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Physiological and metabolic changes in Hevea brasiliensis associated with Rigidoporus microporus infection (Record no. 75232)

MARC details
000 -LEADER
fixed length control field	02141nam a22001577a 4500
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name	Maiden, N.A.
245 ## - TITLE STATEMENT
Title	Physiological and metabolic changes in Hevea brasiliensis associated with Rigidoporus microporus infection
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher	Proceedings of the IRRDB International Rubber Conference 2023, 20-21 February 2023, IRRDB, Kuala Lumpur, Malaysia, pp. 174-178.
520 ## - SUMMARY, ETC.
Summary, etc	One of the most debilitating diseases affecting the rubber tree (Hevea brasiliensis) is white root disease caused by the fungal pathogen Rigidoporus microporus. Controlling the disease is challenging because infection occurs below-ground and above-ground. Symptoms are manifested only when infection is at advanced stage. How this disease alters host physiology and metabolism is scarcely explored. This study investigated the effects of R. microporus infection on leaf gas exchange parameters and the global metabolome of H. brasiliensis. Disease severity and leaf gas exchange parameters were measured, and metabolite extraction were conducted at zero, three and six months after inoculation (mai). Significant differences in leaf gas exchange parameters between inoculated and non-inoculated plants were detected as early as three mai. Twenty seven unique metabolites were selected based on multivariate analysis and 23 of them were annotated. The annotated metabolites included compounds from various classes play roles related to various aspects of stress response. Pearson correlation coefficient was performed to identify characters associated with below-ground disease progression. Net CO2 assimilation rate (A), stomatal conductance to water vapour (gs) and 15 metabolites showed highly significant negative correlation while 11 metabolites exhibited highly significant positive correlation with root disease severity index (%). These observations can be utilised in the development of diagnostic tools for early detection of white root disease.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	White root disease
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Leaf gas exchange
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Metabolites
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Rigidoporus microporus
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name	Syd Ali, N., Ahmad, K., Atan, S. and Wong, M.Y.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	Journals

Holdings
Withdrawn status	Lost status	Damaged status	Not for loan	Home library	Current library	Date acquired	Koha item type
				RRII Library	RRII Library	25/04/2024	Journals