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Naing Aung Htay,Soe May Thu,Win Nay Myo,강현희,정미영,김창길 한국식물생명공학회 2022 Plant biotechnology reports Vol.16 No.6
We investigated whether ethylene is involved in the stem-bending mechanism of the two diferent gerberas [long-lived cultivar ‘Mary Queen’ and short-lived cultivar ‘Harmony’] by pretreating the stems with an ethylene-releasing compound (Ethephon), an ethylene-action inhibitor [silver thiosulfate (STS)], or Ethephon in combination with STS (Ethephon+STS), using distilled water as the control. In the cv. ‘Mary Queen,’ the control stems did not show stem bending, while the treatment groups showed bending at 6 and 9 days after treatment (DAT). In the cv. ‘Harmony,’ the bending rate observed in the Ethephon-treated stems was lower than the other treatments at 9 DAT. However, a lower bending rate in the Ethephon group relative to the other treatments is unlikely to be associated with ethylene action, because the bending rate observed in the Ethephon+STS group was signifcantly higher than the STS group. In addition, the bending rates of both cultivars were not associated with lignin contents or the expression of lignin biosynthesis genes in the stems. As it is complicated to conclude the role of Ethephon in stem bending of the gerberas, these results suggest that the use of Ethephon to delay stem bending in cut gerberas is not warranted
Pyiet Phyo Kyaw,Hein Htet Lwin,Soe Win Naing,Kyaw Swar Oo,Thu Ya Aung,Aung Nanda,Lin Aung 대한체질인류학회 2020 해부·생물인류학 (Anat Biol Anthropol) Vol.33 No.2
Myin Ma Hti is the local name meant that the mountain horse never touches. In Myanmer, this name is very popular as the Buddhist religious place. Most pilgrims usually visit to the area of Myin Ma Hti. In 1997, a new limestone cave was discovered during the field trip of local geological team and the first explorer gave the name for the cave as Myin Ma Hti Cave No. 2. In their 1997 report, the archaeo-faunal remains and stone implements were recorded as teeth and vertebrate bones of bull, ox, deer and polished stone rings and implements that could be estimated as the Neolithic context dated as 6,000-4,000 BP. In 2019, the environmental assessment team accidentally arrived into the cave and they found some significant remains of stone tools mingled with a pile of bone fragments after the local people dug the floor of cave to build the religious stupa. Then, rescue archaeological works had been initiated to take recording and making catalogue of bone fragments and stone pieces. Most of the findings are the bone fragments and wasters of stone rings. The special findings are potential bone tools with the cut and scrape marks of edging and sharpening. The anthropogenic feature could be examined with the ash layer 3-meter depth approximately. In this report, the significance of archaeofaunal evidences and stone implements accidentally found in MMH2 will be described as the preliminary survey of prehistoric cave in Aung Pan Township, Shan State, Myanmar.