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. 2020 May 29;9(6):693. doi: 10.3390/plants9060693

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Effects of two types of heat stress on the DBI of glycerolipids in wild-type Arabidopsis and hot-1. (a) The alteration of DBI in wild-type Arabidopsis and hot-1 under moderate heat stress. (b) The alteration of DBI in wild-type and hot-1 under heat shock. DBI = (Σ[N × nmol/mg])/Σ nmol/mg, where N is the total number of double bonds in the two fatty acid chains of each glycerolipid molecule. Values shown are the mean ± SE; n = 4 or 5. Symbols * and ** indicate that the content of glycerolipids under moderate heat stress differed significantly from that under ambient temperature in wild-type Arabidopsis and hot-1 at P ≤ 0.05 and ≤ 0.01, respectively. Means with different letters are significantly different according to the least significant difference (LSD) test at P < 0.05 under heat shock.