Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2016.01.001 |
Morphology and mechanical properties of junctions: Implications on the success of clonal spread of cacti | |
Guillermo Almiron, Martin1; Martinez Carretero, Eduardo Enrique2; Daniela Navas, Maria3; Victoria Pantano, Maria3 | |
通讯作者 | Guillermo Almiron, Martin |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2016 |
卷号 | 128页码:8-11 |
英文摘要 | Opuntioid cacti reproduce asexually through separation and subsequent rooting of stems (cladodes in platyopuntias; joints in cylindropuntias). Consequently, the force that keeps them together must be overcome. This work assesses the morphometry and disjunction force of joints in Tephrocactus aoracanthus. Morphologically, during their maturation, joints change in shape from oval to spherical, resulting in the youngest being significantly shorter and lighter than the oldest ones. Both critical bending moment and section modulus of junctions resulted in weaker connections on younger joints with respect to older ones, determining that young joints can be separated with less force applied. According to that, their deflection angle is smaller compared to older joints. In relation to other species, the junction of T. aoracanthus is more fragile in both the youngest and oldest joints. This mechanism could favor the spread of T. aoracanthus and its colonization of sites unfavorable for the establishment of its seedlings. (c) 2016 Elsevier Ltd. All rights reserved. |
英文关键词 | Tephrocactus aoracanthus Cactaceae Vegetative dispersion strategy |
类型 | Article |
语种 | 英语 |
国家 | Argentina |
收录类别 | SCI-E |
WOS记录号 | WOS:000376806800002 |
WOS关键词 | AORACANTHUS LEM. LEM. ; SPATIAL-DISTRIBUTION ; CLADODE JUNCTIONS ; MONTE DESERT ; CACTACEAE ; ARGENTINA ; BIOMECHANICS ; SHRUBS |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/194113 |
作者单位 | 1.Univ Nacl San Juan, Gabinete Estratig, CONICET CIGEOBIO Inst Geol, San Juan, Argentina; 2.Univ Nacl San Juan, CONICET Mendoza Inst Argentino Invest Zonas Arida, San Juan, Argentina; 3.Univ Nacl San Juan, San Juan, Argentina |
推荐引用方式 GB/T 7714 | Guillermo Almiron, Martin,Martinez Carretero, Eduardo Enrique,Daniela Navas, Maria,et al. Morphology and mechanical properties of junctions: Implications on the success of clonal spread of cacti[J],2016,128:8-11. |
APA | Guillermo Almiron, Martin,Martinez Carretero, Eduardo Enrique,Daniela Navas, Maria,&Victoria Pantano, Maria.(2016).Morphology and mechanical properties of junctions: Implications on the success of clonal spread of cacti.JOURNAL OF ARID ENVIRONMENTS,128,8-11. |
MLA | Guillermo Almiron, Martin,et al."Morphology and mechanical properties of junctions: Implications on the success of clonal spread of cacti".JOURNAL OF ARID ENVIRONMENTS 128(2016):8-11. |
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