Stem Carbohydrate Richness in Two Cycad Species

The pachycaulous stem of cycad plants enables the storage of abundant nonstructural carbohydrates. Cycas revoluta Thunb. and Zamia furfuracea L.f. stems were analyzed for starch and 15 sugars to determine carbohydrate richness. All 15 sugars were detected in both species. The tetrasaccharide stachyo...

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Main Author: Thomas E. Marler
Format: Article
Language:English
Published: American Society for Horticultural Science (ASHS) 2023-06-01
Series:HortScience
Subjects:
Online Access:https://journals.ashs.org/hortsci/view/journals/hortsci/58/7/article-p808.xml
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author Thomas E. Marler
author_facet Thomas E. Marler
author_sort Thomas E. Marler
collection DOAJ
description The pachycaulous stem of cycad plants enables the storage of abundant nonstructural carbohydrates. Cycas revoluta Thunb. and Zamia furfuracea L.f. stems were analyzed for starch and 15 sugars to determine carbohydrate richness. All 15 sugars were detected in both species. The tetrasaccharide stachyose and the disaccharide sucrose comprised most of the sugar content. Total sugar content of these cycad stems was 330 to 360 mg·g−1 and was similar to starch content. The stems of these two species were composed of 64% to 79% nonstructural carbohydrates. The cycad stem is ideally designed to store and mobilize nonstructural carbohydrates to support sink activity when needed, and stachyose may play a prominent functional role.
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spelling doaj.art-b9c010a9c5e94024b8871c8e42d7aded2023-07-13T19:04:27ZengAmerican Society for Horticultural Science (ASHS)HortScience2327-98342023-06-01587https://doi.org/10.21273/HORTSCI17153-23Stem Carbohydrate Richness in Two Cycad Species Thomas E. MarlerThe pachycaulous stem of cycad plants enables the storage of abundant nonstructural carbohydrates. Cycas revoluta Thunb. and Zamia furfuracea L.f. stems were analyzed for starch and 15 sugars to determine carbohydrate richness. All 15 sugars were detected in both species. The tetrasaccharide stachyose and the disaccharide sucrose comprised most of the sugar content. Total sugar content of these cycad stems was 330 to 360 mg·g−1 and was similar to starch content. The stems of these two species were composed of 64% to 79% nonstructural carbohydrates. The cycad stem is ideally designed to store and mobilize nonstructural carbohydrates to support sink activity when needed, and stachyose may play a prominent functional role.https://journals.ashs.org/hortsci/view/journals/hortsci/58/7/article-p808.xmlcycas revolutaraffinose family oligosaccharidesstachyosezamia furfuracea
spellingShingle Thomas E. Marler
Stem Carbohydrate Richness in Two Cycad Species
HortScience
cycas revoluta
raffinose family oligosaccharides
stachyose
zamia furfuracea
title Stem Carbohydrate Richness in Two Cycad Species
title_full Stem Carbohydrate Richness in Two Cycad Species
title_fullStr Stem Carbohydrate Richness in Two Cycad Species
title_full_unstemmed Stem Carbohydrate Richness in Two Cycad Species
title_short Stem Carbohydrate Richness in Two Cycad Species
title_sort stem carbohydrate richness in two cycad species
topic cycas revoluta
raffinose family oligosaccharides
stachyose
zamia furfuracea
url https://journals.ashs.org/hortsci/view/journals/hortsci/58/7/article-p808.xml
work_keys_str_mv AT thomasemarler stemcarbohydraterichnessintwocycadspecies