• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Botanica Malacitana >ESTUDIOS ESPORALES EN ESPECIES DEL GRUPO BLECHNUM PENNA-MARINA (BLECHNACEAE-PTERIDOPHYTA)
【24h】

ESTUDIOS ESPORALES EN ESPECIES DEL GRUPO BLECHNUM PENNA-MARINA (BLECHNACEAE-PTERIDOPHYTA)

机译：BLECHNUM PENNA-MARINA群（BLECHNACEAE-PTERIDOPHYTA）物种的球形研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The spores of eleven taxa of the Blechnum penna-marina group, B.asperum, B. blechnoides, B. corralense, B. fernandezianum, B. microphyllum, B. mochaenum subsp. achátense, B. mochaenum subsp. mochaenum, B. mochaenum subsp. squamipes, B. penna-marina,B. spicant, and B. staloniferum were studied with light, and scanning electron microscopes . Spores are monolete and ellipsoidal in all taxa, with macro-ornamentation predominantly among muriform types. Sporoderm consists of a psilatc, rugulate, or moreor less supperficially granulate exospore, and a rugate, rugulate, venulosc-rugulate, fossulate-rugulate, cristate-reticulate perispore. An exception are B. jernandezianum spores, with psilate perispores that bear orbicules. The perispore is a stratified, rather complex wall formed by three strata of different thickness and morphology: an outer continuous stratum, which bears the elements of the sculpture, a middle stratum which is alveolate, folióse or bear pillar-like elements, and a very thin, not clearly defined inner stratum. Blechnum mochaenum subsp. mochaenum and B. penna-marina showed larger spores in some specimens, a condition that may be related with different ploidia. Macro-ornamentation and morphology of the perispore of some taxa is alsofound in species of other groups of Blechnum. Performed studies suggest that spore characters do not define a particular group but the taxa, which is considered a new promising perspective for the systematic of the whole genus.
机译：Blechnum penna-marina组的11个分类单元的孢子，B.asperum，B.blechnoides，B.corralense，B.fernandezianum，B.microphyllum，B.mochaenum亚种。 achátense，B. mochaenum subsp。 B. mochaenum亚种西番莲，B。彭纳马里纳，B。用光和扫描电子显微镜研究了香料和斯氏芽孢杆菌。孢子在所有类群中均为单核和椭圆形，在小孔类型中主要进行宏观装饰。孢子囊由鳞茎状，片状或表面上较浅的颗粒状外生孢子组成，以及片状，片状，维氏小片状，波纹状，皱纹状，脉状网状周壁。 B. jernandezianum孢子是一个例外，其扁桃体孢子带有小球。周孢子是由三个不同厚度和形态的地层组成的分层的，相当复杂的壁：一个外部连续地层，该地层具有雕塑的元素;一个中间层，其为肺泡状，叶状或柱状元素，以及内层较薄，不清楚。墨角藻亚种。 Mochaenum和B. penna-marina在某些标本中显示出较大的孢子，这种情况可能与不同的倍性有关。在其他种类的Blechnum中也发现了一些分类群的孢子的宏观装饰和形态。进行的研究表明，孢子性状并没有定义一个特定的群体，而是一个分类单元，这被认为是整个属的系统性的新前景。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号