Leaf Adaptation of Eurya japonica Thunb. (Pentaphylacaceae) in Coastal Area

Shiba, Masayuki; Tate, Tomoki; Fukuda, Tatsuya

doi:10.5539/jps.v11n1p31

Cited by 5 publications

(4 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The biodiversity of coastal environments is valuable at the global scale, as these environments have high endemism rates of plant species that occur as a result of the unique environments, with strong persistence of shore winds carrying sand and salt spray that dries leaves and soil (Hassani et al, 2021;Nakajima & Yoshizaki, 2018). Plant species in coastal areas have traits adapted to coastal environments (Kumekawa et al, 2013;Ohga et al, 2013;Shiba et al, 2022;Sunami et al, 2013;Takizawa et al, 2022;Tunala et al, 2012); therefore, the conservation and sustainable use of coastal forests require close attention (Cori, 1999;Schlacher et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Seed Germination and Seedling Emergence of Lysimachia mauritiana Lam. (Primulaceae)

Marui¹,

Takizawa²,

Shiba³

et al. 2023

IJB

View full text Add to dashboard Cite

Lysimachia mauritiana Lam. (Primulaceae), a biennial maritime plant, is widely distributed in East Asia, the Philippines, Micronesia, Polynesia, and the Indian Ocean. Because of this species’ wide distribution in Japan, we hypothesized that it could germinate and grow even in the bare coastal areas damaged by the tsunami caused by the Great East Japan Earthquake. Thus, we aimed to evaluate the seed germination of L. mauritiana under different sowing depths, temperatures, and salinity soil conditions. The highest germination rate was obtained by sowing L. mauritiana seeds near the soil surface, with germination rate decreasing as the seeding depth increased. Lysimachia mauritiana germinated even at relatively low temperatures. Moreover, we found that L. mauritiana seeds could germinate in less than 1% salt water and in salt-accumulated soil, using soil soaked in 5% or 10% salt water. Our results therefore suggest that L. mauritiana seeds could germinate by sowing on the bare soil surfaces damaged by the tsunami.

show abstract

Section: Introductionmentioning

confidence: 99%

Seed Germination and Seedling Emergence of Lysimachia mauritiana Lam. (Primulaceae)

Marui¹,

Takizawa²,

Shiba³

et al. 2023

IJB

View full text Add to dashboard Cite

show abstract

“…japonica (Regel) H. Hara (Campanulaceae) has evolved relatively thick leaves via a heterochronic process to store water. Shiba et al (2022b) indicated that the coastal population of Eurya japonica Thunb. (Ternstroemiaceae) had smaller stomata and larger epidermal cells on the adaxial and abaxial sides to reduce transpiration during gas exchange and to retain water in the leaves, respectively.…”

Section: Introductionmentioning

confidence: 99%

Stomatal Study of Introduced Species, Ligustrum lucidum Aiton (Oleaceae), in Coastal Areas of Japan

Takizawa¹,

Shiba²,

Yoshizaki³

et al. 2022

JPS

View full text Add to dashboard Cite

Alien, introduced, and non-native species expand their distribution through the development of various transportation networks. In Japan, Ligustrum lucidum Aiton (Oleaceae) was introduced in the mid-1800s for use as roadside trees, but has escaped from the planting area and spread everywhere. This species also invades coastal areas and has adapted to develop its characteristic features under various stress conditions. To clarify the adaptive features of L. lucidum in coastal areas, we conducted morphological and anatomical analyses. We found that the stomatal size of L. lucidum was smaller in the coastal populations than in inland populations, which is similar to the coastal adaptation pattern of L. japonicum Thunb., a closely related native species. Our results suggest that strong selective pressure on coastal area conditions could force their leaves to avoid excessive transpiration, and such an adaptation pattern of L. lucidum could expand its distribution to various coastal areas.

show abstract

“…japonica (Regel) H. Hara (Campanulaceae) had evolved relatively thick leaves via a heterochronic process to store water. Shiba et al (2022) pointed out that coastal populations of Eurya japonica Thunb. (Ternstroemiaceae) have small stomata and larger adaxial and abaxial epidermal cells to reduce transpiration during gas exchange and retain moisture within the leaves.…”

mentioning

confidence: 99%

“…Wind is a particularly complex environmental factor that has several effects on plants (Ennos, 1997). Wind speeds are stronger in coastal areas than inland areas, and wind-induced stress plays an important role in the speciation of plants adapted to coastal areas (Shiba et al, 2022;Takizawa et al, 2022;Takizawa et al, 2023). However, limited studies have been conducted on plant adaptation to wind-induced mechanical stress in coastal areas.…”

mentioning

confidence: 99%

Effect of strong wind on laminas and petioles of Farfugium japonicum (L.) Kitam. var. japonicum (Asteraceae)

2023

Self Cite

View full text Add to dashboard Cite

Farfugium japonicum (L.) Kitam. var. japonicum grows mainly in the coastal areas of Japan. Meteorological recording data from natural habitats were used to investigate the factors associated with the laminas and petioles of radical leaves of F. japonicum var. japonicum to avoid or resist higher wind stress. Our morphological and mechanical results indicated that petiole length and petiole cross-sectional area had a weak correlation with wind speed and breaking strength, and the petiole second area moment of inertia did not differ significantly among populations. However, both lamina area and petiole length per petiole cross-sectional area decreased with increasing wind speed, indicating that F. japonicum var. japonicum resisted or avoided an increase in wind speed outdoors by reducing the lamina area and petiole length per petiole cross-sectional area without qualitative changes in their petioles. The results of this study indicated that densely distributed recording stations of the Automated Meteorological Data Acquisition System (AMeDAS) by the Japan Meteorological Agency can be used for environmental adaptation studies of plants in the field using nearby plant populations.

show abstract

Leaf Adaptation of Eurya japonica Thunb. (Pentaphylacaceae) in Coastal Area

Cited by 5 publications

References 50 publications

Seed Germination and Seedling Emergence of Lysimachia mauritiana Lam. (Primulaceae)

Seed Germination and Seedling Emergence of Lysimachia mauritiana Lam. (Primulaceae)

Stomatal Study of Introduced Species, Ligustrum lucidum Aiton (Oleaceae), in Coastal Areas of Japan

Effect of strong wind on laminas and petioles of Farfugium japonicum (L.) Kitam. var. japonicum (Asteraceae)

Contact Info

Product

Resources

About