Seed Transmission of an Exotic Endophyte in Tall Fescue
Seed Transmission of an Exotic Endophyte in Tall Fescue
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高羊茅中外来内生菌的种子传播
DOI：
10.1007/978-1-4899-0271-9_53
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发表时间：
1997
期刊：
影响因子：
2.3
通讯作者：
H. S. Easton
中科院分区：
文献类型：
--
作者：
S. Wilson;H. S. Easton
已经确定的内生菌菌株可以促进植物生长和抗逆性，但不会产生损害牲畜健康和生产力的主要生物碱毒素(Fletcher和Easton 1997)。通过接种将外来种质中鉴定出的菌株引入到适应环境的牧草品种中，并从受感染的植物中提取种子。这种种子必须至少再繁殖两代，才能用于栽培-内生植物协会的商业发布(Rolston，1993)。内生菌向种子的有效传播是必不可少的(Fletcher和Easton，1997)。例如，85%的传播率，加上三代人的传播率，只会导致61%的感染。
Endophyte strains have been identified which may enhance plant growth and resistance to stress but not produce the major alkaloid toxins which impair livestock health and productivity (Fletcher and Easton 1997). Strains identified in exotic germplasm are introduced to adapted grass cultivars by inoculation and seed is taken from infected plants. This seed must be multiplied for at least two more generations for commercial release of the cultivar-endophyte association (Rolston 1993). Efficient transmission of endophyte to seed is essential (Fletcher and Easton 1997). An 85% transmission rate, for example, compounded over three generations, would lead to only 61% infection.