The morphophysiological dormancy of <i>Ferula ovina</i> seeds is alleviated by low temperature and hydrogen peroxide

Fasih, Majid; Afshari, Reza

doi:10.1017/s0960258517000356

Cited by 8 publications

(6 citation statements)

References 48 publications

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“…Because cold stratification was the only requirement for embryo growth, F. gummosa seeds have a complex level of MPD. This result is in accordance with the dormancy-breaking requirements of other Apiaceae, for example, Thaspium pinnatifidum (Baskin, Chester, & Baskin, 1992), Osmorhiza aristata (Walck, Hidayati, & Okagami, 2002), and Ferula ovina (Fasih & Tavakkol-Afshari, 2018).…”

Section: Discussionsupporting

confidence: 87%

“…Turgenia latifolia is the only species of Apiaceae reported to have intermediate complex MPD (Nurulla, Baskin, Lu, Tan, & Baskin, ). Deep complex MPD occurs in several species, including Thaspium pinnatifidum (Baskin, Chester, & Baskin, ), Prangos pabularia and Prangos uloptera (Razavi, ), Dorema ammoniacum (Irvani, Solouki, Omidi, Saidi, & Zare, ) and Ferula ovina (Fasih & Tavakkol‐Afshari, ).…”

Section: Introductionmentioning

confidence: 99%

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Deep and intermediate complex morphophysiological dormancy in seeds of Ferula gummosa (Apiaceae)

Zardari

Ghaderi–Far

Sadeghipour

et al. 2019

Plant Species Biology

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We tested the hypothesis that seeds of the monocarpic perennial Ferula gummosa from the Mediterranean area and central Asia have deep complex morphophysiological dormancy. We determined the water permeability of seeds, embryo morphology, temperature requirements for embryo growth and seed germination and responses of seeds to warm and cold stratification and to different concentrations of GA3. The embryo has differentiated organs, but it is small (underdeveloped) and must grow inside the seed, reaching a critical embryo length, seed length ratio of 0.65–0.7, before the seed can germinate. Seeds required 9 weeks of cold stratification at <10°C for embryo growth, dormancy break and germination to occur. Thus, seeds have morphophysiological dormancy (MPD). Furthermore, GA3 improved the germination percentage and rate at 5°C and promoted 20 and 5% germination of seeds incubated at 15 and 20°C, respectively. Thus, about 20% of the seeds had intermediate complex MPD. For the other seeds in the seed lot, cold stratification (5°C) was the only requirement for dormancy break and germination and GA3 could not substitute for cold stratification. Thus, about 80% of the seeds had deep complex MPD.

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Deep and intermediate complex morphophysiological dormancy in seeds of Ferula gummosa (Apiaceae)

Zardari

Ghaderi–Far

Sadeghipour

et al. 2019

Plant Species Biology

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“…Species of the genus Ferula have gained notoriety for their common inability to reliably germinate under environmental conditions differing from those of their native habitats, due primarily to the abundant prevalence of morphophysiological seed dormancy and the resultant cold-stratification requirements within the genus (Fasih and Afshari, 2018). While there are exceptions to this (e.g., Ferula tingitana), evidence from our ancient sources strongly suggests that silphium was not among them.…”

Section: Germination Requirementsmentioning

confidence: 92%

“…The seed germination requirements of F. drudeana and F. asafoetida are well-recorded in the modern scientific literature; both require an extended period of cold stratification to break dormancy (Zarekarizi et al, 2011;Miski, 2021;Shanjani and Hoseini, 2021). The seeds of Ferula gummosa [the species from which galbanum, an ancient medical resin similar to laser, was derived (Goodyer, 1655)] and Ferula ovina also must endure prolonged exposure (4-8 weeks) to temperatures ≤ 5 • C under moist conditions to reliably germinate (Fasih and Afshari, 2018;Shanjani and Hoseini, 2021).…”

Section: Germination Requirementsmentioning

confidence: 99%

Reassessing the Role of Anthropogenic Climate Change in the Extinction of Silphium

Pollaro¹,

Robertson²

2022

Front. Conserv. Sci.

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The famed ancient herb, known to the Romans as silphium (Greek silphion), is widely regarded as the first recorded instance of human-induced species extinction. Modern scholars have largely credited direct exploitation (e.g., over-harvesting; over-grazing) as the primary cause of silphium's extinction, due to an overwhelming demand for the plant in ancient times. Recent research has revealed strict cold-stratification requirements for the germination of silphium's closest living relatives, revealing the likelihood that silphium shared these same germination requirements. Documented environmental changes in ancient Cyrenaica (e.g., widespread deforestation; cropland expansion) likely resulted in accelerated rates of desertification throughout the region as well as the direct disturbance of silphium's habitat, effectively eliminating the necessary conditions for silphium's successful germination and growth within its native range. Contrary to previous conclusions, this evidence suggests that anthropogenic environmental change was instead the dominant factor in silphium's extinction, marking silphium as the first recorded instance of human-induced climate-based extinction.

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“…This results in increasing intercepted radiation and plant growth rate and consequently maximizing plant yield [18,19]. Temperature drives local adaptation [20,21] and phenotypic plasticity [22][23][24] in germination traits, as well as the physiological processes of dormancy loss [15,25] and germination elicitation [26]. Local populations or landraces have developed over time through adaptation to their natural and maternal growing environment and originated by adaptive responses to local habitats [27].…”

Section: Introductionmentioning

confidence: 99%

Differential Seed Germination Responses of Tomato Landraces to Temperature under Climate Change Scenarios

Sousaraei

Torabi

Soltani

et al. 2022

Seeds

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This study aims to quantify the seed germination response of six tomato landraces to temperature; predict future climate changes relative to the baseline period (1980–2009) for studied locations in the courses of near-term (2010–2039) and mid-term (2040–2069) under two representative concentration pathways (RCP 4.5 and 8.5); assess the impact of future climate change on the final germination percentage (FGP) and time to reach 50% germination (D50) in the studied landraces. The results show that FGP is zero at 10 °C, reaches the highest value at 15–35 °C, and ceases at 36–40 °C for all landraces. The results also demonstrate that the temperature increment is 0.8–1.3 °C and 1.5–2.7 °C in the near- and mid-term, respectively, under RCP 4.5; further, this increment is 0.9–1.9 °C for the near-term and 2.3–3.4 °C for the mid-term under RCP 8.5. It estimates that the D50 takes 2.5 to 3.8 days among the locations in the baseline course. In the near term, the D50 would be 2.2 to 3.4 days under RCP 4.5 and 2.1 to 3.3 days under RCP 8.5. For the mid-term, the D50 would be projected between 1.9 and 2.9 days under RCP 4.5 and 1.8 to 2.7 days under RCP 8.5. The FGP increases up to 19.5% for Gorgan and 21.3% for Varamin under climatic scenarios relative to baseline, and it will not change in the future climate for other landraces. In conclusion, global warming can result in rapid, uniform, and complete germination in different tomato landraces.

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The morphophysiological dormancy of Ferula ovina seeds is alleviated by low temperature and hydrogen peroxide

Cited by 8 publications

References 48 publications

Deep and intermediate complex morphophysiological dormancy in seeds of Ferula gummosa (Apiaceae)

Deep and intermediate complex morphophysiological dormancy in seeds of Ferula gummosa (Apiaceae)

Reassessing the Role of Anthropogenic Climate Change in the Extinction of Silphium

Differential Seed Germination Responses of Tomato Landraces to Temperature under Climate Change Scenarios

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