Evaluation of the Seed Germination of Two Protected Species: Lilium Pomponium L. And Lilium Martagon L.

Mascarello, C.; Sacco, Enrico; Carasso, Valentina; Zappa, Elena; Suffia, G.; Mariotti, Mauro; Ruffoni, B.

doi:10.17660/actahortic.2011.900.48

Cited by 4 publications

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“…In vitro germination One year old, seeds germinated (100%) three days after their final transfer to 15 °C or 20 °C; no fungal or bacterial growth was observed in any of them before or during their germination (Figure 2 a, 3). A similar effect of alternating medium and low temperatures on seed germination was reported in other Lilium species (Roh and Sim, 1996;Zhang et al, 2010;Mascarello et al, 2011;Ruffoni et al, 2011;Dhyani et al, 2014Dhyani et al, , 2019. T50 was completed in one day, while control seeds did not germinate.…”

Section: Resultssupporting

confidence: 78%

In vitro germination and micropropagation of the Balkan endemic Lilium chalcedonicum L., a potential ornamental lily

BERTSOUKLIS,

TRIGKA,

BAZANIS

et al. 2024

Not Bot Horti Agrobo

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Lilium chalcedonicum L., a bulbous perennial endemic to the Balkans, is recognized for its considerable ornamental potential. In this study, seeds were gathered from a wild population and subjected to surface disinfection. Subsequently, they were placed in Petri dishes containing a half-strength Murashige and Skoog (MS) nutrient substrate (MS/2), with temperature conditions at 15 °C and 20 °C, followed by cycles of 5 °C and return to 15 °C and 20 °C, respectively. The in vitro-cultivated seedlings were then transplanted for further growth in MS medium enriched with either 30 g L-1 or 60 g L-1 sucrose and 0.1 mg L-1 6-N-benzyladenine (BA). In the following stage, the resulting bulblets were separated and cultivated in MS/2, either without hormones (Hf) or with BA at concentrations of 0.2 mg L-1, 0.5 mg L-1, or 1 mg L-1. Moreover, the combined influence of 1-naphthaleneacetic acid (NAA) at a concentration of 1.0 mg L-1 and 0.2 mg L-1 BA was examined. This stage was succeeded by a further division of the bulblets, and the explants were cultured in Hf, MS/2 or with the inclusion of 0.5 mg L-1 BA or a combination of BA and NAA at ratios of 0.2/1 and 0.5/0.05 mg L-1; zeatin at 0.5 mg L-1 was also used, combined with 0.05 mg L-1 NAA. Notably, all seeds exhibited a 100% germination rate following alternating temperature regimes including periods of low temperature. During the initial cultivation phase, each seedling gave rise to two bulblets measuring 0.6 cm in diameter. Subsequent subcultures on Hf substrates and those containing BA without NAA, resulted in the highest number of bulblets (1.6-2.2 bulbs/plant) of the largest diameter (0.8-0.9 cm). Particularly noteworthy was the substantial increase in the average number of produced bulblets during the subsequent subcultures (multiplication stage), where 16.9 bulbs were formed in MS/2 medium containing 0.5 mg L-1 BA, with a median diameter of 1.7 cm.

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Section: Resultssupporting

confidence: 78%

In vitro germination and micropropagation of the Balkan endemic Lilium chalcedonicum L., a potential ornamental lily

BERTSOUKLIS,

TRIGKA,

BAZANIS

et al. 2024

Not Bot Horti Agrobo

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Reproductive biology of the threatened Lilium pomponium (Liliaceae), a species endemic to Maritime and Ligurian Alps

et al. 2018

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Pollination ecology and breeding system of Lilium pomponium L. were studied, and their effect on the reproductive outcome was assessed. This species has high conservation interest in Europe, because it is included in Annex V of the EU Habitat Directive and it is one out of the five Lilium species listed in IUCN Global Red List. To achieve our aim, the pollen vectors as well as the effect of bagging, emasculation and artificial pollination on reproductive output were studied. The most frequent visitor was the Lepidopteran Gonepteryx rhamnii. In general, reproductive outputs were close to zero for all the self-pollination treatments; however, geitonogamy and facilitated selfing seem slightly more efficient than autogamy, as also confirmed by self-compatibility and autofertility indices. Altogether, our results suggest a self-incompatible outcrossing breeding system, with a poor capacity for selfing. Nevertheless, climate change and anthropic threats might promote a shift toward self-fertilization, even maladaptive, favouring the few individuals able to produce selfed seeds.

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Tourism and recreation: a common threat to IUCN red-listed vascular plants in Europe

Ballantyne

Pickering

2013

Biodivers Conserv

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Tourism and recreation are large industries employing millions of people and contribute over 26 US$2.01 trillion to the global economy. Unfortunately they also have diverse and sometimes severe environmental impacts affecting many species, including those that are rare and threatened. To 28 assess the extent to which these industries threaten vascular plants, we reviewed data in the IUCN 29 Red List for 462 Critically Endangered, Endangered and Vulnerable European species. Tourism and 30 recreation were listed as threatening 42% (194 species) of these species from across 50 families, 31 mostly herbs (70%). They were listed as threatening plants in 9 of the 10 bioregions in Europe and in 32 25 of the 40 countries assessed. Popular tourism destinations such as the Canary Islands (41 species) 33 and mainland Spain (40 species) had the greatest diversity of species listed as threatened by tourism 34 and recreation. The most common of these threats were trampling (61 species), plant collection (59), 35 the maintenance/construction of tourist infrastructure (43) and habitat degradation due to the 36 urbanisation of tourist sites (13). Additional species assessments and more research on the impacts 37 of tourism and recreation may add to these values. It is clear that these industries pose an important 38 threatening process on plants in Europe based on the IUCN Red List data and hence deserve greater 39 recognition in terms of research, conservation and management. 40 Key Words 41 Endangered species, vegetation trampling, plant collecting, infrastructure impacts, Mediterranean 42 flora 43 (WTTC 2012). In the same year Europe experienced the most rapid growth in tourism globally, 49 receiving 504 million tourist arrivals; over half of all international tourist arrivals worldwide (UNWTO 50 2012). This growth is likely to continue with tourist arrivals predicted to reach 628 million by 2022 51 (WTTC 2012). Within Europe, tourism is highly concentrated in a few particular hotspots with the 52 majority of international arrivals in the Mediterranean (Amelung and Viner 2006). 53 The benefits of tourism and recreation come with costs including those from a range of negative 54 environmental impacts on water, soil, animals and plants (Liddle 1997; Myers et al. 2000; Van der 55 Duim and Caalders 2002; Butchart et al. 2010; Steven et al. 2011). Damage to plants includes 56 obvious effects of vegetation removal and changes to soils during the construction and maintenance 57 of tourist and recreational infrastructure such as coastal resorts, golf courses and ski-runs (Buckley 58 et al. 2000; López-Pujol et al. 2003; Peñas et al. 2011). However, even comparatively low-key nature-59 based activities such as hiking can trample plants reducing vegetation cover, biomass and height 60 (Liddle 1997; Cole 1995; Cole 2004; Pickering et al. 2011). Some visitors to natural areas harvest 61 flowers and other plant parts threatening charismatic species such as rare orchids (Ballantyne and 62 Pickering, 2012a). In addition, there are other less ...

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Evaluation of the Seed Germination of Two Protected Species: Lilium Pomponium L. And Lilium Martagon L.

Cited by 4 publications

References 0 publications

In vitro germination and micropropagation of the Balkan endemic Lilium chalcedonicum L., a potential ornamental lily

In vitro germination and micropropagation of the Balkan endemic Lilium chalcedonicum L., a potential ornamental lily

Reproductive biology of the threatened Lilium pomponium (Liliaceae), a species endemic to Maritime and Ligurian Alps

Tourism and recreation: a common threat to IUCN red-listed vascular plants in Europe

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