Acyl chain length of phosphatidylserine is correlated with plant lifespan.

PLoS One

Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China; Plant Germplasm and Genomics Center, Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.

Published: January 2016

AI Article Synopsis

  • Plant lifespan is influenced by genetic and environmental factors, but the specific laws governing these effects remain unclear.
  • Research reveals that the acyl chain length (ACL) of phosphatidylserine (PS) is linked to plant lifespan, exhibiting significant diversity compared to other membrane lipids, which are more consistent across plant species and conditions.
  • As plants develop and age, the ACL of PS increases, particularly during senescence and stress, suggesting that it could serve as a molecular indicator for assessing plant lifespan and development.

Article Abstract

Plant lifespan is affected by factors with genetic and environmental bases. The laws governing these two factors and how they affect plant lifespan are unclear. Here we show that the acyl chain length (ACL) of phosphatidylserine (PS) is correlated with plant lifespan. Among the detected eight head-group classes of membrane lipids with lipidomics based on triple quadrupole tandem mass spectrometry, the ACL of PS showed high diversity, in contrast to the ACLs of the other seven classes, which were highly conserved over all stages of development in all plant species and organs and under all conditions that we studied. Further investigation found that acyl chains of PS lengthened during development, senescence, and under environmental stresses and that increasing length was accelerated by promoted- senescence. The acyl chains of PS were limited to a certain carbon number and ceased to increase in length when plants were close to death. These findings suggest that the ACL of PS can count plant lifespan and could be a molecular scale ruler for measuring plant development and senescence.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4110022PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0103227PLOS

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