Silicon availability changes structural carbon ratio and phenol content of grasses

Schaller, Jörg; Brackhage, Carsten; Dudel, E. Gert

doi:10.1016/j.envexpbot.2011.12.009

Cited by 113 publications

(73 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In wheat seedlings exposed to UV-B, the content of flavonoids increased with the concentration of Si treatment (Yao et al 2011). The UV-B screening effect of the silicon double layer (Schaller et al 2013), as well as the recently found reverse content of silicon and phenols in grasses (Schaller et al 2012) point to the similar function phenols and silicon may have under UV-B stress. It is not yet clear, whether plants are able to actively form a Si double layer or it is only side effect of Si accumulation.…”

Section: Discussionmentioning

confidence: 88%

Impact of silicon on maize seedlings exposed to short-term UV-B irradiation

2014

View full text Add to dashboard Cite

Enhanced UV-B irradiation is one of the most important abiotic stresses that can influence various aspects of plant morphology, biochemistry and physiology. Silicon as a beneficial element can increase the plant's tolerance against different abiotic stresses, including UV-B stress. In this work, the effect of silicon supplementation on the sensitivity of young maize (Zea mays L.) seedlings exposed to short-term UV-B radiation was studied. The seedlings were grown with 0 or 5 mM silicon in cultivation medium and on the fifth day of cultivation, they were exposed for 15 and 30 min to UV-B (302 nm) radiation. No significant changes in growth and content of assimilation pigments and the chlorophyll a/b ratio were observed in any of tested irradiation periods in control or Si-treated plants. Under UV-B stress, the content of ROS (hydrogen peroxide and superoxide radical) and TBARS increased in control plants. The oxidative status of Si-treated plants was only slightly affected even after 30 min. Phenolic metabolites (total phenols and flavonoids), important for their screening function under radiation stress, slightly increased after UV-B exposure in control plants, however, only flavonoids increased after 30 min in Si-treated plants. The measured parameters indicated that to some extent silicon supplementation contributes to higher UV-B tolerance of maize seedlings.

show abstract

Section: Discussionmentioning

confidence: 88%

Impact of silicon on maize seedlings exposed to short-term UV-B irradiation

2014

View full text Add to dashboard Cite

show abstract

“…In addition, a model with Klason lignin as the only parameter, and the best model without Klason ash are included investigated the relationship between silica and other components of the plant cell wall and offer some insight into the correlations we observed between ash and lignin. Silica soil amendments reduce cellulose and phenolic acid levels in rice leaves [71], but at least in Phragmites australis, a wetland grass, cellulose, and lignin levels were inconsistent under various silica treatments in leaf blades, leaf sheaths, and stem [72]. Rice mutants deficient in silica uptake have more lignin compared to wild-type plants, and it was observed in wildtype plants that when silica availability was decreased, lignin increased [73].…”

Section: Multiple Roles For Silica?mentioning

confidence: 99%

Cell Wall Composition and Bioenergy Potential of Rice Straw Tissues Are Influenced by Environment, Tissue Type, and Genotype

et al. 2015

View full text Add to dashboard Cite

Breeding has transformed wild plant species into modern crops, increasing the allocation of their photosynthetic assimilate into grain, fiber, and other products for human use. Despite progress in increasing the harvest index, much of the biomass of crop plants is not utilized. Potential uses for the large amounts of agricultural residues that accumulate are animal fodder or bioenergy, though these may not be economically viable without additional efforts such as targeted breeding or improved processing. We characterized leaf and stem tissue from a diverse set of rice genotypes (varieties) grown in two environments (greenhouse and field) and report bioenergy-related traits across these variables. Among the 16 traits measured, cellulose, hemicelluloses, lignin, ash, total glucose, and glucose yield changed across environments, irrespective of the genotypes. Stem and leaf tissue composition differed for most traits, consistent with their unique functional contributions and suggesting that they are under separate genetic control. Plant variety had the least influence on the measured traits. High glucose yield was associated with high total glucose and hemicelluloses, but low lignin and ash content. Bioenergy yield of greenhouse-grown biomass was higher than field-grown biomass, suggesting that greenhouse studies overestimate bioenergy potential. Nevertheless, glucose yield in the greenhouse predicts glucose yield in the field Electronic supplementary material The online version of this article (

show abstract

“…In leaves, Si is deposited in the space immediately beneath the cuticle layer, forming a cuticle-Si double layer in leaf blades (Hodson and Sangster 1988 ;Ma and Yamaji 2006 ;Currie and Perry 2007 ;Schaller et al 2012 ). Such Si double layer may act like a glass layer and decrease the further transmission of UV radiation from the epidermis (Gatto et al 1998 ).…”

Section: Uv Radiationmentioning

confidence: 99%

Silicon-Mediated Tolerance to Other Abiotic Stresses

Liang

Nikolić

Bélanger

et al. 2015

Silicon in Agriculture

View full text Add to dashboard Cite

Silicon (Si) has been reported to mitigate some other abiotic stresses such as boron (B) toxicity, potassium (K) and phosphorus (P) defi ciency, iron (Fe) defi ciency, excess of nitrogen and phosphorus, UV radiation and fl ooding. In this chapter, current knowledge concerning the roles Si may play under such abiotic stresses is overviewed. More recently, rapid progress has been made at both the physiological and molecular levels in dissecting the mechanisms involved in Si-induced root mobilization of Fe from the rhizosphere and acquisition of root apoplastic Fe, thereby mitigating Fe-defi ciency chlorosis in strategy 1 plants.Keywords Boron toxicity • Excess of nitrogen and phosphorus • Flooding • Irondefi ciency chlorosis • Potassium and phosphorus defi ciency • UV radiation

show abstract

Silicon availability changes structural carbon ratio and phenol content of grasses

Cited by 113 publications

References 30 publications

Impact of silicon on maize seedlings exposed to short-term UV-B irradiation

Impact of silicon on maize seedlings exposed to short-term UV-B irradiation

Cell Wall Composition and Bioenergy Potential of Rice Straw Tissues Are Influenced by Environment, Tissue Type, and Genotype

Silicon-Mediated Tolerance to Other Abiotic Stresses

Contact Info

Product

Resources

About