Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.17660/ActaHortic.2018.1204.23 |
Fungi associated with Aizoaceae seed in the Succulent Karoo | |
Pieterse, Z.1; Aveling, T. A. S.1; Jacobs, A.2 | |
通讯作者 | Pieterse, Z. |
会议名称 | 7th International Symposium on Seed, Transplant and Stand Establishment of Horticultural Crops (SEST) |
会议日期 | SEP 11-15, 2016 |
会议地点 | Pretoria, SOUTH AFRICA |
英文摘要 | The Aizoaceae, commonly known as mesembs or "ice plants", is a plant family endemic to Namaqualand, an area inside the Succulent Karoo biodiversity hotspot in South Africa. The more than 1800 unique mesembs are in part characterised by their hygrochastic seed capsules dispersing their seed by jet action. Six capsule types: Mesembryanthemum-, Delosperma-, Drosanthemum-, Lampranthus-, Ruschia- and Leipoldtia-type are distinguished by differences in funicles, covering membranes and closing bodies. With the existence of microbial endemism, now widely recognised, research into community ecology in the Succulent Karoo is needed to enable proper conservation. Sadly the microbial life associated with Aizoaceae has received little attention, Alternaria, Colletotrichum and Fusarium, have however been isolated from the halophyte Sesuvium portulacastrum, one of the few species from Aizoaceae but not endemic to South Africa. Fungi are known to aid in germination, seedling establishment, growth, water relations and nutrition in the Cactaceae (a family closely related to Aizoaceae). We believe that fungi may play a role in the ability of Aizoaceae to thrive in Namaqualand due to their specialization in the form of thick-walled spores that remain viable and have the ability to grow slow even at extreme aridity. We have isolated species of Alternaria, Aspergillus, Bipolaris, Cladosporium, Fusarium and Talaromyces from seeds of common mesemb species from Namaqualand. This is the first report of fungi associating with the specialised propagative material of Aizoaceae. |
英文关键词 | arid biodiversity capsule hotspot hygrochastic mesembs seed-borne |
来源出版物 | VII INTERNATIONAL SYMPOSIUM ON SEED, TRANSPLANT AND STAND ESTABLISHMENT OF HORTICULTURAL CROPS - SEST2016 |
ISSN | 0567-7572 |
EISSN | 2406-6168 |
出版年 | 2018 |
卷号 | 1204 |
页码 | 177-185 |
EISBN | 978-94-62612-02-0 |
出版者 | INT SOC HORTICULTURAL SCIENCE |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | South Africa |
收录类别 | CPCI-S |
WOS记录号 | WOS:000465808400023 |
WOS关键词 | FOURWING SALTBUSH ; ENDOPHYTIC FUNGI ; CLASSIFICATION ; PERFORMANCE ; VEGETATION ; PLANTS |
WOS类目 | Horticulture |
WOS研究方向 | Agriculture |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/307708 |
作者单位 | 1.Univ Pretoria, Dept Plant & Soil Sci, Forestry & Agr Biotechnol Inst, Pretoria, South Africa; 2.Agr Res Council, Plant Protect Res Inst Biosystemat, Pretoria, South Africa |
推荐引用方式 GB/T 7714 | Pieterse, Z.,Aveling, T. A. S.,Jacobs, A.. Fungi associated with Aizoaceae seed in the Succulent Karoo[C]:INT SOC HORTICULTURAL SCIENCE,2018:177-185. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。