesized that (i) lignin content and related enzyme activities varied with different planting densities, and (ii) a planting density of 750 × 104 grains ha−1 increased the lignin content and related enzyme activities of stem tissues and improved lodging resistance. The characteristics of oilseed flax from three different cultivars—‘Dingya 23’(V1), ‘Jinya 10’(V2), and ‘Neiya 9’(V3)—were evaluated under different planting densities. Results indicated that increasing plant density increased the phenylalanine ammonia‐lyase (PAL) and tyrosine ammonia‐lyase (TAL) activities but decreased the 4‐coumarate:CoA ligase (4CL) activity and lignin content of a high‐lodging‐resistance cultivar. However, increasing plant density decreased the PAL and TAL activities but increased the 4CL and lignin content of a low‐lodging‐resistance cultivar. We conclude that plant density affected the plant lignin content by regulating the 4CL activity. Flax seed yield increases with density were mainly due to increased lignin content, bending strength, and regulated PAL, TAL, and 4CL activities. The study concluded that optimizing planting density could play an important role in crop lodging resistance and grain yields in the northwest of China.

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Foliar application uniconazole enhanced lodging resistance of hybrid indica rice by altering basal stem quality under poor light stress

et al. 2021

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Poor light stress causes lodging risks in hybrid indica rice (Oryza sativa L.) in Sichuan Basin, China. However, the effective way of improving lodging resistance of hybrid indica rice by plant regulation strategy under poor light stress has not yet been investigated. A 2‐yr field study, comparing the three foliar application uniconazole rates under normal light and shading condition, was conducted to determine the lodging resistance and its physiological mechanism by using two hybrid rice varieties (Yuxiang203 [YX203] and Cliangyouhuazhan [CLYHZ]). The results showed that shading significantly decreased grain yield, but, increased lodging index (LI) due to poor stem breaking strength (M). Also, shading increased the non‐structural carbohydrates (NSC), but reduced structural carbohydrate (SC), especially for lignin in basal culm and thus, weakened the stem stiffness. Grain yield was first increased, and then declined with increasing foliar uniconazole rates. And, LI decreased sharply owing to improvement of M while reduction of bending moment by whole plant (WP). Larger section modulus (SM) of YX203 and higher bending stress (BS) of CLYHZ were contributed to higher M. Correlation analysis showed that M was significantly correlated with culm diameter, culm wall thickness and SC content for YX203, and that with SC content for CLYHZ, respectively. The results indicated that foliar application of uniconazole increased lodging resistance of hybrid indica rice for larger M and SC accumulation in basal stem. Uniconazole foliar application at 40 mg L–1 can increase lodging resistance while maintaining grain yield of hybrid indica rice in the Sichuan Basin, China.

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Effects of uniconazole on the lignin metabolism and lodging resistance of culm in common buckwheat (Fagopyrum esculentum M.)

Cited by 106 publications

References 36 publications

Effects of uniconazole or gibberellic acid application on the lignin metabolism in relation to lodging resistance of culm in common buckwheat (Fagopyrum esculentum M.)

Effects of uniconazole or gibberellic acid application on the lignin metabolism in relation to lodging resistance of culm in common buckwheat (Fagopyrum esculentum M.)

The Effects of Planting Density on Lodging Resistance, Related Enzyme Activities, and Grain Yield in Different Genotypes of Oilseed Flax

Foliar application uniconazole enhanced lodging resistance of hybrid indica rice by altering basal stem quality under poor light stress

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