American Journal of Plant Sciences

Volume 7, Issue 7 (May 2016)

ISSN Print: 2158-2742   ISSN Online: 2158-2750

Google-based Impact Factor: 1.20  Citations  h5-index & Ranking

Evaluating Protective Terpenoid Aldehyde Compounds in Cotton (Gossypium hirsutum L.) Roots

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DOI: 10.4236/ajps.2016.77104    1,846 Downloads   3,164 Views  Citations
Author(s)

ABSTRACT

Cotton (Gossypium hirsutum L.) has epidermal glands containing terpenoid aldehyde (TA) compounds that protect the plant from pests and diseases. One TA, gossypol, has two forms (+) and (-) that are present in varying amounts. This study evaluated the variation in roots for TA compounds and how environment affected the levels of these compounds. Similar to seed, gossypol was the predominant TA in roots. No heliocides were detected with only trace amounts of other TAs, such as hemigossypolone or hemigossypol, detected in a few lines. Among the glanded lines, there were significant differences in gossypol content. Percent plus gossypol was consistently 4% - 10% higher in roots than seed. One line, “Mac7”, had 12 - 14 ug/mg gossypol in roots and 18 ug/mg in seed as well as >90% (+) gossypol in both roots and seed. Unlike other tissues in glandless cotton, the roots of glandless lines consistently produced detectable amounts of gossypol with 77% to 82% in the (+) form. Multi-year field tests showed that although gossypol levels in the roots were more affected by insect pressure or other environmental conditions than seed, there was selectable variation in upland cotton for root gossypol content. Unlike other parts of a glandless plant, the roots retained a functioning biochemical pathway for gossypol production.

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Scheffler, J. (2016) Evaluating Protective Terpenoid Aldehyde Compounds in Cotton (Gossypium hirsutum L.) Roots. American Journal of Plant Sciences, 7, 1086-1097. doi: 10.4236/ajps.2016.77104.

Cited by

[1] Gossypol and related compounds are produced and accumulate in the aboveground parts of the cotton plant, independent of roots as the source
Planta, 2023
[2] Bioactive Phytochemicals from Cotton (Gossypium hirsutum) Seed Oil Processing By-products
… from Vegetable Oil and …, 2021
[3] Ultra-Low Gossypol Cottonseed: Selective Gene Silencing Opens Up a Vast Resource of Plant-Based Protein to Improve Human Nutrition
2020
[4] Biotechnological Potential of Cottonseed, a By-Product of Cotton Production
2020
[5] Chemical defense responses of upland cotton, Gossypium hirsutum L. to physical wounding
Plant Direct, 2019
[6] RNAi suppression of CYP82D P450 hydroxylase, an enzyme involved in gossypol biosynthesis, enhances resistance to Fusarium wilt in cotton
2019
[7] ANTIBACTERIAL EFFECT OF FIVE SELECTED NIGERIAN MEDICINAL PLANT EXTRACTS

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