CN114395488A - 一种促进香菇单核菌丝生长的培养基及其制备方法 - Google Patents
一种促进香菇单核菌丝生长的培养基及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种促进香菇单核菌丝生长的培养基及其制备方法,每升培养基由以下原料制成:带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣20‑50g、麦芽糖20g、黄豆粉3g、琼脂粉17‑20g、多维元素片0.1‑0.2g,余量为水。与现有技术相比,本发明首次以带有羊肚菌菌丝的营养袋为部分原料进行熬制培养基,以糙米和红枣代替马铃薯熬制培养基,利用多维元素片添加到培养基中,能够促进组织块萌发、加快生长速度的同时,增强了菌丝长势,降低了菌块被细菌等杂菌污染的机会,降低污染率;从而为香菇利用单核杂交技术进行新种质创制提供了技术支持,具有一定的经济效益和社会效益。
Description
技术领域
本发明涉及香菇育种技术领域,特别是一种促进香菇单核菌丝生长的培养基及其制备方法。
背景技术
香菇Lentinula edodes隶属于担子菌门、伞菌纲、伞菌目、类脐菇科、香菇属。香菇在中国已经有千年的栽培历史,目前是我国产量最高的食用菌类,被广泛栽培。优良的香菇菌株是保证香菇产业稳步、健康发展的基础。菌株性状的好坏,直接影响香菇产业的产值和经济效益,其作用越来越为广大生产者和育种者重视,种质资源创新也显得尤为重要。目前香菇较常见的育种方法为杂交育种法,用其中杂交育种包括孢子杂交和原生质体杂交等。杂交过程需要将孢子或原生质体进行稀释分离成单孢或单核菌丝,分离获得的单孢菌丝生长速度较慢,污染率高,也延长了杂交育种周期。基于此,亟待通过研发一种能促进单核菌丝生长的培养基配方及其制备方法,从而提高制种成活率,提高工作效率。
发明内容
本发明的目的是要现有技术中单核菌丝生长速度慢、污染率高等问题,提供一种促进香菇单核菌丝生长的培养基及其制备方法。
为达到上述目的,本发明是按照以下技术方案实施的:
一种促进香菇单核菌丝生长的培养基,每升培养基由以下原料制成:
带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣20-50g、麦芽糖20g、黄豆粉3g、琼脂粉17-20g、多维元素片0.1-0.2g,余量为水。
优选地,所述促进香菇单核菌丝生长的培养基,每升培养基由以下原料制成:
带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣50g、麦芽糖20g、黄豆粉3g、琼脂粉20g、多维元素片0.1g,余量为水。
进一步地,所述带菌丝的羊肚菌营养袋培养基由以下方法制得:按以下重量百分比称取木屑49%、麦粒20%、稻壳15%、腐殖质土15%、石灰1%,小麦提前浸泡12h,之后和其它料拌匀,加水搅拌控制含水量为60%,121℃高压灭菌40min,冷却接入羊肚菌菌种,25℃培养至满袋。
优选地,所述多维元素片中包含L赖氨酸12.5mg、维生素A 2500IU,维生素D2200IU、维生素E 5mg、维生素B1 2.5mg、维生素B2 2.5mg、维生素B6 0.25mg、维生素C 25mg、烟酰胺7.5mg、泛酸钙2.5mg、重酒石酸胆碱25mg、肌醇25mg、铁5mg、铜0.5mg、锰0.5mg、锌0.25mg、磷酸氢钙279mg、镁0.5mg、钾5mg。
另外,本发明还提供了一种促进香菇单核菌丝生长的培养基的制备方法,包括以下步骤:
步骤1、称取带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣20-50g,加水煮30min,过滤取其汁液,加水定容至1000ml,获得原液A;
步骤3、称取琼脂粉17-20g,倒入原液A中,边倒边搅拌,至熔化,获得原液B;
步骤4、称取麦芽糖20g、黄豆粉3g,倒入原液B中,搅拌熔化,获得原液C;
步骤5、取多维元素片0.1-0.2g,捣碎后加入原液C中,将原液C于121℃高压灭菌20min,即得宾王菇、香菇组织分离培养基。
与现有技术相比,本发明首次以带有羊肚菌菌丝的营养袋为部分原料进行熬制培养基,有效的促进了香菇单核菌丝的生长速度和长势,解决了香菇单核菌丝在普通PDA培养基生长慢、污染率高的问题;其次以糙米和红枣代替马铃薯熬制培养基,糙米中丰富的蛋白质、矿物质及红枣中糖类、氨基酸及有机酸等促进香菇单核菌丝的生长,提高成活率;首次利用多维元素片添加到培养基中,多项微量元素在促进香菇单核菌丝生长的同时,增强了菌丝长势,降低了菌丝被细菌等杂菌污染的机会,降低污染率;从而为香菇利用单核菌丝进行新种质创制提供了技术支持,具有一定的经济效益和社会效益。
具体实施方式
为使本发明的目的、技术方案及优点更加清楚明白,以下结合实施例,对本发明进行进一步的详细说明。此处所描述的具体实施例仅用于解释本发明,并不用于限定发明。
实施例1
本实施例的一种促进香菇单核菌丝生长的培养基,每升培养基由以下原料制成:带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣20g、麦芽糖20g、黄豆粉3g、琼脂粉17g、多维元素片0.2g,余量为水;
制备时,称取带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣20g,加水煮30min,过滤取其汁液,加水定容至1000ml,获得原液A;
称取琼脂粉17g,倒入原液A中,边倒边搅拌,至熔化,获得原液B;
称取麦芽糖20g、黄豆粉3g,倒入原液B中,搅拌熔化,获得原液C;
取多维元素片0.2g,捣碎后加入原液C中,将原液C于121℃高压灭菌20min,即得促进香菇单核菌丝生长的培养基。
实施例2
本实施例的一种促进香菇单核菌丝生长的培养基,每升培养基由以下原料制成:带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣40g、麦芽糖20g、黄豆粉3g、琼脂粉18g、多维元素片0.15g,余量为水;
制备时,称取带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣40g,加水煮30min,过滤取其汁液,加水定容至1000ml,获得原液A;
称取琼脂粉20g,倒入原液A中,边倒边搅拌,至熔化,获得原液B;
称取麦芽糖20g、黄豆粉3g,倒入原液B中,搅拌熔化,获得原液C;
取多维元素片0.15g,捣碎后加入原液C中,将原液C于121℃高压灭菌20min,即得促进香菇单核菌丝生长的培养基。
实施例3
本实施例的一种促进香菇单核菌丝生长的培养基,每升培养基由以下原料制成:带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣50g、麦芽糖20g、黄豆粉3g、琼脂粉20g、多维元素片0.1g,余量为水;
制备时,称取带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣50g,加水煮30min,过滤取其汁液,加水定容至1000ml,获得原液A;
称取琼脂粉20g,倒入原液A中,边倒边搅拌,至熔化,获得原液B;
称取麦芽糖20g、黄豆粉3g,倒入原液B中,搅拌熔化,获得原液C;
取多维元素片0.1g,捣碎后加入原液C中,将原液C于121℃高压灭菌20min,即得促进香菇单核菌丝生长的培养基
进一步,为了验证本发明促进香菇单核菌丝生长的培养基对香菇单孢(单核)菌丝生长的影响首先设置以下对比例。
对比例1
提供一种培养基,每升培养基由以下原料制成:土豆200g、葡萄糖20g、琼脂粉20g,余量为水。
在烧杯或广口罐头瓶底放置一层滤纸,用细铁丝做一个三角座,然后将新鲜的香菇子实体剪去根部,插在铁丝上,菌褶朝下,顶部用面巾纸封口,置于25℃放置24h,收集孢子置于离心管中,进行稀释分离单孢,利用显微镜对单孢(核)菌丝进行鉴定。
对获得的单孢(核)菌丝进行纯培养,取0.3~0.5mm的小块分别接种于实施例3和对比例1(记为CK)的培养基中,置于25℃的培养箱内进行黑暗培养。每个处理组合接种10块,3次重复,3d和7d时统计接种块萌发率和菌丝生长速度,统计结果如表1所示。
表1
由表1可知,用带有羊肚菌菌丝的营养袋及用糙米和红枣的培养基,单孢子萌发率显著不同,实施例3的萌发率明显优于对照CK;菌丝生长速度及长势与对照差异明显,在香菇单核菌丝生长方面具有绝对优势,添加羊肚菌菌丝的营养袋对菌丝生长促作用明显。因此,可以得出如下结论:本发明的培养基能够加快香菇单核菌丝生长速度的同时,增强了菌丝长势。
本发明的技术方案不限于上述具体实施例的限制,凡是根据本发明的技术方案做出的技术变形,均落入本发明的保护范围之内。
Claims (5)
1.一种促进香菇单核菌丝生长的培养基,其特征在于,每升培养基由以下原料制成:
带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣20-50g、麦芽糖20g、黄豆粉3g、琼脂粉17-20g、多维元素片0.1-0.2g,余量为水。
2.根据权利要求1所述的促进香菇单核菌丝生长的培养基,其特征在于,每升培养基由以下原料制成:
带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣50g、麦芽糖20g、黄豆粉3g、琼脂粉20g、多维元素片0.1g,余量为水。
3.根据权利要求1所述的促进香菇单核菌丝生长的培养基,其特征在于,所述带菌丝的羊肚菌营养袋培养基由以下方法制得:按以下重量百分比称取木屑49%、麦粒20%、稻壳15%、腐殖质土15%、石灰1%,小麦提前浸泡12h,之后和其它料拌匀,加水搅拌控制含水量为60%,121℃高压灭菌40min,冷却接入羊肚菌菌种,25℃培养至满袋。
4.根据权利要求2所述的促进香菇单核菌丝生长的培养基,其特征在于:所述多维元素片中包含L赖氨酸12.5mg、维生素A 2500IU,维生素D2 200IU、维生素E 5mg、维生素B12.5mg、维生素B2 2.5mg、维生素B6 0.25mg、维生素C 25mg、烟酰胺7.5mg、泛酸钙2.5mg、重酒石酸胆碱25mg、肌醇25mg、铁5mg、铜0.5mg、锰0.5mg、锌0.25mg、磷酸氢钙279mg、镁0.5mg、钾5mg。
5.一种如权利要求1所述的促进香菇单核菌丝生长的培养基的制备方法,其特征在于,包括以下步骤:
步骤1、称取带菌丝的羊肚菌营养袋培养基100g、糙米50g、红枣20-50g,加水煮30min,过滤取其汁液,加水定容至1000ml,获得原液A;
步骤3、称取琼脂粉17-20g,倒入原液A中,边倒边搅拌,至熔化,获得原液B;
步骤4、称取麦芽糖20g、黄豆粉3g,倒入原液B中,搅拌熔化,获得原液C;
步骤5、取多维元素片0.1-0.2g,捣碎后加入原液C中,将原液C于121℃高压灭菌20min,即得促进香菇单核菌丝生长的培养基。
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