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All Journal Biodiversitas Journal of Biological Diversity
HIROSUKE OKU
Molecular Biotechnology Group, Tropical Biosphere Research Center, University of the Ryukyus. 1 Senbaru, Nishihara Okinawa 903-0213, Japan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Response of polyisoprenoid concentration and profile in three groups of mangrove seedlings of coping with long-term salinity MOHAMMAD BASYUNI; HIROSHI SAGAMI; SHIGEYUKI BABA; HIROSUKE OKU
Biodiversitas Journal of Biological Diversity Vol. 20 No. 1 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200137

Abstract

Basyuni M, Sagami H, Baba S, Oku H. 2019. Response of polyisoprenoid concentration and profile in three groups of mangrove seedlings of coping with long-term salinity. Biodiversitas 20: 320-326. The response of polyisoprenoid (polyprenol and dolichol) concentration and distribution was investigated with three groups mechanism of coping with salinity: a secreting mangrove species of Avicennia officinalis, a non-secreting species (excluder) of Bruguiera cylindrica, and a salt-accumulating species of Xylocarpus granatum. The seedlings of three mangroves were grown under 0 and 3% salinity concentration for five months. Polyisoprenoids in the lipid extracts were examined by two-dimensional thin layer chromatography (2D-TLC). The pattern of the polyprenols and dolichols in the leaves and roots were categorized as two types (I and II). In category I, dolichols dominated over polyprenols, however, in category II, the existence of both polyprenols and dolichols was found. In the leaves, type-I was observed in A. officinalis under 0 and 3% salinity. On the other hand, type-II was found in B. cylindrica and X. granatum under 0 and 3% salt concentrations. A similar pattern was found in the roots, A. officinalis (type-I), and that in B. cylindrica and X. granatum was type-II. This finding depicted that the seedlings of A. officinalis, B. cylindrica, and X. granatum leaves and roots imply no change in the distribution type: the categories were distributed as type I or II under 0% salt concentrations, as well as type-I or II under 3% salt concentrations. This study implied that polyisoprenoids may play a protective function against salinity in the mangrove leaves and roots of three groups scheme (secreting, excluding, and accumulating) of salt management.
Salinity and subsequent freshwater influences on the growth, biomass, and polyisoprenoids distribution of Rhizophora apiculata seedlings MOHAMMAD BASYUNI; MASRIDA WASILAH; POPPY ANJELISA ZAITUN HASIBUAN; NURDIN SULISTIYONO; SUMARDI SUMARDI; YUNTHA BIMANTARA; RAHMAH HAYATI; HIROSHI SAGAMI; HIROSUKE OKU
Biodiversitas Journal of Biological Diversity Vol. 20 No. 1 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200146

Abstract

Abstract. Basyuni M, Wasilah M, Hasibuan PAZ, Sulistiyono N, Sumardi, Bimantara Y, Hayati R, Sagami H, Oku H. 2019. Salinity and subsequent freshwater influences on the growth, biomass, and polyisoprenoids distribution of Rhizophora apiculata seedlings. Biodiversitas 20: 388-395. This study described the growth, biomass, and polyisoprenoids (polyprenol and dolichol) distribution of Rhizophora apiculata seedlings under saline and subsequent fresh water treatment. Propagules of R. apiculata were collected from Pulau Sembilan, Langkat, North Sumatra and were grown in 0.0%, 0.5%, 1.5%, 2.0%, and 3.0% salt concentrations for three months. After three months planted in a glass house, R. apiculata seedlings were divided into two groups and grown for another three months. The first group was continuously grown under the saline condition and the second was moved to fresh water to recover from the saline condition. The leaves, stems, and roots of R. apiculata seedlings were harvested after six months of cultivation. Polyisoprenoids alcohol was isolated from the leaves and roots of R. apiculata seedlings and analyzed using two-dimensional thin layer chromatography. Growth parameters measured were height and diameter of R. apiculata seedlings. The height of R. apiculata seedlings was significantly affected by salinity levels of 2.0%, 3.0% and 3.0% ? 0.0%. The arrow (?) denoted fresh water recovery treatment. The best height and diameter of R. apiculata seedlings were observed in 0.5% salt concentration. Salinity treatment and re-adaptation into freshwater significantly influenced the leaves area (2.0%, 3.0% and 3.0% ? 0.0%), fresh weight of stem (3.0% and 3% ? 0.0%) and stem dry weight (3% ? 0.0%). Distribution of polyprenols and dolichols in the leaves and roots of R. apiculata seedlings were categorized as type I, where dolichol was dominant over polyprenol. Under salinity and subsequent fresh water recovery treatments (0.0%, 1.5%, 1.5% ? 0.0%, 3.0%, and 3.0% ? 0.0%), the carbon chain length of dolichol in the leaves and in the roots was, respectively, C85-C100, C85-C100, C85-C105, C85-C100, C85-C95 and C85-C105, C85-C105, C85-C105, C85-C110, C85-C100. These data suggested the significant role of polyisoprenoids in mangrove plants to withstand salt stress and or water stress.
Co-Authors HIROSHI SAGAMI MASRIDA WASILAH MOHAMMAD BASYUNI MOHAMMAD BASYUNI NURDIN SULISTIYONO POPPY ANJELISA ZAITUN HASIBUAN RAHMAH HAYATI SHIGEYUKI BABA SUMARDI SUMARDI YUNTHA BIMANTARA