인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
This study aimed to investigate the reproductive morphological characteristics of the genus Pentactina, which comprises two species, in order to identify previously unstudied characteristics and elucidate their systematic implications within the tribe Spiraeeae. Floral elements and ovule characters were studied using microtome sections, and seed surface patterns were analyzed via scanning electron microscopy. The results indicated that P. rupicola and P. schlothauerae shared identical reproductive morphological characteristics, including the dicotyledonous type of anther wall formation, tetrasporangiate anthers, a glandular tapetum, simultaneous cytokinesis, two-celled mature pollen at shedding time, anatropous and unitegmic ovules, two ovules per carpel, the development of the nucellar cap, a thin endosperm, a rectangular-reticulate seed surface sculpture pattern, and an endotestal type of seed coat. In conclusion, no distinct reproductive morphological differences were observed between the two species of Pentactina. Although Pentactina and Spiraea exhibit similar external morphological characters, they can be taxonomically differentiated based on reproductive morphological characteristics such as the number of ovules per carpel and the seed surface sculpturing pattern. These two reproductive morphological characteristics provide strong evidence supporting the transfer of Spiraea schlothauerae to the genus Pentactina. Therefore, the results of this study do not support Hutchinson’s and Kalkman’s taxonomic treatments as a synonym of Spiraea.
#apocarpous carpel
#critically endangered species
#Pentactina rupicola
#Pentactina schlothauerae
#Spiraeeae
#unitegmic ovule
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목차
- ABSTRACT
- INTRODUCTION
- MATERIALS AND METHODS
- RESULTS
- DISCUSSION
- LITERATURE CITED