Effect of Zn deficiency on net photosynthetic rate, 14C partitioning, and oil accumulation in leaves of peppermint

Srivastava, N. K.; Misra, A.; Sharma, S.

doi:10.1023/a:1022127305883

Cited by 26 publications

(12 citation statements)

References 22 publications

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“…Several studies dealing with the influence of elevated CO 2 levels on the growth and biochemical composition of plants have been conducted [ 32 , 33 ]. Dry weight of leaves, stems and rhizomes of ginger varieties were enhanced with rising CO 2 ( Table 1 ).…”

Section: Resultsmentioning

confidence: 99%

Effect of CO2 Enrichment on Synthesis of Some Primary and Secondary Metabolites in Ginger (Zingiber officinale Roscoe)

Ghasemzadeh

Jaafar

2011

IJMS

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The effect of two different CO2 concentrations (400 and 800 μmol mol−1) on the photosynthesis rate, primary and secondary metabolite syntheses and the antioxidant activities of the leaves, stems and rhizomes of two Zingiber officinale varieties (Halia Bentong and Halia Bara) were assessed in an effort to compare and validate the medicinal potential of the subterranean part of the young ginger. High photosynthesis rate (10.05 μmol CO2 m−2s−1 in Halia Bara) and plant biomass (83.4 g in Halia Bentong) were observed at 800 μmol mol−1 CO2. Stomatal conductance decreased and water use efficiency increased with elevated CO2 concentration. Total flavonoids (TF), total phenolics (TP), total soluble carbohydrates (TSC), starch and plant biomass increased significantly (P ≤ 0.05) in all parts of the ginger varieties under elevated CO2 (800 μmol mol−1). The order of the TF and TP increment in the parts of the plant was rhizomes > stems > leaves. More specifically, Halia Bara had a greater increase of TF (2.05 mg/g dry weight) and TP (14.31 mg/g dry weight) compared to Halia Bentong (TF: 1.42 mg/g dry weight; TP: 9.11 mg/g dry weight) in average over the whole plant. Furthermore, plants with the highest rate of photosynthesis had the highest TSC and phenolics content. Significant differences between treatments and species were observed for TF and TP production. Correlation coefficient showed that TSC and TP content are positively correlated in both varieties. The antioxidant activity, as determined by the ferric reducing/antioxidant potential (FRAP) activity, increased in young ginger grown under elevated CO2. The FRAP values for the leaves, rhizomes and stems extracts of both varieties grown under two different CO2 concentrations (400 and 800 μmol mol−1) were significantly lower than those of vitamin C (3107.28 μmol Fe (II)/g) and α-tocopherol (953 μmol Fe (II)/g), but higher than that of BHT (74.31 μmol Fe (II)/g). These results indicate that the plant biomass, primary and secondary metabolite synthesis, and following that, antioxidant activities of Malaysian young ginger varieties can be enhanced through controlled environment (CE) and CO2 enrichment.

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Section: Resultsmentioning

confidence: 99%

Effect of CO2 Enrichment on Synthesis of Some Primary and Secondary Metabolites in Ginger (Zingiber officinale Roscoe)

Ghasemzadeh

Jaafar

2011

IJMS

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“…Saccarides are also a source of energy and reducing power for terpenoid synthesis. As zinc is involved in photosynthesis and saccaride metabolism, CO 2 and glucose are the most likely sources of carbon utilized in the terpene biosynthesis, the role of zinc in influencing the essential oil accumulation seems particularly important [76]. Either zinc is an essential micronutrient that acts as a metal component of various enzymes or as a functional, structural, or regulatory cofactor associated with saccharide metabolism, photosynthesis, and protein synthesis [13].…”

Section: Discussionmentioning

confidence: 99%

ZnO Nanofertilizer and He Ne Laser Irradiation for Promoting Growth and Yield of Sweet Basil Plant

El-Kereti¹,

Elfeky²,

Khater³

et al. 2014

FNA

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This study was conducted to evaluate the effectiveness of zinc nanofertilizer strategy on sweet basil yield, through alone application or combined with pre-sowing laser irradiation. Furthermore, evaluate the growth of plant and the level of active essential oil constituents. Zinc oxide (ZnO) nanoparticles (NPs) were synthesized, and transmission electron microscope revealed particle size of approximately 10.5-15.5 nm. ZnO NPs were applied to sweet basil plants by foliar spray at varying concentrations (10, 20 and 30 mg/L); He Ne laser of power 3mW was used for red light irradiation of sweet basil seeds for 2 min. exposure time. Total chlorophyll, total carbohydrate, essential oil levels, zinc content, plant height, branches/plant and fresh weight were measured. In general, the combined foliar spray application of ZnO nanofertilizer with pre-sowing He Ne laser irradiation showed more effectiveness than ZnO nanofertilizer alone and 20mg/L concentration gave the highest results of all measured traits. Statistical analysis (t-test) showed significant differences among the effects of the various concentrations of zinc oxide NPs on these attributes. The results showed an inverse relationship between the total carbohydrate content and the percentage of essential oil in the leaves. Together these findings support the usefulness and effectiveness of zinc oxide nanofertilizer and laser irradiation treatment to enhance the growth and yield of sweet basil plants. The article presents some promising patents on ZnO nanofertilizer and He Ne laser irradiation.

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“…Carbohydrates are a resource of energy and reducing power for terpenoid synthesis. CO 2 fixation, content of primary metabolites and sucrose metabolism are closely linked with essential oil accumulation (Srivastava et al, 1997). As zinc is involved in photosynthesis and carbohydrate metabolism and CO 2 and glucose are the most likely sources of carbon utilized in terpenoid biosynthesis, the role of Zn in influencing of essential oil accumulation seems particularly important.…”

Section: Essential Oil Yieldmentioning

confidence: 99%

Effects of soil and foliar applications of iron and zinc on flowering and essential oil of chamomile at greenhouse conditions

Nasiri

Najafi

2015

AAS

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In order to study the effects of soil and foliar applications of iron (Fe) and zinc (Zn) on flowering, flower yield and essential oil production of German chamomile a pot experiment was conducted under greenhouse conditions at the Faculty of Agriculture, University of Tabriz, Iran in 2012. The experiment was arranged as completely randomized design with 12 treatments and three replications. ), T 9 : T 5 +T 7 , T 10 : T 5 +T 8 , T 11 : T 6 +T 7 , T 12 : T 6 +T 8 . The foliar spraying was done two times during the growing period. The results revealed that the flower number, flower yield, essential oil content and essential oil yield were significantly increased by soil and foliar applications of Fe + Zn, compared with the control (untreated). The highest flower number (477 plant -1 ), flower yield (11.6 g pot -1 ), essential oil content (0.88 %) and essential oil yield (119 mg pot -1 ) were recorded for the soil application of Fe + Zn (T 4 ) by 58, 68, 21.4 and 105 % increment compared to the control, respectively. Foliar application of Fe + Zn (T 12 ) was placed at the next rank; however this treatment had no significant difference with the soil application of Fe + Zn (T 4 ). Other treatments did not show significant differences with the control. Generally, the results showed that soil or foliar application of Fe + Zn can be effective on increase or improve of quantity and quality of chamomile yield. Moreover, use of foliar application as a low cost method especially in areas with alkaline or calcareous soils can be recommended. ), T 9 : T 5 +T 7 , T 10 : T 5 +T 8 , T 11 : T 6 +T 7 , T 12 : T 6 +T 8 . Škropljenje listov je bilo opravljeno dvakrat v rastni dobi. Rezultati so pokazali, da je talno in foliarno gnojenje z Fe + Zn značilno povečalo število cvetov, pridelek cvetov, vsebnost in pridelek eteričnih olj v primerjavi s kontrolo. Največje število cvetov (477 na rastlino), največji pridelek cvetov (11.6 g na lonec), največja vsebnost eteričnih olj (0.88 %) in največji pridelek eteričnih olj (119 mg na lonec) so bili izmerjeni pri talnem dodajanju Fe + Zn (T 4 ), povečanje je bilo za 58, 68, 21.4 in 105 % glede na kontrolno obravnavanje. Učinek foliarnega dodajanja Fe + Zn (T 12 ) je bil takoj za talnim dodajanjem Fe + Zn (T 4 ), vendar se od njega ni značilno razlikoval. Druga obravnavanja niso dala značilnih odstopanj od kontrole. V splošnem so rezultati pokazali, da lahko tako talno kot foliarno dodajanje Fe + Zn učinkovito poveča ali izboljša količino in kvaliteto pridelka prave kamilice. Uporabo foliarnega dodajanja bi kot poceni način gnojenja še posebej priporočali na območjih , kjer so tla bazična ali apnenčasta.

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Effect of Zn deficiency on net photosynthetic rate, 14C partitioning, and oil accumulation in leaves of peppermint

Cited by 26 publications

References 22 publications

Effect of CO2 Enrichment on Synthesis of Some Primary and Secondary Metabolites in Ginger (Zingiber officinale Roscoe)

Effect of CO2 Enrichment on Synthesis of Some Primary and Secondary Metabolites in Ginger (Zingiber officinale Roscoe)

ZnO Nanofertilizer and He Ne Laser Irradiation for Promoting Growth and Yield of Sweet Basil Plant

Effects of soil and foliar applications of iron and zinc on flowering and essential oil of chamomile at greenhouse conditions

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