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Insight into strigolactone hormone functions in plant parasitic weeds: a regulatory perspective

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Title Insight into strigolactone hormone functions in plant parasitic weeds: a regulatory perspective
 
Creator Srivastava, Rakesh
Bajpai, Rajesh
Khan, Zeba
Singh, Surendra Pratap
Mehrotra, Rajesh
Dubey, Neeraj Kumar
 
Subject Auxin
Broomrape
Carotenoid cleavage dioxygenase (CCDs) Cyanohydrins
Cytokinin
Haustoria
Hostparasitic interaction
Karrikin
Orobanche, Philapanhche
Phloem Root parasite
Striga
Xylem
 
Description 659-666
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.
 
Date 2022-09-01T06:39:12Z
2022-09-01T06:39:12Z
2022-09
 
Type Article
 
Identifier 0975-1009 (Online); 0019-5189 (Print)
http://nopr.niscpr.res.in/handle/123456789/60447
https://doi.org/10.56042/ijeb.v60i09.65154
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEB Vol.60(09) [Sep 2022]