Nitrogen addition has a stronger effect on stoichiometries of non-structural carbohydrates, nitrogen and phosphorus in Bothriochloa ischaemum than elevated CO2
Sign Up to like & getrecommendations! Published in 2017 at "Plant Growth Regulation"
DOI: 10.1007/s10725-017-0298-8
Abstract: The nutrient concentrations and carbon:nitrogen:phosphorus stoichiometries of plants have been greatly altered by elevated CO2 concentrations and nitrogen (N) deposition. Studies of these changes, however, are mostly limited to tropical and subtropical forests. In this… read more here.
Keywords: addition; nitrogen phosphorus; bothriochloa ischaemum; non structural ... See more keywords
First Report of Epicoccum sorghinum Causing leaf spot on Bothriochloa ischaemum in Malaysia.
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DOI: 10.1094/pdis-03-22-0490-pdn
Abstract: Bothriochloa ischaemum (family Poaceae) is a perennial weed that can be found in borders of agricultural fields, pastures and roadsides in Malaysia. B. ischaemum is an important phytoremediation species in copper tailings dams (Jia et… read more here.
Keywords: bothriochloa ischaemum; rpb2; epicoccum sorghinum; isolate ... See more keywords
不同供水下白羊草( Bothriochloa ischaemum )离体根呼吸特征——基于稳定碳同位素示踪技术
Sign Up to like & getrecommendations! Published in 2018 at "Acta Ecologica Sinica"
DOI: 10.5846/stxb201702270317
Abstract: 植物根呼吸是土壤呼吸的主要组成，研究根呼吸对生态系统碳收支及碳平衡有重要意义。采用13C脉冲标记技术，在3种供水条件下，对比不同根离体时间（标记后0，6，24，48，216，360 h）的白羊草离体根呼吸速率和根呼吸释放的δ13C同位素比值变化，分析根参数与离体根呼吸相关性。结果表明：1）不同离体时间的离体根呼吸速率变化趋势一致，3种供水条件下无显著差异，均在0-20 min急剧下降，下降范围为32%-39%。2）测定离体根呼吸释放的δ13C在不同离体时间的变化，为实时监测转移到白羊草根系的13CO2在根部释放的过程提供了新思路；不同离体时间，3种供水条件下根呼吸释放的δ13C在2 h内均值大小呈：供水充分>轻度胁迫>重度胁迫。随离体时间（0-360 h）推移根呼吸释放的δ13C均值先增大后减小，在216 h达到峰值31.46‰；3）离体根呼吸速率和根呼吸释放的δ13C受根系根面积、比根面积、N含量、C/N及根组织δ13C的影响显著。4）轻度水分胁迫可促使根系生长（C固定）和根呼吸（C代谢）同时增加。 read more here.
Keywords: bothriochloa ischaemum; bothriochloa;
Isolation and identification of the Epichloë endophyte from Bothriochloa ischaemum and its heavy metal tolerance
Sign Up to like & getrecommendations! Published in 2018 at "Acta Ecologica Sinica"
DOI: 10.5846/stxb201801250202
Abstract: 通过对北方铜业铜矿峪矿十八河尾矿坝的优势植被白羊草进行叶鞘内生真菌分离，并对白羊草内生真菌的形态特征及孢子形态进行描述，同时，选取其中7个菌株进行actG、tefA和tubB扩增、测序和系统发育分析。结果表明，从白羊草中分离出的内生真菌属于为Epichloe属，菌落正面呈白色，背面浅黄色，白羊草内生真菌生长速度较慢，孢子大小为1.208-8.048 μm之间，孢子形态椭圆、球型。根据分子系统发育学分析结果，将白羊草内生真菌鉴定为Epichloe sibiria。通过对白羊草内生真菌进行不同浓度的重金属胁迫处理，发现其对重金属具有一定耐受性，具体表现为：Zn2+（120 mg/L）、Cu2+（160 mg/L）、Pb2+（240 mg/L）和Cd2+（8 mg/L）。对丰富天然禾草内生真菌资源，以及铜矿区生态修复过程中，白羊草内生真菌提高宿主抗性方面的应用具有重要意义。 read more here.
Keywords: ischaemum heavy; bothriochloa ischaemum; identification epichlo; epichlo endophyte ... See more keywords