Geographical variation in breaking the seed dormancy of Persian cumin (Carum carvi L.) ecotypes and their physiological responses to salinity and drought stresses

Hammami, Hossein; Saadatian, B; Aliverdi, Akbar

doi:10.1016/j.indcrop.2018.08.040

Cited by 14 publications

(6 citation statements)

References 27 publications

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“…Therefore, leaf hydrogen peroxide content under stress conditions can be used as a suitable indicator for selection in salinity tolerance. This kind of variation was also observed in Apiaceae plants including Carum carvi L. 44 and Foeniculum vulgare Mill 45 .…”

Section: Physiological Evaluationssupporting

confidence: 55%

Physiological, morphological and phytochemical responses of ajowan (Trachyspermum ammi L.) populations to salt stress

Mirniyam¹,

Rahimmalek²,

Arzani³

et al. 2021

Preprint

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Twenty-eight populations of ajowan (Trachyspermum ammi L.) were evaluated for morphological traits and oil yield in two consecutive years. Then, selected ajowan populations that revealed medium and high oil yield and higher seed weight in two years were selected for further studies. These were assessed for physiological traits, total phenolic and flavonoid contents and antioxidant capacity under four salt treatments control, 60, 90, and 120 mM NaCl. The essential oil composition was analyzed by gas chromatography-mass spectrometry (GC-MS) Thymol (32.7-54.29%), γ -terpinene (21.71–32.81%), and p-cymene (18.74–26.16%) were major components. The highest and lowest thymol were recorded for Qazvin (control) and Qazvin (Low salt concentration), respectively. Salt stress caused an increase in essential oil content of Esfahfo and Qazvin populations. The highest phenolic and flavonoid contents were found in Arak population grown in 60 mM NaCl (183.83 mg TAE g− 1 DW) and Yazd population grown in 90 mM NaCl (5.94 mg QE g− 1 DW). Moreover, Yazd population exhibited the strongest antioxidant activity based on DPPH (IC50 = 1566µg/mL) under 60 mM NaCl and the highest reducing power (0.69 nm) under 120 mM NaCl. Overall, the results revealed that low and moderate salt stress improves the phytochemicals of ajowan, being especially useful for pharmaceutical and food applications.

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Section: Physiological Evaluationssupporting

confidence: 55%

Physiological, morphological and phytochemical responses of ajowan (Trachyspermum ammi L.) populations to salt stress

Mirniyam¹,

Rahimmalek²,

Arzani³

et al. 2021

Preprint

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“…Low temperature is the most typical factor controlling the physiological dormancy of seeds of plants in temperate climates [ 60 ]. Prechilling has been shown on numerous occasions to be effective in breaking seed dormancy for such species [ 64 , 65 , 66 ].…”

Section: Discussionmentioning

confidence: 99%

The Effectiveness of the Sexual Reproduction in Selected Clonal and Nonclonal Species of the Genus Ranunculus

Kocot

Sitek

Nowak

et al. 2022

Biology

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Generative processes have been evaluated in six European buttercup species in order to verify the hypothesis that the reproduction efficiency of clonal species is lower than that of nonclonal ones. The study covered common species (Ficaria verna, Ranunculus auricomus, R. bulbosus, R. cassubicus, R. lanuginosus) and the endangered R. illyricus. The following properties have been assessed: pollen viability (staining method), pollen grain germination and the pollen-tube elongation in pistil tissues (fluorescence microscopy), seed formation efficiency, seed viability (tetrazolium test) and germination ability by introducing factors interrupting dormancy (low temperature and gibberellin application). Additionally, the pistil morphology was documented for R. bulbosus, R. illyricus and R. cassubicus using SEM techniques. It was demonstrated that the reproductive efficiency, expressed as the production of viable seeds able to germinate, was significantly higher in the species reproducing sexually (especially in R. lanuginosus) compared to the clonal ones. However, the complexity observed leads to separation of an additional group (cluster) of apomictic species: R. auricomus and R. cassubicus, distinguished by the lowest pollen viability and a low ability of the seeds to germinate. In the vegetatively reproducing R. illyricus, the seed formation efficiency was just 13.2% despite the having highest number of pistils in its flowers. The developed seeds of this species observed in our experiment were viable, but in general effective methods to stimulate their germination have not been proposed yet. Here, the first comparative study concerning the biology of sexual reproduction of R. illyricus is presented in the context of its decreasing distribution in natural habitats.

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“…Therefore, the hydrogen peroxide content under stress conditions can be used as a suitable indicator for selection of tolerance to salinity [64]. This kind of variation was also observed in Apiaceae plants, including Carum carvi L. [65] and Foeniculum vulgare Mill [66].…”

Section: Discussionmentioning

confidence: 99%

Phytochemical, Morphological, and Physiological Variation in Different Ajowan (Trachyspermum ammi L.) Populations as Affected by Salt Stress, Genotype × Year Interaction and Pollination System

Mirniyam

Rahimmalek

Arzani

et al. 2023

IJMS

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In the present research, 28 populations of ajowan (Trachyspermum ammi L.) were evaluated for agro-morphological traits and essential oil yield in two consecutive years. Then, selected ajowan populations from these two years were used for further morphophysiological and biochemical studies under different salinity levels (control, 60, 90, and 120 mM NaCl). The main components of the oil were thymol (32.7–54.29%), γ-terpinene (21.71–32.81%), and p-cymene (18.74–26.16%). Salt stress caused an increase in essential oil content in the Esfahfo and Qazvin populations. The highest total phenolic and flavonoid contents were found in the Arak population grown in 60 mM NaCl (183.83 mg TAE g−1 DW) and the Yazd population grown in 90 mM NaCl (5.94 mg QE g−1 DW). Moreover, the Yazd population exhibited the strongest antioxidant activity based on DPPH (IC50 = 1566 µg/mL) under 60 mM NaCl and the highest reducing power (0.69 nm) under 120 mM NaCl. The results revealed that low and moderate salt stress improves the phytochemicals of ajowan seeds, which are useful for pharmaceutical and food applications. In this research, some morphological traits, as well as essential oil yield, were evaluated in open pollinated versus self-pollinated plants. As a result, plant height, number of flowering branches, and crown diameter significantly decreased in some populations, while a significant increase was obtained for number of flowers per umbel and seed numbers per umbel. Finally, self-pollination of ajowan might provide new insights for further breeding programs to increase oil or thymol content in ajowan.

show abstract

Geographical variation in breaking the seed dormancy of Persian cumin (Carum carvi L.) ecotypes and their physiological responses to salinity and drought stresses

Cited by 14 publications

References 27 publications

Physiological, morphological and phytochemical responses of ajowan (Trachyspermum ammi L.) populations to salt stress

Physiological, morphological and phytochemical responses of ajowan (Trachyspermum ammi L.) populations to salt stress

The Effectiveness of the Sexual Reproduction in Selected Clonal and Nonclonal Species of the Genus Ranunculus

Phytochemical, Morphological, and Physiological Variation in Different Ajowan (Trachyspermum ammi L.) Populations as Affected by Salt Stress, Genotype × Year Interaction and Pollination System

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