Influence of insect-infested cotyledons on early seedling growth of Mongolian oak, Quercus mongolica
Influence of insect-infested cotyledons on early seedling growth of Mongolian oak, Quercus mongolica
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受虫子叶对蒙古栎幼苗早期生长的影响
DOI：
10.1007/s11099-008-0022-z
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发表时间：
2008
期刊：
影响因子：
2.7
通讯作者：
Yi, X. F.
中科院分区：
文献类型：
--
作者：
Zhang, Z. B.;Yi, X. F.
虫害(II)的橡子比健康的(H)提前3d萌发。然而，与H-橡子相比，II-橡子的发芽率显著下降，淀粉酶活性也有较大差异。我们发现II-橡子第一真叶的净光合速率和总叶绿素含量明显低于H-橡子。II-橡子萌发的幼苗光系统2的最大光化学效率(PS2，Fv/Fm)低于H-橡子萌发的幼苗。虫害，特别是象甲(Curculio spp.)对主根长度、株高、根干质量和第一次展开真叶均有显著的负效应。由于子叶资源储备的限制，第一片真叶的叶面积和全氮含量下降。象甲对子叶的危害是Ⅱ类橡子萌发幼苗发育不良的主要原因。由于小型啮齿动物对橡子的高度捕食，种子成苗与种子侵染昆虫之间可能存在相互关系。
Insect-infested (II) acorns germinated 3 d earlier than the healthy (H) ones. However, germination ratio of II-acorns was strongly decreased compared with H-acorns and there were great differences in activities of amylase. We found an apparently lower net photosynthetic rate and total chlorophyll contents of the first true leaf of II-acorns than of the H-ones. Maximal photochemical efficiency of photosystem 2 (PS2, Fv/Fm) decreased in seedlings germinated from II-acorns than from the H-ones. Infestation of insects, especially for weevil (Curculio spp.) had significantly negative effects on length of taproots, height of plants, dry mass (DM) of roots and the first fully expanded true leaf. Leaf area and total N content of the first true leaf declined due to limitation of resource reserves in cotyledons. Damage of cotyledons caused by weevil accounted much for poor development of seedlings germinated from II-acorns. A mutual relationship between seedling establishment and seed-infesting insects may exist due to high predation on H-acorns by small rodents.
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DOI：
10.1111/j.1438-8677.1996.tb00497.x
发表时间：
1996-03
期刊：
--
影响因子：
--
作者：
C. Andersson;I. Frost
通讯作者：
C. Andersson;I. Frost
影响因子：
3.4
作者：
R. Tripathi;M. L. Khan
通讯作者：
R. Tripathi;M. L. Khan
影响因子：
3.7
作者：
Zhishu Xiao;M. Harris;Zhibin Zhang
通讯作者：
Zhishu Xiao;M. Harris;Zhibin Zhang
影响因子：
2.8
作者：
R. Bacilieri;M. Bouchet;D. Bran;M. Grandjanny;M. Maistre;P. Perret;F. Romane
通讯作者：
R. Bacilieri;M. Bouchet;D. Bran;M. Grandjanny;M. Maistre;P. Perret;F. Romane
影响因子：
3.7
作者：
Mosandl, R;Kleinert, A
通讯作者：
Kleinert, A