受桤木威胁：根系的组织学研究

Threatened by Alder : A Histological Study of Roots.

作者信息

Nave Corina, Schwan Juliette, Werres Sabine, Riebesehl Janett

机构信息

Julius Kühn Institute (JKI)-Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Horticulture and Forests, Messeweg 11/12, 38104 Braunschweig, Germany.

Julius Kühn Institute (JKI)-Federal Research Centre for Cultivated Plants, Institute for National and International Plant Health, Messeweg 11/12, 38104 Braunschweig, Germany.

出版信息

Pathogens. 2021 Aug 3;10(8):977. doi: 10.3390/pathogens10080977.

DOI:10.3390/pathogens10080977

PMID:34451441

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8401901/

Abstract

Alder dieback remains a major problem in European alder stands and its spread continues to threaten their existence. The causal agent of this disease is the so-called alder species complex, which includes the hybrid × and its parental species and . Little is known about the survival of these species in alder. The aim of our investigations was to find out whether, and if so where, the pathogen survives. The subject of these studies was alder roots. Therefore, artificial infection studies and histological studies with . × and were carried out on seedlings of black alder (). These histological studies revealed oogonia and oospores of . × and in different parts of the root tissue.

摘要

桤木枯死病仍是欧洲桤木林分中的一个主要问题，其传播继续威胁着它们的生存。这种病害的致病因子是所谓的桤木物种复合体，其中包括杂种×及其亲本物种和。对于这些物种在桤木中的存活情况知之甚少。我们研究的目的是查明病原体是否存活，若存活，具体在何处存活。这些研究的对象是桤木根系。因此，对欧洲黑桤木（）的幼苗进行了用。×和进行的人工感染研究和组织学研究。这些组织学研究在根组织的不同部位发现了。×和的藏卵器和卵孢子。