Arid
DOI10.1016/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
ISSN0140-1963
EISSN1095-922X
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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