Insight into strigolactone hormone functions in plant parasitic weeds: a regulatory perspective
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https://doi.org/10.56042/ijeb.v60i09.65154Title: Insight into strigolactone hormone functions in plant parasitic weeds: a regulatory perspectiveAuthors:
Srivastava, RakeshBajpai, RajeshKhan, ZebaSingh, Surendra PratapMehrotra, RajeshDubey, Neeraj KumarKeywords: Auxin;Broomrape;Carotenoid cleavage dioxygenase (CCDs) Cyanohydrins;Cytokinin;Haustoria;Hostparasitic interaction;Karrikin;Orobanche, Philapanhche;Phloem Root parasite;Striga;XylemIssue Date: Sep-2022Publisher: NIScPR-CSIR,IndiaAbstract: The strigolactones (SLs) are plants hormones that have multiple functions in architecture and development. The roles of
SLs in shoot branching and stem secondary growth of autotrophic plants are established. SL is also involved in the
interaction between root parasitic plants and their host plants. SLs are exudates by the root of the host plant in search of a
fungal partner for symbiotic association, while parasitic plants utilize this facility to detect the host root. The first formed
tubercle of Philapanhche, whose germinations are driven by host-derived SLs, exudates parasitic derived SLs (PSLs) and
could encourages germination of the adjacent parasitic seeds, resulting in parasite cluster formation. The existence of
aboveground spikes in clusters suggests an intriguing approach for increasing parasite population by amplifying PSLs,
which result in massive parasitic seed germination. PSLs probably have a role in the increased branching of Broomrapes
opposing the host plant, resulting in the parasites' clustered appearance aboveground. This review highlights the distinct
roles of SLs and PSLs, and their potential role in host-parasitic interaction.Page(s): 659-666ISSN: 0975-1009 (Online); 0019-5189 (Print)Appears in Collections:
IJEB Vol.60(09) [Sep 2022]Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.
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