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A potential trade-off with stictic acid improves ascospore viability in Xanthoparmelia cumberlandia

机译:与标号酸的潜在权衡改善了Xanthoparmelia Cumberlandia的asssspores活力

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The goal of this paper was to explore trade-offs between fecundity and carbon based secondary metabolites (CBSM) production within the thallus of three species of Rock-shield and Ring lichens, Arctoparmelia centrifuga, Xanthoparmelia viriduloumbrina and X. cumberlandia. Fecundity was measured by numbers of apothecia per thallus, number of spores per apothecium and percent spore germination, and it was compared with the quantity of the major CBSMs produced by the thallus. Results showed negative correlations between stictic acid and all three measures of fecundity for X. cumberlandia, which are consistent with trade-offs. When thallus and apothecium quantities of CBSMs were compared, stictic acid was the only CBSM with levels in the apothecium that were significantly higher than those in the thallus supporting a function that may protect ascospores against herbivory. Other CBSMs are hypothesized to have functions associated with the thallus and UV protection of green algae.
机译:本文的目标是探讨岩盾和环形地衣,Arctoparmelia Centrifuga,Xantoparmelia Viriduloumbrina和X. Cumberlandia的三种岩石和环形地衣中的繁殖力和碳基二次代谢物(CBSM)生产之间的权衡。 繁殖力通过每妊娠的症数量,每种剂量的孢子数量和孢子萌发百分比的孢子数,并将其与晶片产生的主要CBSM的数量进行比较。 结果表明,标号酸与X. Cumberlandia的所有三种措施之间的负相关性,这与权衡符合。 当比较胎儿和胰腺量的CBSM数量时,隐睾酸是唯一的CBSM,其含量明显高于晶粒中的唯一可保护囊孢子对草药的功能。 其他CBSM被假设以具有与绿藻的妊娠和UV保护相关的功能。

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