Tannin diagenesis in mangrove leaves from a tropical estuary: a novel molecular approach

Hernes, Peter J.; Benner, Ronald; Cowie, Gregory L.; Goñi, Miguel A.; Bergamaschi, Brian A.; Hedges, John I.

doi:10.1016/s0016-7037(01)00641-x

Cited by 183 publications

(159 citation statements)

References 26 publications

Supporting

Mentioning

147

Contrasting

Unclassified

Order By: Relevance

“…Estimated to be the fourth most abundant biochemical produced by vascular plant tissue after cellulose, hemicellulose, and lignin, tannins represent a significant portion of terrestrial biomass C (Hernes and Hedges 2000;Hernes et al 2001). Leaves and bark may contain up to 40% tannin by dry weight (Matthews et al 1997;Zhang et al 2009), and in leaves and needles tannin concentrations can exceed lignin levels (Hernes et al 2001). On the other hand, tannin is widely distributed in plants and terrestrial ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Effects of fertilization and drought stress on tannin biosynthesis of Casuarina equisetifolia seedlings branchlets

Zhang

Shao

Ye³

et al. 2012

Acta Physiol Plant

View full text Add to dashboard Cite

Nutrient, water, and their interactions influence the allocation of investment by plants to resistance and tolerance traits. We used a completely crossed randomizedblock design experiment to examine the independent and interactive effects of nutrients and water availability on tannin production of C. equisetifolia seedlings. The results showed that nitrogen and phosphorus fertilizer have significant effects on total phenolics (TP) and extractable condensed tannins (ECT) concentrations of branchlets. TP and ECT concentrations decreased with fertilizer addition and increased in arid condition. This pattern lends to support source-sink hypothesis such as the carbon-nutrient balance (CNB) hypothesis and the growth-differentiation balance (GDB) hypothesis. Soluble sugars or starch concentrations were both inversely related to TP concentrations. However, there was no significant correlation between them and ECT concentrations. In addition, chlorophyll concentration had a positive linear correlation with TP and no significant correlation with ECT. On the contrary, chlorophyll a/b ratios were negatively correlated with TP and positively correlated with ECT. The discrepancy of relationship between carbohydrates and TP or ECT showed that the biosynthetic routes of different tannins were different. In this study, no significant correlation between TP and N, or ECT and N, did not support protein competition model (PCM). TP:N and ECT:N ratios were higher in nutrient deficiency and arid conditions, which were one of the important nutrient conservation strategies for C. equisetifolia.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of fertilization and drought stress on tannin biosynthesis of Casuarina equisetifolia seedlings branchlets

Zhang

Shao

Ye³

et al. 2012

Acta Physiol Plant

View full text Add to dashboard Cite

show abstract

“…Tannins enter the agricultural ecosystem by leaching and litter inputs both above and below ground. A large fraction of tannins and simpler phenolics appear to enter the soil as foliar leachate 10 . These tannins are known to affect several microbial processes such as decomposition and nitrogen fi xation 11 .…”

Section: Resultsmentioning

confidence: 99%

Inhibitory activity of pine needle tannin extracts on some agriculturally resourceful microbes

2007

View full text Add to dashboard Cite

Crude extracts of water and solvent extractable tannin fractions from pine needles were found to contain tannin concentrations of 10.15% and 13.15% tannic acid equivalents respectively. Thin Layer Chromatography revealed the presence of four distinct phenolic compounds, amongst which two were tannic acid like compounds. Both the extracts were found to be inhibitory to several microbes of agricultural importance. Amongst the bacterial strains studied, Azotobacter sp (VL-A2) was able to tolerate upto 1000 ppm of crude tannin concentration without any growth inhibition. While growth of Rhizobium (VL -R1) and Bacillus halodurans (MTCC 7181) was inhibited by crude tannin concentrations of 50 and 100 ppm respectively of both water and solvent extracted tannins. Among the fungal genera, Pleurotus djamor was found to tolerate up to 10000 ppm of crude tannins, while Trichoderma virescens (MTCC 6321) and T. reesii could tolerate up to 3000 ppm of both water extractable and acetone extractable crude tannins without any growth inhibition.

show abstract

“…The flavonoid units are treering flavonols with fifteen carbons. The molecular weight of condensed tannins ranges from around 500 to over 20,000 [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…The hydrolysable tannins are obtained from the fruit, pod, and wood of several trees (fruit of Terminalia chebula, pod of Caesalpinia coriaria, and wood of Castanea valonea) [1][2][3][4]. This class of tannin is made up mainly of gallic and digallic acids, which are often esterified to polyols [3], and have molecular weights of up to 3000 [1].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Black Wattle Tannin As Steel Corrosion Inhibitor

2012

View full text Add to dashboard Cite

In order to reduce the environmental impacts caused by chemical substances harmful to the environment and human health, the black wattle tannin can be used as an environmentally friendly corrosion inhibitor in acid and near neutral media. This paper provides information on the application of black wattle tannin as an inhibitor against the corrosion of carbon steel. The inhibition was evaluated using potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS) at room temperature in aerated 0.1 mol L −1 Na 2 SO 4 (pH 6.0 and 2.5). The black wattle tannin when used as a corrosion inhibitor is more effective at acidic pH, its efficiency being dependent on its concentration. At the higher pH value (pH 6.0), a blue-black film (ferric tannate) with a short-term protection against corrosion was formed in aerated aqueous solution. At pH 2.5, this blue-black film was not observed.

show abstract

Tannin diagenesis in mangrove leaves from a tropical estuary: a novel molecular approach

Cited by 183 publications

References 26 publications

Effects of fertilization and drought stress on tannin biosynthesis of Casuarina equisetifolia seedlings branchlets

Effects of fertilization and drought stress on tannin biosynthesis of Casuarina equisetifolia seedlings branchlets

Inhibitory activity of pine needle tannin extracts on some agriculturally resourceful microbes

Black Wattle Tannin As Steel Corrosion Inhibitor

Contact Info

Product

Resources

About