Botanica Pacifica. A journal of plant science and conservation 2021. 10(2):29-34
Article first published online: 27 OCT 2021 | DOI: 10.17581/bp.2021.10206 | EDN: FRJOYE
Inflorescence architecture, floral part movements and pollinator attraction by androecia – contrivance for successful mating in Eremurus himalaicus Baker
Aijaz Hassan Ganie1, Bilal Ahmad Tali2, Zafar A. Reshi3 & Irshad A. Nawchoo3
1 Department of Botany, University of Kashmir, Kargil campus, J & K, India
2 SAM Degree College Budgam, J & K, India
3 Department of Botany, University of Kashmir, Srinagar, J & K, India
Present study has been carried out to understand the mating strategies of Eremurus himalaicus Baker., important medicinal endemic plant, for its sustainable utilization. The inflorescence architecture, large numbers of attractive flowers, presence of sterile flowers which give specific arrangement to inflorescence, the coloured, attractive androecia and nectaries attract the pollinators. Protoandry, moderate to high pollen ovule ratio, unique movement of stigma away from dehiscing anthers, movement of pedicels and breeding experiment revealed that the species is primarily geitonogamous but xanogamy though rare is also operative. The exine sculpture and pollen size depicts that both anemophily and entomophily is operative in the species. Present study may provide important information for the conservation of this endemic medicinal plant species which has been categorized as threatened by various authors.
Гани А.Х., Тали Б.А., Реши З.А., Начу И.А. Архитектура соцветий, подвижность частей цветка и привлечение опылителей мужскими цветками – приспособление для успешного опыления Eremurus himalaicus Baker. Исследование было проведено для понимания стратегий опыления Eremurus himalaicus в целях неистощительного использования его популяций. Архитектура соцветия, большое число эффектных цветков, наличие стерильных цветков, которые придают соцветию особую композицию, андроцеи и нектарники привлекают опылителей. Протандрия, умеренное и высокое соотношение яйцеклеток и пыльцы, уникальное удаление стигмы от раскрывающихся пыльников, движение цветоножек и эксперимент по размножению показали, что этот вид является в основном гейтогамным, хотя в редких случаях для него свойственна ксеногамия. Скульптура экзины и размер пыльцы показывают, что виду свойственны анемофилия и энтомофилия. Настоящее исследование может оказаться важным для сохранения этого эндемичного вида лекарственных растений, который был отнесен разными авторами к находящимся под угрозой исчезновения.
Keywords: endemic, medicinal importance, over-exploitation, mating system, conservation, эндемик, лекарственное значение, чрезмерная эксплуатация, система опыления, сохранение
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