ECOLOGICAL STUDIES ON TILE SYMBIOSIS OF TER ITOMYCES ...

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fungus symbiosis Is not so efficient at utilizing tho foods an with termites the food In recycled within the system via the fungus combs whereas with the ants spent fungus garden material in du=ped. 371*
Iý8.5 EVOLUTI<strong>ON</strong> <strong>OF</strong> ME SYMOSIS Tito evolution of the rolationship of the termites and TemitgMcla has probably been a very gradual process with mutual adaptations causing the relationship to become even closer for the benefit of both fungus and termiteg rather than a process striving to rid the termite of the fungus- as Heim (1977), proposed, Many termite species star* food within their nests and It In likely that a 372* Macrotermltinaeýancestor had -gL type of comb foodatore. This van an unexploited niche which was -probably Invaded by saprophytic fungi a Sphaerotermen , which has a comb without Termit2Mcps, In a primitive species of Macrotermitinae and feeds on rotting wood* The presencq of fungi an the comb which could produce cellulases and break down lignin would enable the Macrotermitinae to exploit more and more sound wood as the relationship evolved. This leads eventually to Mcroterm_qa which have probably the greatest nutritional Interdependancej attacking more living plants than other speclaxe, An the relationship evolved the carriage of Termit=! Yces spores by alates resulted In tho loss of tho perfect stage by those species of TernLt! 2=cex* This is an example of co. evolution where in the interaction between the termites and the fungus reciprocal pressures operate to make the evolution of one depandant on the evolution of the other. The greatest development of this relAtion. ship can be seen In Hicrotemes where there in no loss of the comb to the termites by fruiting,, an there In no baxidiocarp productionj and due to the close nutritional relationship coabu are completoly recyclode In contM3t to this view lleba (1952A) considered Terml_tomXceft to be a camonsal tolamted by the termitcal and that It was thereforo not ,a symbiotic relationnhip. The evidence points to a complete Inter- dependance of thO UrMites and Temitgm ! yces indicating a mutualistic
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ECOLOGICAL STUDIES ON TILE SYMBIOSI
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The establishment of Tennisces in n
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3*1,5 The effect on spore geminatio
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5-7 PRI-: VMTION OF SPORE CM1111NAT
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LIST OF FIGURES Legends have been a
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LIST OF TABLES 1, egends have been
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5.2.6 Fungi cultured by direct isol
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6.21.6 The first flight and appeara
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LIST OP PLATES Leoends have been ab
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GENMAL INTRODUCTION Termites are In
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Popudacanthotermes Ethiopian 2 Spha
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(Bela perse comj, China (Cheo, 1948
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alAPrER ONP A HISTORY OF THE STUDY
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there van a connection between the
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etween A. duthipi and the basidioca
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Intentionally by the termites and r
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MAKER " WO GENERAL DESCRIPTIONS OF
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plots remained as woodland, 2 were
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p5 4 Experimentý! _ý, Plots ß. %
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TAMZ 2olol ChemIc&I and particle si
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TABLE 2.2.1 Monthly rainfall figure
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ff, tn II c14 21 CII ID Ct 8 U b- 4
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-ff C: ) 0 CO 0 (0 6060,0', 6::.. 0
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The soldiers may also be dimorphic,
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PLATE 2.3.1. Macrotermes bellicosus
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2.3-2 SPECIES OF TMtITES STUDIED An
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season (Collins 1977)o It forages u
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PLATE 2.3.2 Ancistrotermes cavithor
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PIATE 2.3.4 Macrotermes bellicosus
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. OWIA fr/ o"m law pp ,. 1, ýP, --
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,.; ý; I.. 4, .. . 4, WL r7.. I It
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They forage an the surface in the w
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MIC. 1 toots CAL& Ail
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2.4.1 TMMXTOMYCES IN NATURE 2*4 TMM
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CHAPTEn WEE DETERMINATION OF ISOIAT
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depth was the same for all plates a
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0,05 ol-l (Eckert et al. 1961)- As
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(e) Cornmeal agar CUS04- 51lqO@ (g)
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and Penicilliun. Several Banidlomyc
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(e) Sorbic acid Sorble acid at 0.05
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TABLE 3*lo2 Antifungal substances p
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- uu b- nnmn 0000 %_. §.. A %. 0 W
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ý1- old ý 0 ýa 1. -0 . -% 0 I. A
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3-1.3-',, ', ConclusiOns (1) Substa
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Q2 bw- 0 ). d 5. 8 (+ 0 c (2 c: :1
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0 0o1: 1, .n R a I- ? in p pp 6- 0
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'"l r 8 (A fl- bo. '2 lot. a -4 1-
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(1) Substances appearino to be unsu
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slight controlling Offect on the _P
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CWI (3) - MI + Denlate (OoOl gl-Jý
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I II It UU f) n oo (D iD aa bd. to
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distilled water 19000 ml Kl'. ': IP
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3*2*3 ]RESULTS AND DISCUSSION The r
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3.3,1 3-3 DETEMINATION OF THE OPTIK
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TABLE, 3.3.3 Analysis of variance o
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SLn3 21 MOC 240C 290C 320C 350C 20K
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Mean diameter of colony (m m) 16-1
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FIGURE 3.3-3. Mean diameter of Term
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Mean diameter of colony (M m) 16 14
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Change in mean diametE (mm) 1 day 1
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[3-[3 Macrotermes bellicosus A-A M.
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3-3-4 DISCUSSION The growth curves
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Tbis species in not mound building
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3.4.1 INTRODUCTION 3*4 MMIMNATION O
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Between rIlls Interaction 4. o - 4-
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OD 154 4. o 4.3 4.6 4.9 5. " 5.5 4.
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Mean 15 I diameter 13 I 9 1 7 5 of
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Mean diameter of colony (M m) 20 -t
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tolerant of low 01 values than thos
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3.5 GROWTH OF DIFFERWT TLP-MITOMYCE
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FIGURE 3-5-1- (a), (b)v (c), (d), (
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16- Me an 1 0 diameter of colony (m
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TABLE 3-5.12 Analysis of variance o
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TABLZ 3.5.3 The growth of Termitomy
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FIGURE 3.5.2. Regression of growth
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CHAPTEn FOUR TERHITOWCES IN CULTURE
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44 (A ig In tr ý (+ re- m 0 fD r (
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to F IR 0 0 t oe l l. aW 0 ýa 9)-
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AN 93
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IS 5' SI PLATE Termitomyces culture
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PLATE 4.1.2. TermitomIces cultures
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TA= 4,1,3 production of cultural my
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TABLE 4.1.5 Production of mycotUtes
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more favourable for their productio
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#W. FA 40 60 0 P. * n ic 3 32 f+ ti
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": I p I a *m. ". 4 S 0 (+ 11 3 -%A
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1649 FIGURZ 4*2*1* Lengtb, of Termi
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FIGURE 4.2*2. Width of Termitomyces
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4.2.3 -PISCUSSION Spores were not p
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4.3.1 MMUDS 4.3 BLASTMPME, GMMINATI
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a0 FiGuRE 4.3-1- (a)q (b), (c), Pro
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4.3.3 DISCUSSION The blastospores g
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5-1-1 INTPODUCTION 5.1 HMIMS In ord
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The Isolation of Termft2=ces, posiD
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developing on the plates. %- The nu
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TABLE 5*14 Number of fungal colonie
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5 days when the fungi were assigned
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circumferences of queen cell (Plate
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PLATZ- 5.2.1, Fungus comb removed f
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TABLE 5*3*1 The dimensionx of vario
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TA13LE 5,2.5 Density of Macrotermes
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J*- i 0--k M0 '0 0 b-0 101 1.0 V 42
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i TABLE 5*2.8 Analysis of variance
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1 TABLE !;, 2*10 Similarities In fu
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After approximately I week In the n
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time In the foodstore-lUngua comb s
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TABLE 5., 2*12 Mean number of Terml
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Discussion In comparing Tables 5-2*
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TABLE 5.2olt& Presence of bolus In
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m 10 0 Md re m La 0 > r 1 eg o V3 (
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5-3-1 IIMZODUCTICV AND MVIODS 5-3 M
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D 0*0 ft *** a siqnlficaný dIffere
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5,3*3 DISCUSSION There In a signifi
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"'"30 plates of "ch medium were set
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TADLE 5.4.2 He= number of t=gal tol
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The levels of significant differenc
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222o NUMB NURSE FORAGERS FORAGERS W
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On the selective medium dilution pl
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ýo 9 n er e 2: le 0-ý n 9 bm 2ý
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In the dloostive system of H, belli
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and Singh, Ungh and Singh (ITIO) ob
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Table 5-6-1 Fungi developing on Inc
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4 cr ic %-C " loo R. V Put f+ 0 OV
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TABLE 596A Foodstore afterý one ye
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1 FIGURE 5.6-3. Fungi developing on
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A . - X. '.. p ". 2 Xylaria . x. K
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N p ir
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PLATE 5.6.5. Soil plastered over in
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Discussion There was very little fu
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(1) xylaria nIqri]2ex Known ýrm Af
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Sordarin f1micala and Epicoccum nip
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The appcarance of the foodstore aft
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all species of termitest and Smay b
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loottbmley mul Fuller 1921, Trinerv
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from the wound and unworked soil fr
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Discussion The. soil freshly worked
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P. b44 >d 4 * 9 6ý a to b-ä- bo.
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Comparing the results. of both sets
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Discussion DLfferent ruggostions ha
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gastric juice so that It became a m
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5.8.1 INTRODMTION 5,11 VAIMING TECH
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1 --) D .1 7 8 270a FIGURE 5.8.1. W
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mean number of fungi 25 2C Washwate
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and TrIchoderma Are usually isolate
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6.1 MGZ IN SOILS, 6.1*1 FLTML POPUL
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u c NSD u T5 n TV **o m T!; NSD - 0
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TOM 6.1.4 Siodlarities In fungal sp
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was from a similar area althouoh wi
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0-5 ". 5-50 0-5 Pit A 5-25 2!; -50
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horizons of the soil (Swift 1976),
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plates to'datermine the generaj ran
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1 ri e c: 1 f3 &2 1 cr M 1 n tD n W
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Dizcufý. Asion The results show th
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6*2*2 ''EIASIDICCARP PRODUCTION IN
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296. Termit2=ps microcarpupq from C
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Fit 4 "0 w 00 6o ý; &I mP rA C: 4
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a 9 9 9 In 10 . 0% 61 06 ic e f* 32
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Discussion (1) Association between
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in Table 6.2.7 miy be Indorrects If
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which-aro 2-4 cm in diameter and di
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temperature In tile rAiny season rw
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OLUYrL. n SEVEN WE MYSTOWGICAL MIS
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i w Owl' " p 0 li c vi %A t" S 9 ,
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TABLS 7-1*6 Hoisture contents of my
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cmd In maintained around 93-99% (Il
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7.2.1 ýMIODS, 7.2 I! H The rAi of
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7.2-3 ]DISCUSSION Tho fungus combs,
Page 347 and 348: 7-3-1 INTRODUCTION 7.3 LIGNIN DDGRA
Page 349 and 350: (b) soft rot, fungi. Under very moi
Page 351 and 352: 7-3-2- )ODIODS (1) Red cabbage extr
Page 353 and 354: TABLE 7-3-3 Reaction of TermitVycom
Page 355 and 356: The reactions did not vary In any c
Page 357 and 358: 7.4.1 INTRODUCTION 7.4 CELLULOSE DW
Page 359 and 360: the solution was read at 595 no aga
Page 361 and 362: 0 :1 1 m 1 JAN 5 k*O 10 ýe ý tv p
Page 363 and 364: - «ý 4e _e %, >ýý . *- A. 0ý I
Page 365 and 366: enz, yme production are affected by
Page 367 and 368: ut In general the ccab in too acidi
Page 369 and 370: All those substancea are therefore
Page 371 and 372: I RR I. fD a) 00 www 99 + W. m 4 ý
Page 373 and 374: 9 2 3 a W. c 5 2 0 Z
Page 375 and 376: l I r. * t+ bd. n tt o id. 1 9 p th
Page 377 and 378: Temlt2rm7ces, appears to be unusual
Page 379 and 380: 7-6 MINERAL CbNTr., NT'oF taimmmiT
Page 381 and 382: FIGURE 7.6.1. Amount of nitrogen in
Page 383 and 384: 0 :s-w w2 ooý. "I 0 I q+ 0) 1A r,
Page 385 and 386: 7-6*3 DISCUSSION Nitro2en in genera
Page 387 and 388: needed to degrade uric acid nitroge
Page 389 and 390: on comparing the nutrient content o
Page 391 and 392: 811 =MITOMYCES IN CULTURE Termit=cp
Page 393 and 394: when they left the-nesto whereas in
Page 395 and 396: workers with a lower nitrogen requi
Page 397: 8*4 SIMMIOSIS BETW M- X? 4SMTS AND
Page 401 and 402: a viable fungus combo Construction
Page 403 and 404: APPENDICES 376.
Page 405 and 406: POTATO DEXTROSE AGAR (PDA) water 11
Page 407 and 408: APPENDIX 2 MILTONS nUID Miltons ste
Page 409 and 410: 0. obscuriceRs (Wasmann) 0. patruus
Page 411 and 412: Lactarius Pers. ex Gray Lentrn-us c
Page 413 and 414: APPENDIX 5. STATISTICAL METHODS MEA
Page 415 and 416: significance was tested at p- o, o5
Page 417 and 418: (4) (5) ý6) SOURCE OF VARTATION DE
Page 419 and 420: STUDENTS t-TEIST. COMPARISON OF. IM
Page 421 and 422: REFERENCES ABO-1alATWA N. (1977). N
Page 423 and 424: *BUTCHER (1966). Cited by Ka'a"rik
Page 425 and 426: DESAI A. J. and PANDEY S. N. (1971)
Page 427 and 428: CRAY T, R, G. and WILL1AMS S. T. (1
Page 429 and 430: JOHNSON L. F. and CURL E. A. (1972)
Page 431 and 432: MANDELS M. and 'REESE H. T. (1965).
Page 433 and 434: OTIENO N. C. (1964). Contributions
Page 435 and 436: RUELLE J. E. (1970). A reviniqn of
Page 437 and 438: THORNTON R, H, (1960). Growth of fu
Page 439: WOOD T. G. and OHIAGU C, E. (1976).
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