Varietal Difference of the Cell Wall Components Affecting the Bending Stress of the Culm in Relation to the Lodging Resistance in Paddy Rice.

Ookawa, Taiichiro; Ishihara, Kuni

doi:10.1626/jcs.62.378

Cited by 69 publications

(58 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A high lignin content may increase the physical strength of culm in buckwheat. Various workers also reported that lignin is an important factor for lodging resistance of wheat and rice (Ookawa and Ishihara, 1993;Ma, 2009). Our results showed that the lignin content is closely related to the lodging resistance of buckwheat, and higher lignin content could strengthen the lodging resistance of buckwheat.…”

Section: Discussionsupporting

confidence: 65%

Effects of Nitrogen Fertilizer and Planting Density on the Lignin Synthesis in the Culm in Relation to Lodging Resistance of Buckwheat

Wang

Ruan

Yuan

et al. 2015

Plant Production Science

View full text Add to dashboard Cite

Lodging is an important constraint limiting buckwheat yield and quality by bending or breaking culm on buckwheat production worldwide. This study was conducted with Ningqiao 01, a moderate lodging resistance cultivar of buckwheat, to determine whether lignin synthesis and lodging resistance of buckwheat are affected by nitrogen fertilizer and planting density. The results showed that the lignin content at the bottom of the 2nd internode was significantly and negatively correlated with lodging index and lodging percentage, but significantly and positively correlated with snapping resistance. The snapping resistance rose and then fell with the increase of nitrogen fertilizer. The snapping resistance decreased with the increase of planting density. The lodging index increased with the increase of nitrogen fertilizer and planting density. The lignin content and its related enzymes activities decreased with the increase of nitrogen fertilizer and planting density. These results suggested that the lignin content is closely related to the lodging resistance of buckwheat, and a higher lignin content could strengthen the lodging resistance of buckwheat. The increase of nitrogen fertilizer and planting density significantly increased the risk of lodging by decreasing the lignin content and its related enzymes activities at the bottom of the 2nd internode.Key words: Buckwheat, Lignin, Lodging, Nitrogen fertilizer, Planting density.Buckwheat (Fagopyrum esculentum), which belongs to the family Polygonaceae, genus Fagopyrum, is commonlyconsumed in arid and cold regions in the world (Koyama et al., 2013). Buckwheat species native to China have been systematically classified since 1913 and it has been praised as one of the most faddish green function in the 21st century (Guo et al., 2007). Buckwheat grains are an important source of macroelements such as K, Ca, Mg, and Na as well as microelements such as Mn, Zn, Se, and Cu (Wei et al., 2003), and they contain rutin, riboflavin, pyridoxine, thiamine, lysine, methionine, arginine, and threonine (Fabjan et al., 2003). The starch of buckwheat includes numerous compounds that have been identified to have beneficial effects on human health, including lowering both blood lipid and sugar levels (MendlerDrienyovszki et al., 2013).Lodging, the permanent displacement of stems from an upright position due to internal and external factors (Pinthus, 1973), is an important constraint limiting crop yields and quality (Crook and Ennos, 1994). Severe lodging destroys plant morphology, resulting in the reduction of photosynthetic ability, grain yield, grain filling, and harvesting efficiency (Berry and Spink, 2012). Enhancing the physical strength of the culm is important for lodging resistance. In spite of the vast research performed to reduce lodging in major cereal crops, such as wheat and rice, lodging is still a dominant contributor to yield reduction (Athwal, 1971;Murakami et al., 2012). Lodging caused a 14.3% loss in rice production in coastal regions of Jiangsu China (Zhang et a...

show abstract

Section: Discussionsupporting

confidence: 65%

Effects of Nitrogen Fertilizer and Planting Density on the Lignin Synthesis in the Culm in Relation to Lodging Resistance of Buckwheat

Wang

Ruan

Yuan

et al. 2015

Plant Production Science

View full text Add to dashboard Cite

show abstract

“…Others have reported lignin concentrations of 15% to 21% in rice, [29][30][31] 20% to 24% in bagasse, 32,33) and 15% in maize. 34) Lignin is a polyphenol compound that prevents the saccharification of cellulose by inhibiting cellulolytic enzymes.…”

Section: Discussionmentioning

confidence: 97%

Genotypic Variations in Non-Structural Carbohydrate and Cell-Wall Components of the Stem in Rice, Sorghum, and Sugar Vane

Arai‐Sanoh

Ida

Zhao

et al. 2011

Bioscience, Biotechnology, and Biochemistry

View full text Add to dashboard Cite

We evaluated genetic variations in the non-structural carbohydrate (NSC) and the cell-wall components of stem in rice, sorghum, and sugar cane to assess the potential suitability of these gramineous crops for bioethanol production. For NSC, the maximum soluble sugar concentration was highest in sugar cane, followed by sorghum with sucrose. The major NSC in rice was starch, but there were wide variations in the starch to soluble sugar ratios among the cultivars. The total concentration of cell-wall components was negatively correlated with the NSC concentration, indicating competition for carbon sources. Among the cell-wall components, lignin was relatively stable within each group. The major sugar species composing hemicellulose was xylose in all crop groups, but there were differences in composition, with a higher fraction of arabinose and glucose in rice as compared to the other crops. In rice, there was less lignin than in sorghum or sugar cane; this might be advantageous for the efficient saccharification of cellulose.

show abstract

“…21) Culm physical strength is often assessed in terms of bending moment at breaking (BMB) (Fig. 4b).…”

Section: Increased Ga Improves Culm Strength and Biomass Yieldmentioning

confidence: 99%

Engineering the lodging resistance mechanism of post-Green Revolution rice to meet future demands

Hirano

Ordonio

Matsuoka

2017

Proceedings of the Japan Academy. Ser. B: Physical and Biologic

View full text Add to dashboard Cite

Traditional breeding for high-yielding rice has been dependent on the widespread cultivation of gibberellin (GA)-deficient semi-dwarf varieties. Dwarfism lowers the “center of gravity” of the plant body, which increases resistance against lodging and enables plants to support high grain yield. Although this approach was successful in latter half of the 20th century in rice and wheat breeding, this may no longer be enough to sustain rice with even higher yields. This is because relying solely on the semi-dwarf trait is subject to certain limitations, making it necessary to use other important traits to reinforce it. In this review, we present an alternative approach to increase lodging resistance by improving the quality of the culm by identifying genes related to culm quality and introducing these genes into high-yielding rice cultivars through molecular breeding technique.

show abstract

Varietal Difference of the Cell Wall Components Affecting the Bending Stress of the Culm in Relation to the Lodging Resistance in Paddy Rice.

Cited by 69 publications

References 2 publications

Effects of Nitrogen Fertilizer and Planting Density on the Lignin Synthesis in the Culm in Relation to Lodging Resistance of Buckwheat

Effects of Nitrogen Fertilizer and Planting Density on the Lignin Synthesis in the Culm in Relation to Lodging Resistance of Buckwheat

Genotypic Variations in Non-Structural Carbohydrate and Cell-Wall Components of the Stem in Rice, Sorghum, and Sugar Vane

Engineering the lodging resistance mechanism of post-Green Revolution rice to meet future demands

Contact Info

Product

Resources

About