Abstract：
:Herbivore damage is known to cause the premature loss of mature leaves. However, the effects of herbivory on abscission during the early stages of leaf development remain unexplored, even though herbivores frequently prefer unlignified, immature leaves. In a field experiment, we removed 50% of the tissue from leaves at various stages of development on seedlings of Shorea hopeifolia (Dipterocarpaceae), a dominant rain forest tree in Indonesian Borneo. Four weeks following simulated herbivory, >88% of unlignified expanding leaves had been abscised, compared to only 20% of fully expanded, unlignified leaves and 0% of recently lignified, mature leaves. In a separate experiment over 9 wk, simulated herbivory did not increase abscission rates of mature leaves, even when 75% of leaf tissue was removed. Because most (58%) of S. hopeifolia seedlings under natural conditions had lost 1% or less of the tissue from their mature leaves, herbivore damage probably has little effect on the abscission of mature leaves. In contrast, the tendency for damaged expanding leaves to abscise may explain why 49% of S. hopeifolia seedlings had already lost their youngest leaf. If similar patterns occur in other species, herbivore attacks on developing leaves may contribute substantially to both leaf loss and the cumulative impact of herbivory on the growth and survival of whole plants.
journal_name
Am J Botjournal_title
American journal of botanyauthors
Blundell AG,Peart DRsubject
Has Abstractpub_date
2000-11-01 00:00:00pages
1693-8issue
11eissn
0002-9122issn
1537-2197pii
87/11/1693journal_volume
87pub_type
杂志文章abstract：:We propose a new method, the leaf measuring-interval index (LMI), to estimate leaf age in morphological and physiological studies of leaves. When the plastochron, the interval between the initiation of successive leaves, is constant, the well-known leaf plastochron index (LPI) provides a robust measure of leaf age. Wh...
journal_title：American journal of botany
pub_type： 杂志文章
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journal_title：American journal of botany
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journal_title：American journal of botany
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更新日期：2001-05-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2000-05-01 00:00:00
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journal_title：American journal of botany
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journal_title：American journal of botany
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journal_title：American journal of botany
pub_type： 杂志文章
doi：
更新日期：2000-12-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2003-04-01 00:00:00
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pub_type： 杂志文章
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journal_title：American journal of botany
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doi：
更新日期：2001-09-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2016-05-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2004-09-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.1002/ajb2.1478
更新日期：2020-06-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2005-05-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.1002/ajb2.1500
更新日期：2020-07-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.0800110
更新日期：2008-11-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2002-11-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章,评审
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更新日期：2014-09-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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journal_title：American journal of botany
pub_type： 杂志文章
doi：
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2009-03-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.1002/ajb2.1414
更新日期：2020-01-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.2007159
更新日期：2008-10-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.94.8.1333
更新日期：2007-08-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2012-03-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
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更新日期：2001-10-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.93.3.399
更新日期：2006-03-01 00:00:00
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journal_title：American journal of botany
pub_type： 杂志文章
doi：10.3732/ajb.95.4.454
更新日期：2008-04-01 00:00:00
