Adaptative Leaf Morphology of Eurya japonica Thunb. (Ternstroemiaceae) in Serpentine Areas

Shiba, Masayuki; Tate, Tomoki; Fukuda, Tatsuya

doi:10.5539/jps.v11n1p10

Cited by 5 publications

(9 citation statements)

References 35 publications

(49 reference statements)

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“…Moreover, our anatomical results showed that no single parameter, such as the adaxial and abaxial epidermal cells, palisade tissue, or spongy tissue contributed to the increased leaf thickness of serpentine L. japonicum; however, all of them were slightly higher than plants of the inland populations. These anatomical results were also similar to those of E. japonica (Shiba et al, 2022), where the modification in leaf thickness, when woody species adapted from inland to serpentine areas, was related to the change in the height of each cell.…”

Section: Discussionsupporting

confidence: 84%

“…serpentine ones (Hayakawa et al, 2012;Ohga et al, 2012;Kumekawa et al, 2013;Shiba et al, 2022). As mentioned above, the speciation of serpentine-adapted inland species seems to be associated with leaf morphology and the stomatal density and/or size.…”

Section: Discussionmentioning

confidence: 85%

“…triphylla var. japonica, and the serpentine E. japonica reported adaptation by the acquisition of thicker leaves (Hayakawa et al, 2012;Ohga et al, 2012;Shiba et al, 2022). Similarly, serpentine L. japonicum also tended to have thicker leaves.…”

Section: Discussionmentioning

confidence: 91%

“…(Ternstroemiaceae) in serpentines had smaller leaves by decreasing the number of cells, and their thicker leaves contributed to the increased height of epidermal cells, palisade tissue, and spongy tissue. In addition, the stomatal size of serpentine E. japonica was significantly smaller than that of inland areas (Shiba et al, 2022). These studies suggested that the environmental stresses to serpentine soils create severe limitations in plant growth, and some species had altered morphological and anatomical characteristics to adapt to them.…”

Section: Introductionmentioning

confidence: 93%

“…Additionally, this ecotype had a reduced number of stomata due to stenophyllization. Recently, Shiba et al (2022) reported that the smaller leaves of Eurya japonica Thunb. (Ternstroemiaceae) in serpentines had smaller leaves by decreasing the number of cells, and their thicker leaves contributed to the increased height of epidermal cells, palisade tissue, and spongy tissue.…”

Section: Introductionmentioning

confidence: 99%

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Serpentine Adaptation of Ligustrum japonicum Thunb. (Oleaceae) Based on Morphological and Anatomical Approaches

Shiba¹,

Tate²,

Fukuda³

2022

IJB

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Serpentine soils consist of broadly skewed elemental profiles, including abundant toxic metals and low nutrient content in drought-prone, patchily distributed substrates; therefore, they are one of the most challenging settings for plant life. In this study, a comparative study was conducted using serpentine and inland populations of Ligustrum japonicum Thunb. (Oleaceae) to determine morphological and anatomical differences between the same species growing in the serpentine and inland areas. Longitudinal leaf sections indicated that serpentine populations had slightly thicker leaves than inland populations, contributing to the increased heights of adaxial and abaxial epidermal cells and palisade and spongy tissues. Moreover, the serpentine population had smaller stomata than the inland populations. These results suggest that the strong selective pressure under serpentine soil conditions could force leaves to restore water and avoid excessive transpiration.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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Serpentine Adaptation of Ligustrum japonicum Thunb. (Oleaceae) Based on Morphological and Anatomical Approaches

Shiba¹,

Tate²,

Fukuda³

2022

IJB

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Endemic species analysis: Foliar epidermal anatomical characters of Aster glehnii F. Schmidt (Asteraceae)

Zaman,

Lee,

Park

2024

Microscopy Res & Technique

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The classification and identification of Aster glehnii F. Schmidt are determined from its foliar epidermal anatomical features. Scanning electronic microscopy has been used to determine the foliar epidermal anatomical characteristics of the species in detail. This study compared the qualitative and quantitative characteristics of the leaf epidermis of A. glehnii for taxonomic identification to be used as a reference for future studies on the species. A. glehnii has smooth, thin cuticles, depressed anomocytic stomata dispersed randomly throughout the leaf surface, polygonal epidermal cells with straight to slightly curved anticlinal walls, and no trichomes. There are obvious veins containing thick‐walled bundle sheath cells. The stomatal density is between 100 and 150 stomata per millimeter. The vein density ranges from five to 10 veins per millimeter, and the epidermal cells are 10 to 20 μm long and 5 to 10 μm in width. Understanding the connections between the different A. glehnii species and categorizing and identifying them depend heavily on these foliar epidermal structural features. Taxonomy and conservation are closely intertwined because the former serves as the basis for comprehending and safeguarding biodiversity.Research Highlights Optical microscopy of the A. glehnii leaf epidermis for taxonomic identification SEM was used to identify and authenticate endemic species Microscopic identification of endemic species can assist in the conservation

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Impact on the scape of Farfugium japonicum var. japonicum (Asteraceae) under strong wind conditions based on morphological and mechanical analyses

Shiba,

Arihara,

Harada

et al. 2024

Front. Plant Sci.

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Adaptation of Farfugium japonicum (L.) Kitam. var. japonicum (Asteraceae) to the strong wind environment of coastal areas has been shown to reduce lamina size and shorten petioles; however, their effects on other traits of this species remain unknown. Our morphological analyses showed that shortening of the scape of this species is correlated with shortening of the petiole in coastal areas. The results suggested that when the height of the scapes became higher than that of the petioles, the wind stress on the scapes became stronger and their growth was suppressed. Therefore, the populations in coastal areas with strong winds had significantly shorter scapes than inland populations, and the height of petioles and scapes in the coastal populations were correlated. Further mechanical analysis by three-point bending tests revealed that the scapes had higher strength than the petioles. This species is evergreen and can produce new leaves regardless of the season, even if it loses its leaves by strong winds; however, because scapes only develop above ground for a limited period of the year, the loss of the scapes by strong winds has a significant impact on reproduction in that year. Therefore, even though the scapes were stronger than the petiole, shortening the scapes plays an important role in reducing strong wind stress in coastal areas.

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Adaptative Leaf Morphology of Eurya japonica Thunb. (Ternstroemiaceae) in Serpentine Areas

Cited by 5 publications

References 35 publications

Serpentine Adaptation of Ligustrum japonicum Thunb. (Oleaceae) Based on Morphological and Anatomical Approaches

Serpentine Adaptation of Ligustrum japonicum Thunb. (Oleaceae) Based on Morphological and Anatomical Approaches

Endemic species analysis: Foliar epidermal anatomical characters of Aster glehnii F. Schmidt (Asteraceae)

Impact on the scape of Farfugium japonicum var. japonicum (Asteraceae) under strong wind conditions based on morphological and mechanical analyses

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